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8. 35 1 NTN TECHNICAL REVIEW No 76
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11. T E M 6a 6D CrN i 4 Microstructure of the
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15. 4 1 me vl Dn 2 A _ 4
16. 11 10 NTN 8B0
17. 0 2007 NTN 1 N
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19. 80 Am ww Mgm qq 4 2
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21. NTN 1 Super Sliding Bearing Fat aE TIT ia Nl 5 105
22. 2 ee WW 7 Concept of Model research 2
23. Construction of the main shaft CRB FCCRB NFV SRB TRB CRB FCCRB DTRB 18 NTN TECHNICAL REVIEW No 76 2008 3 3
24. 32 6 0 95 24 ee 4 jm do G x 1 sp 2 a 5 3
25. DODOLEETCE 3 UTE g JUUU WE dm 10 0KW sh UK LM 1 Example of high technology AFM probe 20 2
26. 4 JJ 14 95 M 3 9 19984 8 8
27. 1 NTN 199893 1 9 4 1 1 1983
28. 10 NTN TECHNICAL REV
29. 1 P165 1964 NTN TECHNICAL REVIEW No 76 2008 Development of High Speed Cylindrical Roller Bearings for Machine Tools Masatsugu MORI Takuji KOBAYASHI
30. 5 EPDM UL94 VO
31. lt Cross section of bearing NTN TECHNICAL REVIEW No 76 2008 3 Values for heat transfer coefficient calculation ms SA a A z m s 2 Py OC 7 lt Re ee Re 3Xx105 M 0 399e 95Pr 943 Ae gt 3X10 Nu
32. Duplex printing IS widely used in recent copy machines and printers as a part of environmental measures Those copy machines and printers denerally use reversal mechanisms to reverse DaDer by using forward and reverse rotation of the paper feed roller NTN has developed Direction Change Unit for Office Eduipment without using an electric motor for forward and reverse rotation This new unit only uses one way rotation which is created by another drive System This report introduces the structure and function of this product 1
33. 15 15 Schematic of angular contact ball bearind ts sg Qq gt 1
34. 9 1 006 3 1800 70 79
35. 1 N S C 3 IC 6 Sectional view of integrated sensor bearin 3 Cut model of integrated sensor bearing EE
36. 32CrMoV 13 the Aubert amp Duval Company the Mateis laboratory Lyon INSA Daniel GIRODIN SNR Elemental Bearing Technology 1 Pearson P K The history and future of aircraft turbine engine bearings Bearing steels Into the 21 century J J C Hoo Ed ASTM STP 1327 p335 353 1998 2 Spitzer R New case hardening steel provides greater fracture toughness Ball Bearing J SKF 234 6 11 1989 3 Bohmer H J Residual stresses and material behaviour of M50NiL and RBD Bearing Steels J J C Hoo Ed ASTM STP 1195 p34 48 1993 4 Averbach B L and Bamberger E N Analysis of bearing incidents in aicraft gas turbine mainshaft beari
37. 10 G10 1 Y X 2 XY 10 Specification of table for G10 LCD glass substrate X Y 1 500mm s 1 500mm s 95 W3 900XD5 200XH2 500 mm le
38. NTN 1
39. 1 2008 no 509 pp 19 34 T1988 3 no 864 pp 24 37 2007 4 NEDO no 1021 2008 5 M vol 40 no 1 1 pp 889 892 1995 6 JAXA VM 6 ETS WWW jaxa jp projects sat ets6 index j html Sanyo Technical Report vol 13 no 1 pp 7 3 76 2006 8 19 pp 31 34 2008 9
40. 0 3N Nm tr 10 Photograph of experimental system for coil embolization 11 Photograph of coil embolization I N s 12 Measurement result of insertion force 5 YY
41. The NTN color filter repair system fixes defects in color filter which is primary components of liquid crystal display The most important feature of this system is the function to paste ink to a color less spot on the color filter commonly referred to as a white defect The pasting unit carries out the ink pasting process by pasting needle The system moves the pasting needle to touch the defect of color filter and paste a slight amount of ink on the tip of the pasting needle to the defect Pasting needle system can stably carry out the pasting process because there is no possibility of clogging like dispenser system and it has obtained favorable comments from many customers This paper explains the outline of the pasting mechanism and the linear changer with built in pasting units 1 LCD PDP FPD
42. Er rrdk i Re TE BE Fi FE 1 L 1 i EL 1 PE Ha E 1 pl EW 1 tk ET ES Ei ai Kt 1 i ET a TT LL 1 mm 1 at JT L Ti ma EL LT Wi tt 0 In a aH i a ni er 1 3 Cross sectional view of the flaking 4
43. XY 133
44. 3 10 15 509 90 3 1 10 FF gt 10 15 3 VA VE mm 0 6mm FEM
45. EHD 25 3 36CrMoV13 Cr Mo V Mn and Al
46. 3 10 4 PEEK 1 a PEEK 11 11 a S2000min
47. NTN 10 30 1 1 4 24 JIMTOF 2008 MQCJ
48. 1 100 1 150 3m 100m
49. 3 SEM 9 10 11 3 SUJ SCM4 0 SNCM420 SNCM4850 SCM4250 3 Hardness and Area rate of precipitates HV DSCM420 710 SNCM420 710 SUJ2 740 TlOum 9 SCM420 SEM Microstructure of Carb
50. The polymer gel is composed of three dimensional network polymer and large amount of liquid There is a poSSibility to be applied as a low friction material Decause it has large amount of liquid internally compared with the oi impregnated resin currently used as a sliding material In this paper we report on the friction properties of nigh strength polymer gel that is called the double network gel under various conditions against steel 1 9
51. In recent years endovascular coil embolization is becoming a standard treatment option for people with a cerebral aneurysm Since the coil embolization needs advanced coil insertion technique an analysis of the technique and development of a Surgery system for assistance and training are desired We have developed a novel optical force sensor for coil delivery wire This paper presents the sensor and the result of an evaluation the sensor by using silicone dummy aneurySm 1
52. 6 LED LED 3 8 ll UITINITIRIVTIITNT IIT RNY MINTITTITIIRTIIN NY NL 1 Im 1 FI 0 J 1 I 2 I TF Tin ATIAATINT MIMDAORN MMOLRTIRIIA LTTTII LITTAITIAIIIGRATTRIITADITINTITIIKITILY 4 Y connector with built in force sensor ee 9 2 5 5 Y Structure of the Y connector with built in force sensor
53. 3 2 The comparison of various carburizing process 15 NTN TECHNICAL REVIEW No 76 2008 33734
54. 50 100mm 0 1 0 2mm 1 a 1 D 1 a CC
55. 1950 M50 8BOMoCrV 4 16 SNR Elemental Bearing Technology 23 NTN TECHNICAL REVIEW No 76 2008 e en mmX min 40 M50NiL 13MoCrNi42 16 14 X20WCr10
56. IC G Output signal of sensor 2 bb C 4 5
57. 2G0 141 NTN 10 LMe7eb
58. 8 4 9
59. 1 Cerebral aneurysm 63 NTN TECHNICAL REVIEW No 76 2008 NTN 9 Y G3
60. TiN AIP AIP 1 AIP YC AIP TiN TiN TiN
61. OUFF 3 1 ON GC 4 1
62. 3 5 1 1 3 3 1 1 100 7 500 e
63. 3 4 3 3 1 EPDM 0 1200 EPDM 100 150mmx 150mmxt2mm 1 4 5
64. 2 a Before Examination b 10 Te Condition of the attached grease to detection point c 100 11 T5 Condition of the attached grease to detection point after 100 hours a d 500 After examination 128 State of grease around detector KS vv 1 9 2008 2 S Morris H E G Powrie et al Electrostatic Charge monitoring of unlubricated sliding Wegr Of a Dearing steel Wear 255 480 443 009 3
65. Nd A 4 Servo System of servo motor 5 Sectional view of servo motor NTN TECHNICAL REVIEW No 76 2008 3 NTN NTN 3 150C 3 Specification of standard type of integrated sensor bearing 3 NTN SNR
66. 1 1 1 Transient state and steady state 74 N 1
67. 3 6 6 Improved pastind unit 1 X
68. 4 NHs NHs NHs Ns Hs A Dl Me NTN TECHNICAL REVIEW No 76 2008
69. 4kN gt 10kN 396FS 0 6G ma 146 gt lt s 10 6 4 18 50 50 e 147 5026 9 FA 1 L0
70. 70 mm nm 325 A newly designed cylindrical roller bearing has been developed in order that the cylindrical roller bearing can operate as fast as high Speed angular contact ball bearings used for machine tool main SDIindles under the condition of air oil lubrication The cage riding structure improveSs lubrication of the cage guiding Surface at high speed operations by quiding the cage bore on the air oil nozzle Outside Surfaces The inner ring made of ceramics prevents exceSsive bearing preloading in the radial direction due to thermal and centrifugal expansion to enable high speed rotation The ceramic Inner ring IS radially compressed by ring Spacers which also work as ribs so that the hoop stresSs generated in the inner ring can be reduced The prototyped bearing with an inner diameter 70 mm SUCCeSSsfully operates at a speed of 3 25 million in the dmn value which compares with air oll lubricated ultrahigh Speed angular contact ball bearings fo
71. 3 C A DU 0
72. s 1900mm 4 Analysis example of main bearing 3 3 1 lt gt NTN
73. Bearings for aeroSDace aDDlications Such as main shafts of jet engines need to be extremely reliable in order to reduce the In Fligt Shut Down IFSD ratio and extend the freduency of maintenance operationSs These functional and economic issues reduire for the material the implementation of appropriate and reliable metallurgical solutionSs This report describes the developments of the nitriding 32CrMoV13 steel AMS 6481 to optimise itS properties in order to overcome the limits of classical steels used for aeronautical applications such as resistance to surface damage and toughness The deep nitriding provides a case deeper than 600 um a high surface hardness in the diffusion zone due to a semi coherent precipitation of nano metric chromium nitrides This precipitation also generate compressive residual stresseS while maintaining a notably high tough core hese properties offer considerable advantages in extending both the surface resistance to contamination and the ability to design bearings with integrated design and thin sections that consequently reduce the weight of components
