"user manual"
Contents
1. Tapered Roller Bearing Units TAROL Mounting Maintenance Repair SCHAEFFLER GROUP INDUSTRIAL Contents Tapered Roller Bearing Units TPAROL Inch Dimensions AEN Metric Dimensions s 6 Key to Designation System O O 8 Prior to Mounting 10 inan Mounting and Dismounting 11 00 Mounting the TAROLUnits 11 002 Dismounting the TAROLUnits TAa Dismounting and Repair lS NNNM Removing the Seals and Lamellar Rings 16 Cleaning the Bearing Parts Wo Tools for Mounting and Dismounting 18 0 Examining the Bearing Parts 20 0 Measuring the Axial Internal Clearance NENNEN Greasing the Bearings O 25 sn Completing Assembly of the TAROL Units 27 Tapered Roller Bearing Units TAROL TAROL units Tapered Roller Bearings are double row tapered roller bearings that are supplied with factory set clearance greased and sealed The TAROL units are thus supplied ready to fit and are pressed onto the shaft journal by means of a hydraulic unit TAROL units are used as wheelset bearing supports on rail vehicles such as goods wagons and passenger carriages They can be mounted quickly and easily The bearing is pressed onto the shaft journal in a sin2. RR TT ete Eee 25 e dec i iuueni e epee TAROL130 230 218 33 218 40 part Must generally bereplaced l ede smtibtinisiis ri ierti hiri 5o H barah iiia APUNTAN r PL cu Eniri ii FUR HOHER Persi TAROL130 240 228 228 07 wnewn en e Wen ne Un oera a HM E E E E T l TAROL140 220 209 55 209 62 ceo i 6 E E O A E E A Gy AS EERE TEETE ASEA ET AET TAROL150 250 238 125 238 195 TAROL160 270 255 9 255 97 Checking the axial internal clearance of the bearing after dismantling is also included in maintenance operations This ensures that the spacer ring has the necessary width to assure that the bearing has the required axial clearance when fitted The bearing parts are immersed in machine oil or anti corrosion oil after cleaning The axial internal clearance of the bearing must never be measured when the bearing is dry The measurement is made using an axial internal clearance gage The following procedure is used e Position a suitable centring bush and firmly clamp using grub screw fit centring ring in the case of some bearings a Push an inner ring with roller and cage assembly and intermediate ring on to the centring bush until it rests on the supporting plate b Push outer ring over the inner ring whilst rotating the outer ring by hand e Insert second inner ring with roller and cage assembly in the outer ring whilst rotating the outer ring e Eccentric UP i e rotate in an upwards direction the bearing is lift
3. The ring carriers complete with lamellar rings can easily be fitted by hand in the sealing caps The sealing caps have corresponding chamfers The end faces of the ring carriers must be free from grease Both the double lamellar rings press against the non rotating sealing cap and form an effective labyrinth seal with the grooves Before mounting the end cap A new locking plate and three hexagonal bolts must be provided in addition to the clean end cap Packaging and storage If the repaired TAROL unit is not to be mounted immediately itis packed and stored like a new bearing unit 2 28 Contacts and Literature Contacts Please do not hesitate to contact us at the following address should you have any questions about FAG tapered roller bearing units TAROL testing center and test rigs mounting and dismounting procedures lubrication and grease as well as bearing unit maintenance Schaeffler Technologies GmbH amp Co KG Railway Bearings Product Line Georg Schaefer Strasse 30 97421 Schweinfurt Germany Telephone 49 9721 91 3998 Fax 49 9721 91 3788 E Mail rail_transport schaeffler com Please contact F IS at the following address if you have any questions about tools for mounting and dismounting as well as accessories bearing reconditioning and training for TAROL unit maintenance FAG Industrial Services GmbH Kaiserstrasse 100 52134 Herzogenrath Germany Telephone 49 2407 9149 66 Fax 49 2407
4. The unit is regreased according to the section Greasing the Bearings on page 25 All tools for mounting dismounting and repairing TAROL units can be purchased from FAG Industrial Services Suitable tools in good working order are required to ensure that bearings and seals are not damaged during maintenance operations Suitable tools are described on page 18 15 16 Dismounting and Repair Removing the Seals and Lamellar Rings Removing the seals e Remove seal wear ring on front side Withdraw backing ring with seal wear ring from the unit Lay out ram with ram plate and lock nut press out segments and support ring ready for use a b Insert press out segments between inner ring and sealing cap c Guide ram through the bearing bore until the pins on the segments locate in the holes in the ram plate d Screw lock nut onto the ram and axially secure ram and segments e Insert bearing in the support ring f Place bearing with support ring in the press and align g Press out seal or sealing cap Remove inner ring and spacer ring which are now loose Unscrew the lock nut from the ram Press out seal on the opposing side of the outer ring as described above Removing lamellar rings The lamellar rings can be withdrawn from the unit together with the ring carrier the end cap and the backing ring without using any special devices The lamellar rings are lifted with a narrow blade screw
5. are compact ready to fit rolling bearings which have been greased sealed and adjusted for axial clearance They can be pressed onto the shaft journal in a single operation If the shaft journal diameter is within the specified tolerance the necessary axial internal clearance is set by the press fit of the bearing e Screw mount the guide bush to the shaft journal using the centring bush a Coat shaft journal with a very thin layer of mounting paste the metallic sheen should turn matt e g ARCANOL MOUNTING PASTE from FAG so that no score marks are caused when pressing on the unit Remove TAROL unit from the packaging and push it onto the guide bush On bearing units with rubber seals the seal wear ring must not slip out of the sealing cap b Position mobile hydraulic unit close to mounting location and lay out spindle with lock nut and fitting sleeve ready for use c Check that the mobile hydraulic unit functions correctly d Push spindle with lock nut screwed in place through the tubular piston from the rear of the hydraulic unit e Push fitting sleeve onto the spindle of the piston press e 11 Mounting and Dismounting Mounting the TAROL Units e Align hydraulic unit with TAROL unit and shaft journal a e Push fitting sleeve onto guide bush e Screw spindle of hydraulic unit into guide bush using crank b e Operate hydraulic unit Press bearing unit from the guide bush onto the shaft
6. assembly Individual parts of a TAROL unit with lamellar rings Tapered Roller Bearing Units TAROL Inch Dimensions Type according to AAR specification Association of American Railroads Schematics of various designs C D Classes E F G GG d2 Ay SS ess y REVELA ASSSSS Lz Os Classes B C D A xs FS E Nea aA Y A n 7 i d SS E Class K Tapered roller bearing units TAROL with inch dimensions Design Size Dimensions Bearing Ordering designation Suffixes Designs D E F G K in accordance U Complete unit with AAR Standard M 934 JP Sheet steel cage Irrespective of the data given the bearings are always matched to the AAR specifications For standard greasing a grease approved to AAR is used Design Dimensions Load rating Load rating Mass Size Shaft ABEC RBEC DINISO281 TAROL unit d min d max d C1 C inch inch inch lbs lbs mm mm mm kN kN kg class B 4 003 4 004 5 106000 32 6 414x8 101 676 101 702 127 465 415 14 8 class C 4 6905 4 6915 5 875 146000 54 7 5x9 119 139 119 164 149 225 655 570 24 8 class D 5 1905 5 1915 6 375 160000 60 2 515 x 10 131 839 131 864 161 925 20 620 27 3 class E 5 6905 5 6915 7 030 7 032 166000 77 0 6x11 144 539 144 564 178 562 178 613 50 655 34 9 class F 6 1905
7. bearing seating surface should be smooth and free from score marks and notches Demagnetize magnetized shafts before mounting Measure shaft journal whereby shaft and tool should have the same temperature The shaft journal is measured using the snap gage that has been set with the master disk The shaft journal dimensions must be within the values which are specified in the bearing tables Tolerances for shaft journals with inch dimensions The terms of the Manual of Stan dards and Recommended Practices of the AAR including Specification M 101 apply here In relation to dimensional and geometrical accuracy for example the values for out of roundness and conicity must not exceed 0 025 mm 0 001 inch The mounting of bearings in accordance with the AAR Specifi cation is subject not only to the information in this brochure but also to the current issue of the AAR mounting specifications These can be found mainly in the Sections G G Il H and H II of the Manual of Standards and Recommended Practices The specifications include repeated tightening of the end cap screws until there is no further rotational movement of the screws at the specified tightening torque Tolerances for shaft journals with metric dimensions As a general rule the cylindricity tolerance must be a maximum of 0 01 mm 10 Mounting and Dismounting Mounting the TAROL Units Tapered roller bearing units TAROL