74. 1 DN GUJ2 45 NTN TECHNICAL REVIEW No 76 2008 a b DN Ordinary polymer gel DN gel 1 DN CompreSsion property of DN gel J P Gong Y Katsuyama T Kurokawa Y Osada Double Network Hydrogels with Extremely High Mechanical Strength Advanced Materials 2003 15 14 1155 1158 Copyright Wiley VCH Verlag GmbH amp Co KGaA Reproduced with permission DN 3
75. 1 Test conditions 1 5mmX1 5mm X70mm MHz 1000 3000 C 25 1000 MHz 4 Relationship between content of ceramic Dowder and dielectric constant 5 Relationship between content of ceramic powder and tanO 3 5C 16 5 6
76. 3 10 m 0 5N 3 E 5 300 1 sX300s 4 a A E 100 _ SisN4 SisN4 AlzOz E A C DI 0 1 a 6 N 1 0 1 1 G 20 1 a i 0 1000 2000 3000 4000 5000 6000 7000 Time s 3 Experimental result NTN TECHNICAL REVIEW No 76 2008 50 m 40 50um 30 40um 20 30 m 0 5 10 15 20 25 30 a Sensor data analysis result 80 m 50 80 m 40 50um 30 40Lum
77. NTN VA VA Test results A ba 10 Large Gantry Table for the 10th Generation LCD Substrates NTN
78. SCM4820 SUJ2 14 SCM420 40 35 I 30 te 25 X 20 SCM420 HP 10 SCM420 5 SUJ2 TE SUJ2 2 _ J 0 50 100 150 200 min 13 Change with time of wear amount under oil lubrication NTN TECHNICAL REVIEW No 76 2008 SCM420 SCM420 SUJ2 SUJ2 X10 mm3 150 ro min 14 Change with time of wear amount under oil and water lubrication
79. 1 30 HSRT7 PPS C Io EN rn er 1 GO000 8 000 140 0 2 000 4 000 6 000 min 0 35 70 106 dm 7 lt 104 Condition of grease in the reservoirs after 2000 h of endurance test HSRT 7 PPS NN3028K 140x 210x53 6500min qmn 114Xx104 5um 5 Temperature raise test results at grease Iubrication 109 NTN TECHNICAL REVIEW No 76 2008 3 6
80. 6 EE NTN 1
81. 50 1 1 1
82. 5 500 1989 1996 1000 S008 1913 90 700 Z 40
83. NTN 1 2 2 C gt
84. 1964 1990 522 AS Austenite Strengthening 3 24 3 9 2000 FA Fine AS 5
85. EHD 5 e SNR _FB e 6309 SNR S e NJ2 12 SNR FC GeCrMoV 18 M50 9 5 Comparison of rolling contact fatigue of test samples and actual bearings daN 1075 530 300 daN 1600 1200 MPa 4200 3200 3100 min1 1500 2200 1200 IS0 46
86. 1 6 13 100MO 2kV 14 12 Example of electrical pittind 13 Insulated bearing 14 schematic of insulated bearing 6 4
87. 3G SE 1 B A B i 4 Grease A Distribution of tested grease A in a bearing X 1 KA i 4 gt ry RW WW RW RW EE EE EE EE EE 5 Grease B Distribution of tested grease B in a bearing NTN TECHNICAL REV
88. CO2 CO2 3
89. 1 3 4 1 2 3 A B eS 6G08 40X 80X 18 6208 deep groove Dall Dearind 13 Property of inner and outer rings 208000MPa 0 3 7 8 3 Hz Character freduency 103 3D 4 Mode chart of inner rin9 A B 9
90. 5 Y 6 3 Y Result of evaluation test Y axis 5 0 m 0 1um 7 0 m 0 1 m 5 Y Difference of positioning accuracy Y axis before and after disassembly and transportation um 10 6 Y Difference of horizontal straightness Y axis before and after disassembly and transportation EE O
91. DN 46
92. 6 5 Iron particle sensor fixed tyDe 93 5 128 NTN TECHNICAL REVIEW No 76 2008 6 10
93. Electronic Journal 2007 LCD 007 LCD Development of Linear Changer with Built in Pasting Unit for Defect Repair System of Flat Panels Akihireo YAMANAKA Akira MATSUSHIMA NTN LCD CF CF
94. NTN 4 4 Initial model pasting unit NTN TECHNICAL REVIEW No 76 2008 CF R G B Bk 4
95. 3 3 4 3 1 Test mac
96. Z89 15 20 2007 6MW 3 4 2 10 30rpm 1500 2000rpm
97. 7 Property of antenna MHz 2475 2446 2450 50 dBi 2 1 2 1 5 EE 5 2 8 VSWR 8 10 VSWR 0C eh gh 2h 2h 8 Condition of heat cycle test 8 Changing rate of resonate frequency MHz 9 VSWR Changing rate of VSWR VSWR 10 Ch
98. NTN 1 1 1 1 2 1 2 1 1 1 1 1 2 1 2
99. lt i x 1 F i 1 Re NN 7 Arrangement of observation optical system and Initial model pasting unit 1 R G B BK 4
100. 59 6 40 120C CoOnditions Test 30mmX30mmXt1mm 400 40 10 30 70 100 120 MHz C 6 Relationship between temperature and dielectric constant 3 3 18 5C 3 4 7
101. 1 10 10
102. NTN 1 19 IEC 614000 1 Wind Turbines Part 1 Design requirements edition 3 2005 Germanischer Lloyd Guideline for the Certification of Wind Turbines Edition 20038 ANSI AGMA AWEA 6006 A0S Standard for Design and Specification of Gearboxs for WIind Turbines NTN TECHNICAL REVIEW No 74 2006 3 4 a NTN TECHNICAL REVIEW No 76 2008 NTN Sensor Units for Construction Machine Shoji ITOMI Hiroyoshi ITO
103. XY mWE PGI XY G10 3m gm Katsuyoshi SUZUKI sm Naoshi SUZUKI 10 NTN has deeply cultivated precision positioning technology and applied it to various types of positioning systems One of their major field of application is LCD manufacturin9 eduipments and NTN provides large sized and Iong stroke XY tables suitable for each equipments including NTN LCD repair systemSs This paper descriDes problems arising from glowing size of XY table and outline of the prototype gantry type XY table which meets coming SuDer Sized G10 about 3 m square glass SubstrateSs TV
104. JIS C6471 6 6 Result of dipping test in melted solder s 5 10 1 1 5 5 1 VSWR 18 25C 2450MHz 40mmx40mmxt mm VSWR Voltage Standing Wave Ratio
105. 10 10 8 2 4 1 10 10 10 Lis 10 oc 7 Zio 10 Zio 1 1 1 2 3 Lc i i Lio e
106. 0 UON SN NTN TECHNICAL REVIEW No 76 2008 O1 0 1994 1996 1998 2000 2002 2004 2006 2008 6 157 Increase In GrantS in Aid for Scientific Research
107. 1 TiN 1 11 280 1 11 TiN 111 3 TiN 1 11 0 56 1 W C Oliver G M Pharr An improved technique fordetermining hardness and elastIC modulus using load nd displacement sensing indentation experiments J Mater Res Vol 7 No 6 64 1992
108. G 1 1400 6000 3132 MW 2007 Capacity of aerogeneration NTN TECHNICAL REVIEW No 76 2008
109. HV 100HV Cr Mo V Al 32CrMoV 18 100 0 6 mm Al Ni P 3 9
110. 3 9 CAD 9 CAD CD R 2D 3D CAD CAD PDF WEB mt tecnos Cmt tecnos 1 CD H 5 FT a 19 FDDD 0 5 PF htPFs Techriicsl Fngrrladga Cfer Wb Soreteam m TECGHCS lmi TECHNCG FDOF ml TEHHECG PODF INTR WE kl 1 CD R Activated screen after installed CD R Uireiem BT Wat ei 199E ET GaDENAS GmbH Msbumg 99 NTN TECHNICAL REVI
111. 1 G LundDberg and A Palmgren IVA Handlinger 194 196 2 G Lundberg and A Palmgren IVA Handlinger 195 10 3 R B Abernethy The New Weibull Handbook oth edition CO06 chapter 6 1997 2098 5 8 N Luko SAE technical Daper series No 1 858 1998 6 L G JOHNSON The Statistical Treatment of Fatigue ExDeriments ELSEVIER 1964 16 E Tallian ASLE Trans 5 1962 183 8 B Snare The Ball Bearing Journal SKF 1970 16 9 1 7 9 197 569 10 22 5 1976 307 11 15S0 TS16281 2006 1 PC006 36 13 M Matsumoto and T Nishimura ACM Trans on Modeling and Computer Simulation 6 19886 88 14 41 2 IY 2 4 38 NTN TECHNICAL REVIEW No 76 2008 Research
112. gh 1 106 NTN TECHNICAL REVIEW No 76 2008 7T ULTAGE ULTAGE Series Large Size and Long Life Double row Cylindrical Roller Bearing for Main Spindle of Large Turning Machines ULEAGE NTN ULTAGE ee Naota YAMAMOTO ULTAGE NN30xxHSRT 7 PPS NTN has responded to need for improved efficiency reliaDility quality and environmental responsibility for machine tools by developing the ULTAGE Series of super high speed precisi
113. NTN 1918 90 For New Technology Network nHNODIHOOV RIE NAN NTN TECHNICAL REVIEW No 76 2008 Industry University Partnerships in R amp D of Machine Elements YoshitsuguKIMURA Professor Emeritus The University of Tokyo and Kagawa University Zr
114. 1 DN 4 DN 1 DN Composition of DN gel PAMPS PAAm 0 90 198C 13C DN CompreSSsion Droperty of DN gel a ou 9WH MPa os 10mmxt5mm nH 3 2 HC C N 0 OHzS 0 CH 8 a PAMPS Main monomer of PAMPS gel 1 HCS 6 NH H 2 b PAAm Main monomer of PAAm gel 0 H 0 2 H H H H C Crosslinking agent 4 Chemical structures of the materials 4 DN 4 1 5 DN
115. 2 K 2 J 88 3 850 C 10 20 30 40 50 NHs vol 1 NHs NH Relationship between addition rate of NHs gas and undecomposed NHs gas 3 SCM420 SNCM420 SUJ 1T 3 gp50 64X18 EL SCM420 SNCM420 940C SUJ 850C NHs C P 4 SCM420 5 SNCM480 6 SUJ NHs 0 2vol
116. 7 o 4 2 In this report several methods for both RCF life test design and result interpretation are introduced These methods generate results using random numbers followed by Weibull distribution The first method makes clear the relationship of arbitrary reliability between the minimum test numbers and the suspending time in fixed time test reduired at Lio and Lso lives This relationship is useful to maintain the qualitative reliability and avoid excessive quantitative testing The second method can clarify the relationship of arbitrary reliability between given test numbers and a resultant significant difference a
117. 1 3 F EM 4 Zn75x 104 FEM NReRIAIN 20 30 30 40 PPS 1 HSRT Old bearing design and new bearing design HSRT7 Type EE Drawing of the cage 2 1 1D 3 FEM NN3028K nmn75xX10 FEM analysis of deformation sie
118. 219 TMB 9 42O 3 2 1096 0 2 4 6 8 10 2 N14 22 29 a SUJ2 5 15 C N
119. 5 0 5 Principle of optical sensor 70 1 5 m Fes0s 7 6
120. 15mm 68 ii 1 Sensing apparatus for ceramic debris 5 5mm
121. 1 2 23 156 2007 4 NTN TECHNICAL REVIEW No 76 2008 Monitoring Method of the Deterioration of Lubricant kentaro NISHIKAWA TomomiISHIKAWA The monitoring of debris and wear particles in lubricating oil or grease is desired for early prediction of the failure of machinery components The state of lubrication can be estimated by monitoring the amount and size of the particles in lubricating material This paper describes the configuration and principle of the detection and shows experimental results 1
122. XY NTN XY 10 PC TV 1 10 3 000mm
123. TiN MQGS MQCJ
124. 5 95 i Lio io RE UN 6 Flowchart to determine test numbers on accelerated test 35 0 04 1 8 90 21 8 0 042 8
125. 1 8 TiN SEM m TiNN X 1 11 1 1 1 200 TIN
126. 5 5 Needle tip shape 30 300 m 1 4
127. 196C 1 596Cr 1805 1 1 12
128. 1 1 MQGS 3 MQGS 3 1 gan 190 MQGS 1 100mm DB 3 C 41C 380 1
129. 111 NTN TECHNICAL REVIEW No 76 2008 gt gt 0 10 1991 1993 1995 1997 1999 2001 2003 2005 3 Upsizing Of wind turbines 4 0 3 5 2 0 4 yE 1 5 lt 1 0 0 5 0 0 0 200 400 600 800 1000 1200 mm 3 Wind turbine capacity and bearing size 3 3 EC GL 3 ISG0 IEC GL 17 5000 20 S 0 nmn A 60n 2 1250 mm aiso
130. gt 0 0 1 DN 0 4 4 mRa SUJ 0 1 DN SUJ DN zz 4 3 2 7 5C 50C 80C DN 0 05 1 mRa S5C
131. 1 29 2004 52 1 73 84 S004 3 GDC 1999 Ikeda F Arai Fukuda K Irie gnd M Negoro Three Dimensional Photoelastic StresS Analysis on Patient ailored Anatomical Model of Cerebral Artery Proc S004 Int Symp on Micro NanoMechatronics nd Human Science 145 150 2004 5 44 3 278 284 2008 6 16 61 62 2007
132. UP 1 500mm s 34 0 3G 0 5sec 1 500mm s UP Linear Servomotor with iron core 4 Coreless Linear Servomotor 10km 3 Y
133. S9 FA 6 1 2 109 0 10 20 30 20 2 22 b SUJ2 4 Relationship between retained austenite and rolling contact fatigue life NTN TECHNICAL REVIEW No 76 2008 a 5 without carbonitriding with carbonitriding 4 5B SS 3 nn Steel A SUJ2 B Si Cr steel Test bearing 6206 C High Si Cr steel Test load 12 25kN D Si Mn steel Rev speed 2000rpm E High Cr steel Ratio of 109 life b Steel A SUJ2 Test bearing 6206 B Si Cr steel Test load 6 86kN C High Si Crsteel Rev speed 2000rpm D Si Mn steel Dust hardened steel beads E High Cr steel 104 177 uum
134. 10 1 G1 Thermal analysis Estimaed temperature distriDution 4 9 CAD G CAD ULTAGE
135. 20 0 01 57 NTN TECHNICAL REVIEW No 76 2008 HB V1 VO 150mmx 150mm lt 230mmx230mm 1 lt dmm RFID 100mm x100mmxt6mm 1 G 1 RFID Patch antenna of developed material for RFID nabla ar tT dan a 2 The developed material sticked on curved surface TE HIT 3 4 Example of cylinder molding of the developed material 1
136. 1 0 1 1 0 1 a 6 US Es H 001 2 0 001 00000 LLL LUL1L LU IL 1 0 0 5 1 1 5 2 Fee0s wt9 6 Optical transparency of test grease _O A amp B 0 0 5 1 1 5 Fe wt96 7 Optical transparency of used grease 3 8 2 4 QO CU 8 Test bearing with sensor unit 4 0 4mm A A
137. NTN 5 6 1 5MW 40 600B 600X 870 7 mm 8m s 16m s 5 NTN NTN NTN NTN 5 SDherical roller bearin9
138. 2 39206 le 1 1 1 LE C A 1 A A 4 1 Forward rotation of two input type direction change unit 1 1 2 2 COB 2 Reverse rotation of two input type direction change unit 27 NTN TECHNICAL REVIEW No 76 2008 3 1 3 1 1
139. 10 98 6 500 Li 5 00 e 10 9 2 6 e 10 98 500 6 6 1000 6 3 0 9 1499h 6 90 1498g 148g 90 500 14989
140. 6 2007 2007 007 1 9 5 030 55 58
141. 1 1 1 The example of attachment of an angle sensor 2 AC DC AC DC
142. JIMTOF2006 9 BNFS 1 SE 1 dmn 190 MQGS Minimum Quantity base oil of Grease Supply 88 EE MIQGS MQGS MQGS 1 MQGS
143. Vol 93 No 1 00 5 8 5 8 005 NTN TECHNICAL REVIEW No 76 2008 32CrMoV 13 Deep Nitrided 32CrMoV13 Steel for Aerospace Bearings Applications Daniel GIRODIN 38CrMoV 189 AMS 6481 600 m
144. 1 8 TiN m W Nc 1 AIP Principle of Arc plasma Ion Plating apparatus 1 NTN TECHNICAL REVIEW No 76 2008 48mm 7mm SUS440C 0 005 mRHa 1 Conditions of TiN film coating eu ge TiN 150 30 TIN 6Pa 150 30 TiN 100A 100 30 TIN 200A 200 30 TIN 100V 150 100 TIN 300V 150 300 3 3 1 NTN NTN Schematic drawing of NTN Savin type wear test rig NTN Conditions of Savin wear test SUJ
145. NTN IECHNICAL REVIEW NO 20024 6 MQCJ NTN TECHNICAL REVIEW NO 74 2006 4 cA ha SH NTN TECHNICAL REVIEW No 76 2008 7T 3D 3D Electronic Catalog Introduction for Precision Bearings of Machine Tool UAGE Takehiko UMEMOTO CAE 3 mm 3 CAD 3 CAD Machine tool makers use 3D CAD data in CAE to reduce development period to move forward advanced analysis which is thermal analysis of each parts and structural analysis for high precision In this document it is introduce
146. DN 3 3 DN S20 Schematic drawing of polymer structure of chemical gel 3 DN Schematic drawing of DN gel ll vv v DN 10 50MPa DN 10 100
147. No 1 74 DD 4 11 2003 No 188 4 DD 19 1 12 2003 ULTAGE NTN IECHNICAL REVIEW No 74 DD 16 13 2006 dqmn 170x104 BNG NTN IECHNICAL REVIEW NO 5 pp 26 3 1 NTN TECHNICAL REVIEW No 76 2008 Friction Properties of Polymer Gel with High Mechanical Strength 1 gm 1 PE ER Ei wg U qp U Ct mm em nde a Eiichirou SHIMAZU Masaki EGAMI Takayuki KUROKAWA Jian Ping Gong mt gt iM 2 3
148. 192 24 3 S004 5 2 44 70 240 67 693 26 ir PR _ 4 2 Example of aerogenerator 182 176 82
149. 500 550 C 32CrMoV13 24 3 1 AMS648 1 32CrMoV13 MS50NIiL 1 1 AMS6481 32CrMoV13 M50NiL Chemical composition of 32CrMoV13 as per AMS6481 and M50NiL 3 30 Mo V Mn OMMOSAIIOMI5STIO40 1 20 0 35 0 70 4 00 00 08 0 15 4 50 1 33 0 35 4 25 32CrMoV13 2 80 AMS 6481 M50NiL M50NiL Ni 3 20 3 60 Ue 0 15 VIM VAR
150. 1 3 1 3 1 G 1 3 1 3 1 3 1 1 3 1 3
151. NTN 1990 FPD FPD FPD TG LCD OE BU XSUS5UIIT LCD OF 0 7mm LCD CF LCD 1 TFT CF
152. 1 N1014 5 35000 min gan 3 5 60 70C 60C 7 m _ C 5 1 35000 min Calculated radial deflection and maximum hoop stress of inner rind due to heat and centrifugal force Object bearing Ref Fig 1 Rotational speed 35000 min NTN TECHNICAL REVIEW No 76
153. 1 Booser E R 1974 Grease Life Forecast for Ball Bearings LuDricatiOn Engineering 30 DD 536 54 1 Booser E R and Baker A E 1976 Evaporation A FaotOr In Ball Dearing Grease Life NLGI Spokesman 40 DD 60 65 3 Bailey W W and Pratt S 1982 Dynamic Uxidation StabDility of LuDricating GreaseS NLGI Spokesman 46 pp 15 18 4 Kawamura T Minami M and Hirata M 2001 Grease Life Prediction for Sealed Ball Bearings Tribology Transactions 44 2 DD 256 262 2001 NTN TECHNICAL HEVIEW No 69 pp 76 8 1 6 2007 576 vol 46 No 1 1 DD 4 46 2004 ME 1 NTN TECHNICAL HEVIEW No 72 pp 20 5 5 44 8 G005 NA 04F NTN IECHNICAL REVIEW NO 9 pp 66 1 9 2007 INA103A NTN IECHNICAL HEVIEW No 5 pp 116 15G 10 2002
154. 9 10 SNCM420 SCM420 SCM4 0 2000 1800 SCM420 1600 e s SNCM420 cE 1400 1200 1000 800 600 400 33 200 0 0 1 0 2 0 3 0 4 0 5 0 6 mass 12 Relationship between nitrogen concentration and specific wear amount under water lubrication 21 6 SBUJ
155. G Section view Of Spindle test rig 0 5000 10000 15000 20000 25000 30000 min 3 High speed operation test results with various Cade guiding typeSs Pe 3096 40
156. 1 126 1 Summary of Direction change unit kll0U Na 2 62 1 II ahDNSNAIA lll 20 251 2 a 26Xx P8mm 30x 44mm 1 1 3 3 1 1 1
157. CF ITO CF T a TFT TFT 1 LCD LCD structure figure CF The defect of CF panel ll 3 G3 Color filter repair System 3 1 CF NTN 30um 300 um
158. 8 7 Schematic of wear test rid Test condition of wear test SUJ2 60 HRC 40 R60 0 01 umRa 50N Pmax 0 49GPa 0 05m s 24rpm 60min 180m VG2 lt 2 CN 3 0 1 0 2 0 3 0 4 0 5 0 6 mass 8 Relationship between nitrogen concentration of surface and specific wear amount under oil lubrication X
159. 1 CAD 3 CAD i 11 3 12 102 11 Angular contact ball bearing with spacer
160. 10 7 Metallurgical and dimensional properties Of deeD nitrided Darts mm 0 63 0 75 0 62 0 72 mm gt 0 55 0 55 0 65 m lt 35 20 30 HV0 5 750 850 760 830 HV0 5 360 420 380 420 um mm 0 7 0 9 10 Example of aerospace bearings NTN TECHNICAL REVIEW No 76 2008 6 32CrMoV13 AMS 6481 32CrMV13
161. 10 7 23 31 51 7 63 68 80 88 94 99 107 111 118 126 132 136 142 144 NTN TECHNICAL REVIEW No 76 NN Industry University Partnerships in R amp D of Machine Elements Yoshitsugu KIMURA Professor Emeritus The University of Tokyo and Kagawa University Elemental Technology Trends of the Material and its Heat Treatment for Rolling Bearings Contribution Hirokazu NAKASHIMA Improvement of Wear Resistance by Heat Treatment for Carburizing Steel Nobuyuki MOURI and Kazuhiko TAGUCHI Deep Nitrided 32CrMoV13 Steel for Aerospace Bearings Applications 23 Daniel GIRODIN Rolling Contact Fatigue Life Test Design and Result Interpretation Methods Maintaining Compatibility of Efficiency and Reliability 31 Takumi FUJITA Research of Grease Lubrication Mechanism for High Speed Bearings ag Takayuki KAWAMURA Friction Properties of Polymer Gel with High Mechanical Strength 45 Eiichirou SHIMAZU Masaki EGAMI Takayuki KUROKAWA and Jian Ping Gong Study on the Effect of Physical Properties on Wear Resistances of TiN Films Coated by Arc plasma lon Plating 51 Hideyuki TSUTSUI Development of Antenna Material Based on Rubber Which Shows Flexibility and High Impact Strength Kouya OOHIRA Development of Sensing System for Cerebral Aneurysm Treatment 63 Yoshitaka NAGANO and Hideo FUJIMOTO Monitoring Met