8. i e rotate in a downwards direction Remove support ring with dial gage Rotate inner rings by means of Axial internal clearance values for dismantled TAROL units with metric dimensions axial internal clearance of the bearing measured on the work bench TAROL unit Axial internal clearance grip approx 12 x 360 until the aati mas rollers are in contact with the Sion mm mm luiperibal DEDOS BREITE ee tree creer TEESE HN CU EIU HUM DINMUHEHRDNEUDUME e Position support ring with dial TAROL90 154 0 53 0 63 gage on the outer ring and set TAROL100 165 0 53 E PESENE Mor 0 68 REEN sca else eS eps LA Sateen a dul wot deir RNG ao Ca e cia do ad ordo brem EEEE ay erie dd b Gils GN ip dial gage to d elas e TAROL100 175 0 53 M 0 68 Bios Qi EE E tube edidit sua REL bns quia neuen aed meee nan s eent UP Tre rotated am ASTE ET CMM ME D ONIUUIRNINIURPURUENNUNIMIEU RDUM upwards direction STEAM Aaa Uie saves GIMf UEM OH SUNMM e Rotate outer ring to and fro TAROL120 195 0 533 5 GAS Sk ENE eaa 0 685 CIMA eee RN RT NR TU ene ee RUN ae ee ee ae IT RT CETT ree eee a ay ee ee ee ee ee ee T approx 10 x 45 until the rollers TAROL130 210 X 0 533 TR 0 685 id dine ee ende ee ee A Dri IR eR RE RD ee de RUE A Mo Bol d qr iw dede Rhe ao Er ee ee eee eee dr dope AER are in contact with the large rib of TAROL130 220 0 51 P X Tor 0 66 cerca the lower inner ring The indicator TAROL130 230 0 51 Sciatica ac
9. journal using the fitting sleeve The outer ring should be rotated to and fro by hand when doing this so that no The pressure increases rapidly if the backing ring is located axially on the shoulder of the shaft The greatest press capacity should correspond to the maximum contact forces in the following tables The highest contact force is applied again to ensure the bearing unit is correctly located stresses occur in the bearing c Maximum contact force for TAROL units with metric dimensions TAROL unit Maximum contact force for TAROL units with inch dimensions TAROL unit with Max contact force Max contact inch dimensions with metric force dimensions Class Size kN to lbs Size kN to B 414x 8 350 50 35 4 5 79000 11 000 90 200420 2042 E E pei enata Seana 1 x nein umet a ar i ie ere EE oS SET Par NE iro emite T mare eh he erences do n NE dU ovt pni qt Dare deni i EE MM ME E NE E TP Ko uade DN ro E ELI NE E Sri Mpnpad e es E CREE pupa e ee E Pei MET n A A ao gee e ECE Tae 7 ea aioe freu eL em POE emu NIME EE DU MN LL LLL LLLI U For converting into contact pressure see hydraulic unit user manual Mounting and Dismounting Mounting the TAROL Units e Screw spindle with lock nut out of e Tighten end cap screws with the In the case of designs with end the guide bush and remove from tightening torque specified in the cover the hydraulic unit tables e e After tightening the end cap screws e Move hydraulic
10. 6 1915 7 530 7 532 232000 116 6 615 x 12 157 259 157 264 191 262 191 313 1020 900 52 9 class K 6 1905 6 1915 7 530 7 532 232000 89 7 615 x9 157 239 157 264 191 262 191 313 1020 900 40 7 class G 7 003 7 004 8 000 8 002 265 000 132 5 x 12 177 876 177 902 203 200 203 251 1180 1020 60 1 GG 6 503 6 504 7 905 7 906 344 000 179 5 61 2 165 176 165 202 200 79 200 81 1530 1320 81 4 GG 6 878 6 879 20 0 73673 344 000 170 4 TAROL Tapered Roller Bearing Units Metric Dimensions Schematics of various designs NS d d d D dv tH Tapered roller bearing units TAROL with metric dimensions Base bearing Dimensions Bearing Shaft d D C d d mm mm mm mm mm TAROL90 154 R TVP sss rc A D MUR SU TAROL100 165 RJP 100 sse sss AAA LL 100 n6 p6 ZO KB us TAROL100 175 R TVP 100 s Ass 100 n6 PO 126k8 us TAROL100 180 R TVP 100 180 130 2 OO MO 1298 su TAROL110 180 R TVP 110 480 A2 a TOPE LL LLLA E eus TAROL120 195 R TVP 120 EEO P6 ABBE eeu TAROL130 210 RJP 030 ss 2A VL LAM AAA ee u TAROL130 220 R TVP 130 220 B0 aa B0 P6 A6007 sss TAROL130 230 R TVP 130 s Ae ABS VLL ABE ss TAROL130 240 R TVP 130 MOO B0 p6 16007 TAROL140 220 R JP 440 ee su TAROL150 250 R TVP 150 280 A60 B0 P6 A70 s TAROL160 270 R TVP