162. 1 10 3 MM 9 Engineering test satellite V KIKU No 6 Ne204
163. 2100 1499 6 1 i eg 1000 P 90 1
164. a Nozzle outside Surface ridind b Roller riding c Inner ring land riding a A or 1 i Ry A ms Er 2 ooo d Outer ring land ridind 1 Cage guiding types 81 NTN TECHNICAL REVIEW No 76 2008 9
165. 22 NHs 1 17 AS NTN IECHNICAL REVIEW No 6 65 1998 3 SWR NSK Technical Journal No 6 1 30 2001 4 SUJ2
166. 2
167. CF R G BB 136 CF ON OFF CF CF LCD CF 2 CF
168. 1 2 19898 1 8007 1 Nacelle 126m 5MW BTM Consult ApS 2005 1 28MW 2 006 1 42MW 2007 1 49MW 3
169. MC MC PEEK PPS RR 1 107 NTN TECHNICAL REVIEW No 76 2008
170. C 6 10000 20000 30000 40000 50000 min kW 50000 0 10000 20000 30000 40000 min Temperature difference between inner and outer rings and comparison Of power loss amondg lubrication typeSs 4 1 MQCJ NTN TECHNICAL HEVIEW 74 2006 82 85 MQCJ 74 6 G008 539 542 V 1 H B CVJ HH B CVJ
171. 0 01 25C 0 06 m min a 0 005 mHa Surface roudghness of mating material 0 005 mRa 655C 2 0N 4 9N 9 8N EN 24 5N iu FE 0 _ 2 4 6 8 10 12 m min b 0 05 mRa Surface roughness of mating material 0 05 mRa 0 08 25C 0 07 e 2 0N 0 06 F 4 9N 9 8N 6 005 24 5N KR K 0 04 0 WmN 9 m min C 0 4 mHRa Surface roughness of mating material 0 4 mRa 6 DN 1 Friction properties of DN gel Part 1 0 05 mRa s 2 0N 0 06 4 9N 98N 24 5N NR 0 i 2 4 6 8 10 12 m min a 65C Test temperature 25C
172. NHs SCM420 SNCM420 SCM480 1 mass Component table of test sample SCM420 SNCM420 Carbonitriding 940C 1st quenchin9 2nd quenching Tempering 2 SCM420D SNCM4A420 Heat pattern of SCM420 and SNCM420 Carbonitriding 850 C Temperin9 SU Heat pattern of SUJ2 q q SCM480 Cr 6 SUJ2 4 5 5 N mass26 NNNIIONIOMMAM2 2 84 0
173. e 5 000 47 UP AT CVT 6096 148 gt e a
174. N S High Low 3 High Low N S 1 High Low A B 90 3
175. 1 LCD RGB 5 CF CF 4 3 1 1 11 Linear Changer with built in pasting unit EE 1 3 2
176. 9 709 139 1 A i a b 1 W a b 2 9 Ink pasting process comparison 4 1
177. 0 5 0 6 E a ul lt EE 8 g gw 8 8 gt 8 3 A a AN TN lt 2 2 2 2 2 2 FPF F 3 TIN Specific wear rates and friction of TiN films vv 9 4 Cr TiN 6Pa 4 35 36 37 38 39 40 41 42 43 44 45 E R 0 283 5 TIN X X ray diffraction XRD patterns of TiN films x GPa HP 4 Relationship between hardness and specific wear rate 111 5 6 111
178. 1 3 1 Forward rotation of one input type direction change unit _ D 4 2 AA _ op 1 ON 4 1 Reverse rotation of one input type direction change unit 28 4 NTN 5 6 5 6 1 5 1 NTN Test condition of Endurance test Test condition of NTN 1 8 8 1 a 0 Il a
179. 8 9 0 05N OH RS BR 0 0 0 0 2 0 4 0 6 0 8 1 0 N 8 Input force and bending value 12 1 0 lt 0 8 a 0 6 NQ 6 Ph 0 4 IN 0 2 0 0 0 0 0 2 0 4 0 6 0 8 1 0 N 9 Calibrated sensor output 66 4 10 4mm 3mm CCD 11 1 2
180. 3GD a ULTAGEe e ZS 10 2007 MQCJ Minimum Quantity and Cooling Jet
181. e e e 2 a 144 V 12 e 30 e 145 OKm h F a
182. 1 a 3 9 PEEK 1 a 1 D 1 C 1 d 5S BNTO08 2
183. 1964 1880 5ppm 1964 10 II Q Bearind steels 1 1 Oxygen content ppm Low alloy carburizing steels 0 1965 1970 1975 1980 1985 1990 1995 2000 2005 Year 1 The trend of oxygen content in steel 100000 FA 9 lt a 10000 5 EN O 5 9 EET be PAY 2
184. 40 I 6 6202 15mm 35mm 620 1 3 40 1280 7 ji ss 6 Sectional MEW Of integrated high resolution sensor bearind 4 3 External view of integrated high resolution sensor bearing N S N S N
185. SGUJ2G SUJ SCM420 2
186. 1 Comparison between stress analysis and heat transfer analysis ET dr 9 4 75 2
187. 1 60 60 60 Nn NI EN EE LN 40 40 40 20 20 20 0 0 0 A B SE 1 A SE 1 A B SE 1 1 3 Grease life at high speed and room temperature Grease life at high temperature Grease life at room temperature EE A B 5 5 5 SE 1 6 6 6 X
188. 30 000mS lt 5 1 12 000 m NTN For New Technology Network AH NTN TECHNICAL REVIEW No 76 Te 32CrMoV193 SNR Elemental Bearing echnology Daniel GIRODIN
189. 5 70C gan 300 dam 325 PEEK PEEK
190. 50nm 4 4 0 55 0 75mm 7 30 830HV30 75 u mM 4 Modification of mechanical properties after ageing 375 1050 5S 140 0 65 373 1200 995 15 5 00125 373 11195 985 16 145 356 1150 945 16 155 0 70 0 80 450C 100H 550C 100H 27 36CrMoV 13 7 M50NiL 32CrMoV 1 3 M50NiL 450C 100
191. LED LED pd 128 400dpi 63 m pd pd LED 2 6 Optical system of the force sensor X XXAX pd 7 Conception diagram of wire position detection NTN TECHNICAL REVIEW No 76 2008 4 4 1
192. A 10 1 1 EI OA Improvement of grease endurance ability for high speed bearing at room temperature 11 10
193. 1 50 MQCJ 40 MQCJ 5L min 35 5Lmn 0 5mL 10min 30 25 IO 5 10 15 20 25 30 SS 40 45 50 X108min 9 Outer race temperature 4000 F MQCJ c 3500 MQCJ 2 5Lmin 3000 2500 2000 2000 500 1ooo 500 0 i 5 10 15 20 25 30 35 40 X103min 1 11 Amount of oil that passes in b
194. AMS 648 1 32 CrMoV 13 Mechanical properties of 32 CrMoV13 compared to the reduirements of AMS 6481 UTs KV MPa Rp 0 2 MPa J 920 98901620 990 5 68 3 32CrMoV13 M5ONiL Comparison of main mechanical properties of 32CrMoV13 and M50NiL carDurizing steel Rp0 2 TI A 107 cycles MPa 6 Wan MPa 32CrMoV13 M50NiL 16 5 So 750 32CrMoV13 y Fe4N e Fes sN 9 Rise ER 0 6mm
195. Flowchart to design test number in fixed time test 0 0012 0 001 0 0008 0 0006 Probability 0 0004 0 0002 0 1000 2000 Time h Zio 500 e 10 9 Weibull probability density distribution for Lio 500h and e 1079 3000 4000 NTN TECHNICAL REVIEW No 76 2008 gt G oo 5 ms O _0 1000 2000 3000 4000 Time h 3 Lro 500Oh e 10 9 6 Cumulative probability distribution to estimate suspending time prior to failure Required Lio life 500h e 10 9 Test number 6 3 4 3 1 5G00 6 1489 3G000
196. 1 1 Dominant parameters of coating conditions on hardness of TiN film 0 560 0 316 2 0Ea 0 692 111 111 10 1 11 Relationship between estimated data by multiple linear regression and experimental data of peak strength of 111 crystal face in XRD pattern of TiN film GPa GPa 11 Relationship between estimated data by multiple linear regression and experimental data of hardness of TiN film NTN TECHNICAL REVIEW No 76 2008 iN 1 11 1 11 9 TiN
197. HB VO 12 Fire retardancy of test specimen ct 122 3 HB 40mm min V1 30 VO 10 NTN 4 20 VO 150mmXx 150mm
198. NTN TECHNICAL REVIEW No 72 2004 6 10 3 MQCJ NTN TECHNICAL REVIEW No 74 2006 4 dmn 170xX104 BNSG NTN TECHNICAL REVIEW No 74 2006 6 5 NTN TECHNICAL HEVIEW No 74 2006 6 NTN CAT No 2860 J 74 93 NTN TECHNICAL REVIEW No 76 2008 MQCJ Minimum Quantity and Cooling Jet Lubrication Single row Cylindrical Roller Bearings Futoshi KOSUGI Susumu NOJIMA NTN MQCJ MQCJ
199. e 10 9 1000 e 10 9 10 15 14 eg 10 0 2 20 0 1 e 10 0 Cumulative probability of failure Life Loading Cycle 13 Pmax 5 88GPa Example of RCF life test result Point contact Pmax 5 88GPa 6 lower limit s upper limit
200. 1 3 000mm 3 500mm XY
201. NTN NTN 4 Recent construction machines use a lot of electronic controls and it is expected that a greater Variety and more advanced technology of these controls will be used on construction machines in the near future NTN currently Supplies a wide variety of sensor units for construction machine applications that SUDDOrt operation accuracCy efficiency and ease of maintenance This report introduces 4 types of sensor units that NTN has developed NTN c 1 4 1 1 NTN NTN sensor units NTN RP
202. 1971 1979 1897 00 S003 S003 2005 005 1984 19891 19891 003 The 2003 Tribology Gold Medal NTN TECHNICAL REVIEW No 76 2008 Trends of the Material and its Heat Treatment for Rolling Bearings BHirokazuNAKASHIMA Focusind on the steel for rolling bearing materials the tec
203. 4 50C 339 11C 6 5 5 1 Analysis result of pre tuning 4 Comparison between test data and analysis data 28 4 32 8 27 4 5 2
204. 1 1 1 3 sc LY op ee 1 e a y 3 3 9 io 7
205. DN 8 DN SUJ DN SUJ amp 2 a gt 2 gt 0 DN P a az DN SUJ2 8 _ DN Hydrodynamic Iubrication model of DN gel NTN TECHNICAL REVIEW No 76 2008 DN A4A DN 8 g kz UA 2 P
206. ASTM A 1980 Ba 57 NTN TECHNICAL REVIEW No 76 2008 2 9 3 20kHz
207. A 1 T B 1 39 NTN TECHNICAL REVIEW No 76 2008 SE 1 1 G A SE B A lt B SE 1 1 a 1 Tested greases
208. XY XY ne BE a X 0 1 umm 4 1 8
209. 7 1 10 i i e 1000 io 1 10 P9 6 10 P92 4 Flowchart to estimate Lio life from suspending time prior to failure A 3000
210. Technical Trend of Bearing of Wind Turbine Souich YAGI Nobuyuki NINOYU The wind turDine denerating System which emits no carbon dioxide and utilizes natural enerdy IS remarkably growing industry And now it iS in the new stage of upsizing and performance enhancement which is represented by the large scale wind farm in the off shore This paper is to introduce technical trend and special characteristics of bearings for wind turbines which are one of the most important components of wind turDines 1 NTN 3
211. II ww 1 mm 2 c9297 3
212. 60um 8 TiN SEM SEM image of TiN film surface 111 220 4 4 9 TiN 1 1 1 220 1 1 1 4 Dominant physical properties on wear resistance of TiN film in multiple regression analysis 111 200 X1010mm3 Nm X10190mm3 N m 9 Relationship between
213. 7 Comparison of rotational signal of standard sensor and high resolution sensor 4 NTN 6 5 24 4 1 8 6
214. 1 80 DN 5 3 DN DN 2 2 PAMPS PAAm DN MBAAm DN
215. Relationship between peak strength of 111 crystal face TIN in XRD pattern and specific wear rate of TiN film 5 ee X 5 0 TIN 1 1 1 200 6 1 1 1 7 200 1 11 0 432 200 0 429 200O 7 200 Relationship between peak strength of 200 crystal face
216. 3 128 9 Confirmation in 3D CD R 3 13 6P08 40 X 80X 18 3 1 5
217. Ceramic inner ring and its ring spacers 50 100mm mn 00 5 m SO0 30 um 1 We 1 5 SisN4
218. e NN MnsS ANNI TTT TMNTTTTTT 30 40 50 MnS elT C MoSs Pb
219. 15 StreSS distriDution of housing 16 1 1 16 Stress distriDution of housing 17 18 17 Deformation volume of housing from upper side 18 Deformation volume of housing from under side 2
220. 2004 12 2G006 2006 12 NTN TECHNICAL HEVIEW No 72 2004 NTN TECHNICAL REVIEW No 72 2004 NTN TECHNICAL REVIEW No 76 2008 MQCJ Minimum Quantity and Cooling Jet Development and Practical Application of MQCJ Lubricated Angular Contact Ball Bearings for Machine Tool Main Spindles Masatsugu MORI Yoshinobu AKAMATSU Mineo KOYAMA Futoshi KOSUGI and Hiroshi TAKIUCHI 1 MQCJ MQCJ
221. Effect of grease thickener to oil flow toward a rolling contact area 43 NTN TECHNICAL REVIEW No 76 2008 100mm IM 5S 2LA BNSO20LLB 0 10000h 0000h 11000min gm140 3 2 kN EE I 50mm LA BNS010LLB 17000min ganm110 1 4 kN 30mm 55 U06ADLLB IE 25 12 SE 1 Technical Review No 75 P 29 27000min gam115 0 53 kN Endurance ability of SE 1 grease with machine tools bearings SE 1 18
222. Lc 2 Lc 3 1000 7 1000 Lis 1 0 04 1 8 5 959 6 i 1 3 e 7 6 7 1000
223. MQGS 0 05 0 1mm 5 0 05 0 1mm gn 190 gn 150 2S 2
224. 5 4 change of lubrication space NTN TECHNICAL REVIEW No 76 2008 5 _MQCJ MQCJ lubrication cylindrical roller bearings 2 3 1 6 N1011HSR
225. 280 m 4 NATO 0156 6500 MPa 32CrMoV 18 M50 M5ONiL 6 32CrMoV1 3 00 M50 M50NiL 32CrMoV13 5 380 420HV 150mm 70 SNR 3eCrMoV 13
226. 0 341 a 6 10 0 668 TiN 1 11 8 4 5
227. 2007 As the antonym of high technology significance of matured technology is discussed of which technology of machine elements provides an example The roles of universities in handing down technologies between generations and in clearing the hurdle in front of a front runner are Dointed out and possible ways for fruitful partnerships between industry and universities are discussed 1 1918 NTN 90 90 1
228. GO006 No 06 1 2006 417 3 AIP TB N G007 9 147 4 AIP TiN GO008 5 187 5 G008 5 219 NTN TECHNICAL REVIEW No 76 2008 Development of Antenna Material Based on Rubber Which Shows Flexibility and High Impact Strength Kouya OOHIRA NTN LAN RFID UWB NTN has developed the antenna material bas
229. 14 7 14 Analysis example NTN TECHNICAL REVIEW No 76 2008 30 X 1 1 15
230. 47 1980 33 39 1 1985 48 D P Koistinen Irans ASGM 5 19864 58 1 K MAEDA H NAKASHIMA N TSUSHIMA ITC YOUKOHAMA 1995 188 NTN TECHNICAL REVIEW 63 19984 193 NTN TECHNICAL REVIEW 65 1994 1 NTN IECHNICAL REVIEW 1 2008 6 Vol 37 10 1998 888 NSKTechnical Journal656 1989 1 8 K Tamada and H Tanaka Wear 199 1996 245 2S9 CAMP ISIJ Vol 15 2002 1016 30 Koyo Engineering Journal 150 1996 16 31 Vol 10 7 2005 27 32 CO005 21 33 NTN TECHNICAL REVIEW 69 2001 61 34 Vol 93 3 2007 0 13 14 15 16 17 18 19 20 1 8 9 4 0 7 a NTN TECHNICAL REVIEW No 76 2008 ML
231. 9 Sanyo Technical Report Vol 14 1 2007 22 3 1993 4 75 1989 1897 5 71 1985 893 6 G001 159627 2001 NTN TECHNICAL REVIEW 68 2000 58 8 CAMP ISIJ Vol C0 200 1353 9 Vol 88 10 2008 643 10 11 19 419 16 1 1 23 1984 50 12 NTN TECHNICAL REVIEW 63 19984 89 NTN IECHNICAL REVIEW 68 2000 5 1 Vol 37 6 1998 516 Vol 41 3 1995 19 NTN TECHNICAL REVIEW 65 19986 9 H MURO Y SADAOKA S ITO and N ISUSHIMA Proc 1 th Japan COngresS on materials research METALLIC MATERIALS 3 1969 4 G6 197 71 1
232. Analysis result of post tuning lt wD CD 5 32 0 27 2 13 A B 28 5 C 27 7 31 3 32 2 27 0 27 5 27 4 01 J CK 34 5 28 4 2 D E 29 6 399 42 3 E400 1 03 H 50 3 55 8 50 2 6 01 Ee 50 7 SS 50 0 0 7 E CE 36 6 46 8 37 4 41 3 35 6 gt F HH 5 3 Compared points between test data 11 78 and analysis data il O 60 50 40 30 6 Analysis result with wide SDacer 5 Comparison between test data and analysis data with wide spacer A 27 3 27 3 0 0 0 1 0 6 79 4
233. EPMA 5D 1 6 500 um 600 700 m 30 m Fea sN g Fe4N y 4 70 80 m 5a e 100 m e
234. 1 MQCJ MQCJ Ilubrication system 2 MQCJ MQCJ lubrication angular contact ball bearing 9 3 change of lubrication space 3 4
235. e 10 9 10 Diagram to estimate the minimum differences of Lio and Lso lives with respect to accelerated test results of 2 lots e 10 9 Test number 10 5 e e e e e 13 Pmax 5 88GPa e 88 10 9 9 8 212 e e 14 e 5 835
236. 1 A Grease A Grease B SE 1 WW EA 2 mem gt 0 250 500 750 1000 7 hn 7 8 Oil flow model on a raceway of bearing outer rin9 Oil flow with grease film treatment on a slope plane 42 mi vv 4
237. 11 a b 35000min 3C qmn 325 C _ 0 10000 20000 ag Inner and outer ring temperatures of developed Dearing with steel rollers and benchmark bearing 30000 40000 min C 0 10000 20000 30000
238. MQCJ 1 MQCJ MQCJ 1 8 1 2 2 MQCJ MQCJ MQCJ amp 94 I MQCJ
239. Driving time and amount of base oil delivery EE MIQGS 3 100mm 70mm 50mm 6 3 0 07mm 47g 41C 38C C 4h 200h 7 6 Sketch of model test rig for base oil delivery 3 Test conditions of model test rig for base oil delivery 100 mm 70 mm 50 mm
240. PEEK DN 6 DN 1 J P Gong Y Katsuyama T Kurokawa Y Osada Advagnced Materials 15 14 1155 2009 K Haraguchi T Takehisa Advanced Materials 2 1 0 EOOP 3 Y Okumura K Ito Advanced Materials 13 485 C001 4 J P Gong G Kagata Y Iwasaki Y 0sada Wear 251 T1183 2001 5 M Huang H Furukawa Y Tanaka T Nakajima
241. HG0mm Hv 784 0 01 mRHa 50N 0 5GPa 0 05m s 3min 9m 0 60 RH N TIN 3 NTN TIN 5 TIN
242. MQGS HSE 9 4 8 a HSE 8 D HSE MQGS dmn 190 MQGS MQGS an 190 HSE MQGS 4 High speed test conditions 0 07mm 47g 0um 1 C ISO VG 32 0 03 mL 1 5 min 40NL min 0 m 1C NTN TECHNICAL REVIEW No 76 2008 Air oll 8 a HSE Section view Of HSE type 4
243. 10 2 3 911 1980 1990 i Si Mn Ni Cr Mo V 2 se etd poate a Weighted regressi
244. 3 1 3 3 1 3
245. SNR A 32CrMoV 19
246. 1800rpm wt 4 6 h 10 Experimental result 1 T4 T4 wt 0 100 200 300 h 11 Experimental Result Ti Ts NTN TECHNICAL REVIEW No 76 2008 1 0 04wt96 12 12 b 10 Ts 12 c 100
247. 0 05 mRa 2 0N 4 9N 9 8N 24 5N 0 i OO Ol 0 2 4 6 8 10 12 m min b 50C Test temperature 50 C 0 05 mRa Ea e 2 0N S 1 4 9NI 98N EN KS NR 0 i 2 4 6 8 10 12 m min b 80C Test temperature 80 C 7 DN 2 Friction properties of DN gel Part 2 49 0 01 5 DN SUJ 1 10 DUN
248. 2MW 1 gt
249. WWW hkd metl g0 jD hOknS WDp_enquete WD_text Ddf 005 10 pp 14 16 2006 11 5008 WWW IDSS gO JD SVOUShIka tOohkeI PODular PODpular O008 asp chap 0 C008 1 1 6 4 2O08 13 vol 56 no 4 pp 328 335 2004 14 18 WWW mext gO jD d_ITmenu ShinKOu Sangaku Sanggak ubD 0 088106 htm 008 15 1986 16 WWW jSDS gO jD grantsinaid0 U1_seido 01_shumoku index html suii U0 17 WWW SCI gO JD a Info kOhyo 1 htm 1 706z html T1999 gt 1959 1966
250. 1 5 1 393 3 X 3 5 4 3 1mm 0 3mm
251. 10 NF 1 3 17 3 1 3 2 6 2 1 3 1 3 1 3
252. 13298 3 CAD 3 CAD NTN TECHNICAL REVIEW No 76 2008 3 CAD 6008 JIMTOF2008 24 10 30 1 1 4
253. 5 10 1 5 11 10 High load capacity cylindrical roller Dearings 11 5 Comparison of structure NTN TECHNICAL REVIEW No 76 2008 5 1 5MW 150mm
254. Improvement of Wear Resistance by Heat Treatment for Carburizing Steel Nobuyuki MOURI Kazuhiko TAGUCHI The bearings for guide rolls of continuous casting machines of steel manufacture have wear on Outer ring because the bearingS are used at low rotation Speed and high load Therefore it is necessary that outer ring of guide roll Dearing has high wear resistance Carbonitriding IS known as a popular effective treatment to improve wear resistance Actually the carbonitrided Dearings are used widely for 9uide rolls of continuous casting machines In addition it is possible to improve wear resistance more by usind special steel that includes Cr and V as elements forming nitrides However the use of special steel will connect to the problems that are the difficulty with acquisition and high material costs This study is meant to improve the wear resistance for standard carburized steel so we have investigated quantitatively that wear
255. 9 9 139 NTN mn 1 70 SE 1 A B SE 1 3 1 1
256. For New Technology Network NTN HEDHNIDA REVIEW October 2008 a ISSN 091 5 0528 OSAKA JAPAN 1 NTN 2008 1 1 12 000mF NTN SSB
257. SE lt A A A 9 A 4 1 B SE 1 Grease GreaseA Wt 500 750 1000 h 9 Oil flow with oil film treatment on a slope plane
258. 13 SUJ SCM420 2 SUJ2 SCM420 90min 15 30min 5
259. 2 5Lmin 0 02mL10min 5 1 1 20 25 0 SS 1038min 7 Outer race temperature 40 45 50 96 6 Schematic construction of test spindle MQCJ 2 5L min 2 5L min 61 0 02mL10min kW 4 0 5 1 15 20 25 30 35 X103min 1 8 Power loss 40 45 50 cy 0 WCGC rm 335 VG32 0 0 mL 10min MQCJ MQCJ 11 MQCJ
260. pH MIG G 9 ey Fa
261. 1 400 480HV 6G55C 5 gt 100 2 100 380 420HV 625 650C 555 C 50h 555 C 50h MD 0 7mm 0 5mm NN gt Q i 360 380 400 420 440 460 480 HV10 32CrMoV 13 Hardness of 32CrMoV13 base metal before and after different nitriding treatments AMS 648 1 G 32CrMoV183 M5O0NiL 3G2CrMoV138 M5ONiL M5ONiL
262. 3 Maximum contact stress and reduired life MPa Lo 1300 30 000 1650 40 000 1650 80 000 1450 100 000 100 000 8 Analysis example of planet gear 1 LU 19 Ne RA RA 2 Ns 9 4 Load distribution of each 4 row 8 9 4 4 NTN
263. 3 C 886 2hi 41 C 2h 200h 9 0 5 0 4 0 3 0 2 0 1 0 100mrm Umm 50mm Bore diameter and amount of base oil delivery 100mm 70mm 50mm 50mm 100mm 509 6 23 5g 47gx0 5 4 MQGS 100mm G 3 4 1
264. 4 YY Y 2 ao Endovascular coil embolization of cerebral aneurysm 1 RI G Treatment by embolization colil 64 I Y 5 Y
265. 40 80 1250C 1000 NTN TECHNICAL REVIEW No 76 2008 3 Condition of aging test C h 30mm x 30mm xt2mm 40 80 120 0 250 500 1000 4 Test conditions MHz 30mm x 30mm Xt2mm 400 h 7 Relationship between aging time and dielectric constant 4 4 1 5 1200 5 Mechanical properties of test specimen 2 MPa 9 JIS A JIS K6268 JIS K6251 JIS K6251 JIS K6253 0 1 0 4 5 290 47 600 2 8 6 1 150 90 900 9 2 5 5 110 92 1200 3 6 7 8 75 94 60 4
266. 7 1000 io 5 95 Zio 1 1 0 1 9 Flowchart to estimate the minimum life difference with reSDeCct to accelerated test results of 2 lots 11 1 1 85 10
267. Grease A Grease B SE 1 2 mm2s 40 C 22 280 Test conditions 3 A B SE 1 4 6 3 A 4 4 4 3 Grease distriDution in tested bearings Grease A Grease B x SE 1 X
268. MQCJ NTN has developed the angular contact ball bearing with the MQCJ lubrication It adopted a new jet lubrication method with inner ring cooling system and a best minimized quantity lubrication mechanism for raceway A new product that had newly applied the MQCJ lubrication to the single row cylindrical roller bearings was developed We introduce single row cylindrical roller bearings with new jet MQCJ lubrication method 1 MQCJ JIMTOF2OO6 MQCJ MQCJ dmn 335 dmn 300 MQCJ MQCJ
269. 4 3 EHD EHD Z rd Z 9 3 NJ 12 G100MPa
270. Cumulative probability 0 200 400 600 800 1000 1200 Lio Life h 5 e 10 9 6 Cumulative probability distribution to estimate Lio life from the suspending time prior to failure e 10 9 Test numDber 6 4 4 1 6 2 3 2 e 10 9 7 9 3
271. MQCJ 1 MQCJ 1 Structure and lubricant flow 70mm MQCJ MQCJ MQCJ 3 142
272. V 8 Structure 9 Output signal and condition of iron particle 2 1 ET WI 30 NNN I 6 Coupler type 10 Schematic view of coupler type oA 5 NTN 4 NTN 125 NTN TECHNICAL REVIEW No 76 2008 Direction Change Unit for Office Equipment TsutomuMAIWA
273. io Lo Lic 100 10 9 oe on 0 1 Applicable contents of this method
274. 9 SenSOr unit 9 3 9 1 5 um Fes0s 10 11 10 10 11 500 5wt9 3 5 Ts 100 Ts 1g Ts T 4 800rpm Ta 1800rpm Ts h T4 8B00 Ti Tg
275. MQGS 5 9 C 14000min 5 Life test conditions 0 07mm SE 1 47g 2 15000 min1 dam 190 min 15000 min1 dam 190 190 1 2 2 kN 15000 min dm 190 JIMTOF2004 _e_ MQGS HSE 5 0 5 10 15 min1X104 8 b MQGS HSE Temperature rise between MQGS and HSE type Ph 15000min 48h 1 15C
276. XY 1 LCD mother glass size 5 6 7 8 10 2002 2004 2005 1100X1250mm 1500X1800mm 1870X2200mm 2160X2460mm 2006 2850X3050mm 2009 82 HI 3 000mm 1 XY 0 0 1 10 3 500mm
277. b Inner and outer ring temperatures of developed bearing with ceramlic rollers 40000 min 11 Inner and outer ring temperatureSs vs rotational speed 86 4 N1014 dmn 325 NTN 1 NTN I J 22 23 008 Poplawski J V Slip and Cage Forces in a High Speed Roller Bearing ASME J of Lubrication Technology 94 2 143 152
278. yl 20mm x20mm Xx t2mm MHz 400 Cc 5 9 Relationship between content of ceramic powder and dielectric constant NTN TECHNICAL REVIEW No 76 2008 0 012 e 0 010 _ 0 008 0 006 0 002 0 000 10 Relationship between content of ceramic powder and tanO 6 UL94 1
279. 11 Ts d 500 c 500 4 1
280. 120 8 840C 850C NHs NHs 1 940C 8B50C SUJ NHs 1 NHs NHs NHs 850C 840C NHs NHa NHs NHs V Cr Al Ti SCM420 SNCM420 NHa
281. SUJ DN SUJ DN 1 SUJ 5 Sliding test method NN Ne 7 1 AN 45 007 3 Test condition SUJ2 0 005 umRa 0 05 umRa 0 4umRa 23 in 5 30 1 C 25 50 80 4 1 DN 6 25C
282. e 10 9 Dio 45 Lso 15 x y 21 8 0 95 Cumulative probability 0 04 21 8 10 20 30 Lio life ratio 7 io le 10 9 3 Cumulative probability distribution of Lio life ratio e 10 9 Test number 3 Required significant difference of Lio and Lso life ratios Test number 8 mio Lso e 10 9 Relationship between test number and reduired Sidnificant difference of Lio and Lso life ratios e 10 9 NTN TECHNICAL REVIEW No 76 2008 4 4 1 8 10 Zio 5 9
283. n min C IN P N p p p 10 3 IS028 1 007 also NTN LDD Load Duration Distribution 100 300 Bin Bin Bin Dy Bin 4
284. 2 NTN TECHNICAL REVIEW No 76 2008 a 1 Jr XY Appearance Of the super sized table 1 pa Y Division part of the Y axis Dase Y 3 X 4
285. 19 G0 nig a mW m a TE J 6 19 Test eduipment GO Test eduipment design G1 GO 14 5 C 105 3D
286. 6 10 oe 0 BB MTN LD i 3 FE 9 5 A 8 5 9 EMR GE 6 EET1 45K 9 tas 9 onen1 anommen1 amAans snowz ove11 sae ns aooet a 9 a 9 6 lcon of angular contact ball bearings w aa 7 Ilcon of standard angular contact ball bearings RO 2 ne Ea OO Or EE OT I OACGC NT Mm LU em em Te FAN ornznt ANATNA 8 ZOU 70 Icon of 70U 70 series 101 7015UC
287. dmn 325 35000min 70C 11 b 35000min 70C 85 a Overall view of bearing assembly D Bearing with outer ring detached 10 Prototype of developed bearing 2 SDecilfications of developed and benchmark bearings and test conditions N1014HSL 70 110 20 93 mm SisN SUJ2 SUJ2 7X7 SUJ2 SisN4 22 PEEK CF30 N1014HSL 70X 110X 20 93 mm SUJ2 7X7 SUJ2 22 PEEK CF30 03 um ISO VG32 0 01 cm3 5min Xx2 1C NTN TECHNICAL REVIEW No 76 2008
288. 1 N1014 1 Bearing Specifications and test conditions in high speed Operation test with various Cade guiding types N1014HSL 70X 110X 20 93 mm SUJ2 7X7 SisN4 22 PEEK CF30 0 2 LUm ISO VG32 0 01cm10 minX2 1 C 82 60 C 3
289. 100 5255 550C 5 mm h Conventional depth of nitriding vs nitriding time for various temperatures 4 4 1 3 625 650C 0 1 1 m 100nm 65 2 3 FesC NTN TECHNICAL REVIEW No 76 2008 3 E M T E M micrography of the structure after prior heat treatment
290. Boundary condition of heat transfer analysis 4 1 3
291. MQGS grease life test conditions 1 0 m 15000min gmn 190 1C MQGS Schematic construction of test Spindle 3C i 14000min kanF _ W h a 3C Temperature rise 3 C 1 cycle 15000min 15 C Omin h b 15C Temperature rise 15C 4 Heat cycle pattern MQGS 3C 15C Bearing specifications for test RW EC SE 1 8g SE 1 47g 0 07 mm 150 3 Section view of test bearin9 9 0 5000 10000 15000 20000 h 5
292. 6 S004 4 15 439 453 1870 5 D amp D2007 735 2007 6 2008 28008 5 133 134 2008 19 4 341 346 1974 7 NTN TECHNICAL REVIEW No 76 2008 Heat Transfer Analysis of Machine Tool Main Spindle Yoshimitsu HIRASAWA Yukimitsu YAMAMOTO CAE
293. Outer race temperature o gn 335 nn 4 dm 186 gm 149 O1 CO kW MY OE 0 0 1 2 3 4 5 L min 14 Power loss 3 MQCJ MQCJ NTN 7 0 MQCJ DB DN NII 3 dmn S00 MQCJ 1
294. strong Magnet Pump Test equipment save X 0W 20 1500cc 5I min 1 ON OFF LCR PC S 3 3 1300 3000 30 um 0 01 g 4100 5400 0 m 75 m 3
295. 108min 10 Power loss 18 Measurement position NTN TECHNICAL REVIEW No 76 2008 13 MGQC4J 14 13 14 MQCJ J 335 45 e Zn 298 gn 186 35 gn 149 7 _ 10 t 0 1 2 3 4 OS Umin 13
296. 3 IO kk Dispersion limits of Weibull slope 20 30 40 50 Test number 14 e e 10 9 Relationship between test number and dispersion of Weibull slope The result is conducted as e 10 9 of life distribution NTN TECHNICAL REVIEW No 76 2008 IN e UDDer limit TS Normalized differential value of dispersion limits of Weibull slope 0 a LM 4 0 20 40 60 80 100 Test number a e 10 9 15 ae Test number b e 3 Normalized differential value of dispersion limits of Weibull slope e e 10 9 3 Normalized differential value of dispersion limits of Weibull slope depending on test number e 1079 and 3 6
297. 4 M50 5 8 X 10 um 100 m 200 m M50NiL 32CrMoV13 0 65 1 1 5 2 mm 2 5 7 Hardness profile of the nitrided layer MPa um 8 Residual stresS Drofile NTN TECHNICAL REVIEW No 76 2008 510MPa M5ONiL 200MPa
298. 80 1966 1887 EC 10 100
299. CAE analysis is very useful for shortening the period of development and reducing the freduency of development trials To use CAE accuracy of analysis is indispensable This is to report the heat transfer analysis of steady state by Finite Element Method to estimate the temperature distriDution of the machine tool main spindle bearings and test machine 1 amp CAE
300. 3 4 8 8 United support construction of the Needle and Ink cassette
301. Construction of the gearbox Bearing type for gearbox SRB CRB TRB BB 4PCRB SRB CRB BB SRB CRB TRB 4PCRB ke SRB CRB SRB TRB SRB CRB FCCRB SRB CRB FCCRB TRB FCCRB SRB TRB SRB CRB FCCRB TRB BB 4PCBB 4 9 4 1 i 3 1 5MW
302. 0 0 2 0 4 0 6 0 8 1 2 4 SCM480 DistriDution of carbon and nitrogen concentration in SCM420 mm SN masss6 2 10 10 2 22 24 0 0 0 2 0 4 0 6 0 8 1 mm 5 SNCM420 Distribution of carbon and nitrogen concentration in SNCM420 N es26 1 IANI0O 9 2 22024 0 0 0 2 0 4 0 6 0 8 1 mm 6 SUJ2G Distribution of carbon and nitrogen concentration in SUJ2 19 4
303. 1 10 6 6 3000 1000 1000 3000 10 9 G00 6 3000 7 7 3000 5 5 300 50 3000 10 3000 975 3000 Zio 9d75
304. M50 0X103 M50 MPa M50 MPa M50 32CrMoV13 MPa MPa 32CrMoV13 M50 MPa 32CrMoV13 0 200 400 600 800 1000 Lm 9 NJ 128 PHz 3100MPa Comparison of local maximum shear stress for NJ212 bearings PHz 3100MPa M50 600 m 550 m
305. in XRD pattern and specific wear rate of TiN film RS NTN TECHNICAL REVIEW No 76 2008 6 3 3 Physical properties of TiN film investigated in multiple regression analySiS Ra RZ CAT 111 A X 200 X 0 311 X X X 400 X 111 200 X X AIP
306. 300min 300min 100C 6 1 0 1N m 0 1N m ON 3 3 3 3 OFF PS LO NE EE 0 2 EE UM 5 Endurance test machine of two input type direction change unit GE 6 1 Endurance test machine of one input type direction change unit 129 TECHNICAL REVIEW No 76 2008 4 1 3 30 3
307. J e 1 w 1000 0 lesl ls 1 SUJ A SUJ O OO 100 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 G 112 The trend of rolling contact fatigue life of 12mm in diameter specimen 10 2000 1964 SCr420 GUJ 1880 EE JIS
308. NTN TECHNICAL REVIEW No 76 2008 Rolling Contact Fatigue Life Test Design and Result Interpretation Methods Maintaining Compatibility of Efficiency and Reliability HLLILI TH 1 LN limg thy 3 TakumiFUJITA 1 Zio Lso 8 7 7
309. SA Rumberger J H Filetti G and Gubernick D Gas Turbine Engine Mainshaft Roller Bearing System Analysis ASME J of Lubrication Technology 95 4 401 416 19738 Conry T F Transient Dynamic Analysis of High Speed Lightly Loaded Cylindrical Roller Bearings I Analysis NASA Contractor Report 3334 1981 Conry T F Transient Dynamic Analysis of High Speed Lightly Loaded Cylindrical Roller Bearings I COmputer Program and Results NASA Contractor Report 3335 1981 Chang L Analysis of High Speed Cylindrical Roller Bearings Using a Full Elastohydrodynamic Lubrication Model Part 1 Formulation STLE Tribology Trans 33 2 S74 284 1990 Chang L Analysis of High Speed Cylindrical Roller Bearings Using a Full Elastohydrodynamic Lubrication Model Part Results STLE Tribology Trans 33 2 S85b 291 1990 CAT NO 2260 3 4 6 8 Markho P H Smith B V and Lalor M J An Advanced Apparatus for the Study of Roller and Cage Slip in High Speed Roller Bearings ASME J of Lubrication Technology 103 46 54 1981 9 NTN CAT NO 2260 I J 160 161 2008 10 3 35 1968 1 1
310. 2008 Johnson9 Zic
311. 2008 160MPa 6 20C 5 10 19um 150C 7 150C 7 150 C 350MPa 5 160MPa 4 Td 6 Imitated ceramic inner ring and its fitting to shaft for hoop stress resistance
312. 54 1240 1244 1988 87 NTN TECHNICAL REVIEW No 76 2008 MQGS Minimum Quantity base oil of Grease Supply Lubrication Angular Contact Ball Bearings A Sun Woo LEE TadaakiMAEDA MQGS Minimum Quantity base oil of Grease Supply Lubrication 100mm an 190 MQGS Ilubrication angular contact ball bearing has the grease lubrication that Installs a minimum quantity reservoir mechanism spacer of outer ring It was developed so that high speed and long life of machine tool applications may coexist it was Succeeded in practical use by the high speed driving Of dmn 1 9 X10 jn fixed position It is introduced the outline of development by this text This new grease Iubrication system was named MQGS lubri
313. 0 0238Re 98 Pr 06 Nu A W m2 C 76
314. 10 4 ULTAGE NN30xx 2 _ Condition of cage after 2000 h of HSRT dmn 7 5 X104 rapid acceleration and slowdown test dmn min 75X10 F4300 E HSRT7 PPS NN3028K 140x 210x53 4300min gdmn 75Xx10 10um EN 2 M _ 1 5 sec 1 0 sec ll G Sste 1 0 sec 1 5sec 6 Rapid acceleration and slowdown test condition at grease lubrication eH EXT NO NTN TECHNICAL REVIEW No 76 2008
315. 10mg 25ml 5 Improvement of rolling contact fatigue life of various steels with special heat treatment FA 6 SUJ2 The comparison of prior austenite grain size between conventional heat treatment and FA treatment 14 4 4 1
316. 140X 210X53 4300min Di NN3032K 160X 240X60 3800mn dmn75X10 J 15 20 25 30 35 40 45 4 FEM Relation between width of ring and deformation FEM analysis of deformation UTAGE 3 1 5 0C 6D500min gmn 114x104 4500min dmn 79x104 45 2000 000 140 160 2000 dun 75 X104 5 m
317. 30 m 2 0 100 200 300 400 500 600 700 bD Counting result 10cc with 10 um filter 4 Analysis result of detected data and counting result of sampling oil 10cc 10 m 4 D 4 a 4 D 1 1 3 3 1 5
318. 4 x WW gz y sa kyr P 1 6 7 P X 9 DN EE PEEK F kk 0 001 0 0001 1 0E 10 1 0E 9 1 0E 8 1 0E 7 CA NIMm 9 Presumption of sliding condition An 1 2 7 P 1X1033 m 1 2
319. 55 70 MQCJ 1 MQCJ Test conditions DB 7 8 9 10 MQCJ MQCJ N1011HSR 55mmX 90mm 18mm 0 um 1mm 2 180 VG1 5 VG32 5S 2LA HSL007DB 23 24 C 20 C 5L min EE MQCJ 2 5L min
320. 5X 115X 20 2D GD CAD 9 A 3GD CAD B C B 3D CAD 10 SAT STEP IGES DXF CAD Solidworks Inventor OneSpaceModeling Solid Edge FT rr TE ST Tt EE EH EN EE HI r ETE EdPH 9 7 015UC Example for 7015UC of standard angular contact ball bearings F ES mL Cp Bon DW DWG 2D DRF ED Ds 3D jmventar 3D jmvantar Macro 3D GolidDesigmer Macra 3D SUC Mechanical Desktop Macro 3D 7U15UC mner rir ST Salidedge 3D 3 7015UC Ball _ SolidWorks Macro 3D
321. EK 65 2 May e 150 58 17 25 16 5 e ei 151
322. P055 80 84 1970 NTN TECHNICAL REVIEW No 76 2008 0 120 100 80 60 40 20 0 0 20 40 60 80 100 120 2059 9 Population bucket in 2055
323. estimated data by multiple linear regression and exDerimental data of specific wear rate of TIN film 54 TIN 7 5 5 Parameters in coating conditions of TiN film investigated In multiple regression analysis Pa A 0 411 TCENIDNSIE 111 6 1 11 CC CC Dominant parameters of coating conditions on peak strength of 111 crystal face in XRD pattern of TiN film
324. kN mm 6 240 600B Torque Of the bearing and wind velocity 4 10 3G0min 1500 1800min AGMA 4 IEC IS0 7
325. nitrided case Optical 0 800 1000 1200 5 a b 2 C N a Optical micrography of the nitrided case nital etching b Vickers micro hardness weight C weight N profiles of the nitrided layer 1 WIT NE 6 a b 3 4 a High resolution image of semi coherent precipitateS b Inverse Fourier Transform showing the very thin width 3 4 atomic planeS 10nm 9 e Fe Cr sC e 100nm
326. of Grease Lubrication Mechanism for High Speed Bearings Takayuki KAWAMURA Machine tools bearings are operated at high speed and room temperature They are widely used with oil lubrication but also used with grease lubrication In the case of grease lubrication it is necesSary to lubricate for tens of thousa
327. resistance IS improved with increase the nitrogen concentration of surface Besides we consider that severe wear IS change to mild wear quickly so that wear resistance of carbonitrided steel is superior 1 9 Cr V SCM420 SNCM420
328. test 5um 10 m 19 m MPa 0 50 100 150 200 C 6 Calculated maximum hoop stress of ceramic rin9 associated with Fig 6 9 8 8 4 Exaggerated view of roller axial gap and rib angle in Fig 4 MWK NE a 1 0 Inner and outer ring temperatureS VS roller axial gap ratio 0 40 0 80 1 12 1 88 2 32 MK AS Ee 0 20 4 0 6 0 b Inner and outer rind temperatureS VS rib angle ratio 9 AO 2 R Inn
329. 230mmx230mm 1 J W Schultz J S Colton amp CO K Berkowitz 4Dth International SAMPE Symposium 1863 1873 2000 G004 43 2004 3 2006 70 2006 4 20098 119 2008 5 voll 54 57 2007 a gt 62 NTN TECHNICAL REVIEW No 76 2008 Development of Sensing System for Cerebral Aneurysm Treatment Yoshitaka NAGANO Hideo FUJIMOTO
330. 4 b 15000min 48h 1h 10 mn 190 1 cycle 15000min sc 14000min h B Heat cycle pattern MQGS MQGS MQGS 10 Life test results 92 vv 0 MIQGS MQGS 1 UL TAGE NTN TECHNICAL REVIEW No 72 2004 cbG e9
331. 5C 410 266 S 15C 4 a b 5 3C 15C 20000h EE MQGS Schematic construction of MQGS lubrication 89 NTN TECHNICAL REVIEW No 76 2008 47g 60 15C 50000h 100mm 47g 1 MQGS
332. 7 12 10 90 12 10 Lic 1 ic 1 1 2 gt 1 0 0 g oo 0 6 a 0 4 0 0 0 181 4 90 0 10 20 30 40 50 Lio life ratio 10 Zio e 10 9 10 Cumulative probability distribution of Lio life ratio e 10 9 Test number 10 x y 10 0 95 Cumulative probability 0 10 20 30 40 50 Lio life ratio 11 Zio e 10 9 10 2 1 Cumulative probability distribution of Lio life ratio e 10 9 Test number 10 Difference of Lio life 2 1 Minimum differences of Lijo and Lso lives Lio 8nd Lso life ratio 12 Lio Lso
333. 8HT 12 NN3005 NN3036 NN3005HS NN3026HS N1011HSRT6 N1020HSRT6 Q 9 P CAD CAD data formation 100 9 CAD CD DR ME NS 5eP7 3 gt OL LE rE le SE Pk i A EE mm 3 NTN Screen Of NTN Top screen rf Mr NG on SS OD OD rv EE OT I COAG 4 Screen Of precision bearings TP sa EE EE ES SD VE 5 lcon of precision bearings EE 3D 2 9 CAD 3 CAD
334. EW No 76 2008 CD R 1 3 CAD 3 CAD CD R 1038 S12 78 132 9 CAD 1 CAD 5 1 Registered main part numDers 7805C 7834C 7900U 7934U 7000U 7040U 7200C 7226C HSE910 HSE934 HSE010 034 HTA920U UHTA964U HTAO010UHTAO064U BNT900 BNT913 BNTO0O00 BNTO014 BNT200 BNT216 7900 7910LLB 7000 7010LLB BNS910 BNS920LLB BNS009 BNSO020LLB 78 BST17x47 BST60x120 7000HT 7002HT 7203HT 720
335. IEW No 76 2008 1 km 2 a Oc SN iV E gt 7 2 SYS A 6 SE 1 Distribution of tested SE 1 in a bearing 8 Sa 4 1 4 TN SE 1 A B 8 B SE 1 lt A A 7 B BB
336. IEW No 76 2008 10 Revolver unit 10 10 5 XY
337. IGUC Cage1l DXF 3D IGES 3D SAT ascii 3D STEP 3D BMP GIF JPEG TIFF 10 3D CAD Writing format of 3D CAD data NTN TECHNICAL REVIEW No 76 2008 CAD 3 3 CAD
338. IS0 46 IS0 46 CC 40 32CrMoV13 gt 1300 3863 1240 M50 1300 942 560 M50 Nil 850 980 x2owcrio 990 28500MPa NATO 0156 FB2T Ra raceway Ra pan 221 56 MBONI LIMSU OOIMOV 1 6 32CrMoV13 M5ONIiL 6 CF Rolling contact fatigue under Doundary lubrication and of dented raceways flat washer M50NiL M50 32CrMoV13 DN 5 123 569 gt 500 SNR FB
339. KOYAMA Futoshi KOSUGI and Hiroshi IAKIUCHI NTN TECHNICAL REVIEW No 76 2008 46 COs 200 25 NTN
340. TN NTN angle sensor unit Analog type NTN NTN angle sensor unit Digital tyDe Specifications of angle sensor units NTN NTN Fy TkN Fa TkN RKN TKN 0 5 0 596 NTN TECHNICAL REVIEW No 76 2008 PWM 360 NTN
341. Y Osada J P Gong Macromolecules 40 18 GOGOOIEYZ 50 NTN TECHNICAL REVIEW No 76 2008 TIN Study on the Effect of Physical Properties on Wear Resistances of TiN Films Coated by Arc plasma lon Plating Hideyuki TSUTSUI TiN TiN 111 220 Relationships between physical properties and wear resistanceS Of TiN films coated by Arc plasma lon Plating in different conditions were studied From the result of multiple regression analysis of these properties it was clarified that orientation of crystal face is a dominant factor on wear resistance Of TiN film and TiN film which has high orientation of 111 crystal face and low orientation of 220 crystal face shows qood wear resistance 1 TiN
342. anging rate of gain dBi 6 6 1 EPDM RoHS 11 9 10 0 003 0 005 0 00 10 0 001 330 9 10 11 Test conditions
343. cation omission name of the initial of Minimum Quantity base oil of Grease Supply Lubrication 1 NTN ULTAGE 9 MQCJ 3 gn 140 BNS dmn 170 BNFS
344. d 3D CAD data electronic catalog of precision bearings which is SUDDlied recently and analysis examples which is used 3D CAD data 1 ULTAGE ULTAGE IULTIMATE STAGE ULTAGE 3 3 CAD 2008 4 15 3 CAD 9 CAD
345. earing 109 9 10 MQCJ VG1 5 0 5mL min MQCJ MQCJ MQCJ 5L min 5Lmin 0 5mL 10min kW 5 10 15 20 25 30 SS 40 45 50
346. ed on rubDber which shows superior flexiDility and nigh impact strength compared with ceramic and polymer antenna materials The developed material has fire retardancy The developed material is suitable for dielectric antenna which is used in Wireless LAN Radio Frequency Identification Ultra Wide Band and so on his report introduces the characteristics and test results of the developed material 1 LAN RFID UWB GPS
347. er and outer ring temperatures vs roller axial gap and rib angle 25000min 1 9 9 a 1 0 9 b 0 4 6 32 5 DNRC RN 2 0 3C
348. hine 1 i Ee 3 2 Cross Section of test machine 4 Analysis model NTN TECHNICAL REVIEW No 76 2008 3 4 5 1 5 2 5 3 4 5 4 C 10 7C 28 7C 36 0C 5 4 36 0 28 7 7 4 0 8C 1 4C 0 8 36 0 28 7 11
349. hnologies of steel making and heat treatment for bearings are reviewed and the future trends are described The improvement of cleanliness of steel and the developments of new steels were Conducted mainly with steel manufacturers so far Considerind the iSsues of globalization environment raw material such as rare metals and safety surface modification technology will be focused more and the collaboration with each elemental technology will be more important 1 EL
350. hod of the Deterioration of Lubricant 57 Kentaro NISHIKAWA and Tomomi ISHIKAWA Heat Transfer Analysis of Machine Tool Main Spindle Yoshimitsu HIRASAWA and Yukimitsu YAMAMOTO Development of High Speed Cylindrical Roller Bearings for Machine Tools 2 Masatsugu MORI and Takuji KOBAYASHI Products for Industrial Miachinery Minimum Quantity base oil of Grease Supply Lubrication Angular Contact Ball Bearings Sun Woo LEE and Tadaaki MAEDA 88 Minimum Quantity and Cooling Jet Lubrication Single row Cylindrical Roller Bearings Futoshi KOSUGI and Susumu NOJIMA 2 3D Electronic Catalog Introduction for Precision Bearings of Machine Tool gg Takehiko UMEMOTO ULTIAGE Series Large Size and Long Life Double row Cylindrical Roller Bearing for Main Spindle of Large Turning Machines 107 Naota YAMAMOTO Micro HL TIapered Roller Bearing Takashi UENO NTN Sensor Units for Construction Machine Shoji ITOMI and Hiroyoshi ITO Tsutomu MAIWA 111 118 Precision Apparatus Products Large Gantry Table for the 10th Generation LCD Substrates 132 Katsuyoshi SUZUKI and Naoshi SUZUKI Development of Linear Changer with Built in Pasting Unit for Defect Repair System of Flat Panels Akihiro YAMANAKA and Akira MATSUSHIMA 8 Our Line of Award Winning Products 2007 JSPE Technology Award Development and Practical Application of MQCJ Lubricated Angular Contact Ball Bearings for Machine Tool Main Spindles Masatsugu MORI Yoshinobu AKAMATSU Mineo
351. lt IDG
352. nds of hours without supplying new qrease However excellent anti oxidation grease necessarily do not lubricate longer life This report investigates used grease Operated at high Speed and room temperature lt was found that oil supply ability to rolling contact area was more Important than oxidation stability Moreover it was also found that grease with easily oll separation and stable thickener structure Decame longer life 1 20 000 150C
353. ngs Tribology Transaction 34 2 pp 241 247 1991 5 Averbach B L Van Pelt S G Pearson P K and Bamberger E N Surface initiated spalling fatigue in M50 and M50 NiL bearings Lubrication engineerin9 Vol 47 10 pp 837 843 1991 6 Joly P and Daniel Girodin Deep Nitriding of the 32CrMoV13 Steel AMS 6481 0 32 C 3 Cr 1 Mo 0 2 V and its Application for Aerospace Bearings oronto May 2005 7 Joly P FREY J and LARREUR B Developpements recents dans les aciers de nitruration et le controle des cycles de nitruration Dour obtention de couches nitrurees tres DrofondeS NITRURATION Journees franco allemandes J GroSsch et E J Mittermeijer April 2002 8 Dulcy J Torchane L Gantois M M canismes de formation et cinetidue de croissance des couches nitrurees NITRURATION Journees franco allemandes J Grosch et E J Mittermeier April 2002 9 M Sennour PhD Thesis Lyon INSA 2002 10 EI Ghazal H Study of microstructural and mechanical properties of case hardened 16NiCrMo13 and nrtrided 32CrMoV13 steels Application to the estimation of the rolling fatigue life PhD Thesis Lyon INSA 1999 11 Vincent A Elghazal H Lormand G Hamel A Girodin D Local elasto plastic Droperties of bearings determined by nano Iindentation measurements Bearing steel technology Advances and state of the art in bearing steel quality assurance J M Beswick Ed ASTM STP 1419 p427 442 2002
354. olling contact fatigue life and Si content 10 6570 6990 0 96 30 0 40 1 45 1 00 1 42 0 40 1 41 b Extream value theory Lioest 1 08 X 100 area MAX AlzO3 2 21 100000 1000 Lio exp X109 Multiple correlation coefficient 0 698 100 1000 10000 100000 joyest X10 3 The comparison of rolling contact fatigue life and estimated life based on inclusion rating EE 3 3 1 9 15
355. on Lio est 5 73 108 EAzos11 055 Lio exp X109 Multiple correlation Coefficient 0 795 100 1000 10000 100000 Lioest X10 1 ij Si Si NTJ S J 3 Si 15 Mo Si NKJ65 9 1 1 Si Relationship between r
356. on bearingS NTN has developed a new long life double row cylindrical roller bearing for the large turning machine as one of the ULTAGE Series product line Long life is accomplished by optimization Of the internal design and adoption of a light weight and high strength modified PPS resin cage Furthermore grease reservoirs inside the cage pockets extends the Iubrication life above 5 times that of the current Dearing high strength brass cage This paper outlines the development proceSSs 1 MC NN30xx HSHT 7 1 PPS NTN PEEK
357. onitrided SCM420 SEM lOum 10 SNCM420 GEM Microstructure of Carbonitried SNCM420 SEM WDI5 On 20 OKV X5 OKk 10um lO0um 11 SUJ 6 SEM Microstructure of SUJ2 SEM Ii lt 5 1 8 SNCM4280 SCM420
358. r machine tool spindles min 3096 4 1 gn mm Xx
359. t Lio and Lso lives in accelerated testing This relationship is also useful to estimate the test number based on statistical logic Of note applying calculations allows for estimates of the test results The third method enables the calculations of the range of Lio and Lso lives with significant reliability even if the test numbers are too small to estimate Lio or Lso lives employing Weibull plots The fourth method can determine the significant difference of Lijo and Lso lives between two lots and allow the quantitative estimation of the minimum difference between their lives from data obtained by experimentSs These methods provide techniques that are easier to understand as compared with the recent mathematical model and they show enough flexibility to apply to almost all type of the testing These new system will therefore eliminate the need for qualified experiences in the statistical design and result interpretation of RCF life test 1 1
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