11. 9149 59 E Mail info fis services de Literature You can find further brochures about the services provided by INA and FAG for railway vehicles and a selection of reference sheets with application examples in the library sections of the following homepages www ina com und www fag com MATNR 036793159 0000 TPI 156 GB D 2010071 Printed in Germany by hofmann Schaeffler Technologies GmbH amp Co KG Georg Sch fer Stra amp e 30 97421 Schweinfurt Germany Internet www fag com E Mail rail_transport schaeffler com Telephone 49 9721 91 3998 Fax 49 9721 91 3788 Every care has been taken to ensure the correctness of the information contained in this publication but no liability can be accepted for any errors or omissions We reserve the right to make technical changes Schaeffler Technologies GmbH amp Co KG Issued 2010 July This publication or parts thereof may not be reproduced without our permission TPI 156 GB D
12. Lubrication of TAROL units with metric dimensions The grease specified in the engineering delivery drawing must be used TAROL unit Total amount of grease in the bearing unit Sheet steel cage JP Polyamide cage TVP Size g g TAROL90 154 120 120 woo Qo A teen nennen oe tenen EE LL LLL TET EE es eene a A G ROLE qn meine RE E AEE tema d erumpens meten AEE TY ET MM O a eea S enemeeeme T A k Ni E o ET MEER Mene r ee O aan i Meere EC ELTE ME E ea eter etre spunea ESTEE GE ME Meere a tut r EN eene ft eae nares Correct distribution of grease for manual greasing Space between both the roller rows 90 of the free space Inner ring with roller and cage assembly Residual amount divided between both roller and cage assemblies 26 Completing Assembly of the TAROL Units Units with rubber seals These are mounted without using mounting equipment The outside seal wear ring is carefully pushed into the seal until itis in contact with the inner ring The seal wear ring for the inside of the bearing is inserted in the backing ring Both parts are carefully pushed into the seal exactly as far as the inner ring All end faces of the parts must be free from grease Do not fold or damage the lips of the rubber seals Units with lamellar rings Lamellar rings are forced slightly apart and are slipped into the grooves of the ring carrier with a screwing motion Only a small amount of grease is spread on the rings
13. al amount rollerend rollerandcage therollerrows of grease faces per assembly per row cage assembly Class Size g ounce g ounce g ounce B 414x 8 55 2 0 115 4 0 225 8 0 up ovutetMeeinddnee pow en Ey ume MEE MS C k EI MM oo pe nei ae oo ee ee am ane 6 NE 2 ume poene E i Eu ru aaa jo ome iunt S MEL MGE E i Eo enemies ME MUNI dem pe cum ne Ort Gein a ane C ME CC DNE E i EO remanence aum ginem 20 sen ones E m ees arene a D ME DA MER u i 25 Greasing the Bearings e Insert inner ring with roller and cage assembly in the upright outer ring from above e Grease outer roller end faces e Clean any residues of grease from end face of the inner ring e Position sealing cap e Position outer ring on support ring e Lay press in ring on the sealing cap c e Place parts in the press align and press sealing cap into place d e Remove bearing from the support e Insert spacer ring e Spread the amount of grease specified according to the table along the inner wall of the outer ring e Insert second fully greased inner ring with roller and cage assembly Grease outer roller end faces The end faces of the inner ring must not be greased Position the second sealing cap and press in ring Press bearing together in the press until the sealing cap snaps into place in the outer ring ring turn it over and position it again on the support ring with the sealing cap that has already been pressed into place
14. always have customized adjacent constructions Example of ordering designations for TAROL unit Z 572103 02 TAROL90 154 U TVP Mounting and dismounting device tool set TOOL RAILWAY AXLE Z 572103 02 Tools for fitting and removing the sealing caps TOOL RAILWAY SEALCAP Z 572103 02 Grease cover TOOL RAILWAY GREASER Z 572103 02 Tools for mounting and dismounting TAROL units with inch dimensions TAROL Mounting equipment Tools for mounting and dismounting Grease cover design Tool set the sealing caps C5x9 TOOL RAILWAY AXLE C5X9 TOOL RAILWAY SEALCAP C5X9 TOOL RAILWAY GREASER C5X9 D515x10 TOOL RAILWAY AXLE D5 1 2X10 TOOL RAILWAY SEALCAP D5 1 2X10 TOOL RAILWAY GREASER D5 1 2X10 E6x11 TOOL RAILWAY AXLE E6X1 1 TOOL RAILWAY SEALCAP E6X11 TOOL RAILWAY GREASER E6X11 G7 x12 TOOL RAILWAY AXLE G7X12 TOOL RAILWAY SEALCAP G7X1 2 TOOL RAILWAY GREASER G7X12 GG 61 2 AM TOOL RAILWAY AXLE GG6 1 2 TOOL RAILWAY SEALCAP GG6 1 2 TOOL RAILWAY GREASER GG6 1 2 GG 67 5 TOOL RAILWAY AXLE GG6 7 8 TOOL RAILWAY SEALCAP GG6 7 8 TOOL RAILWAY GREASER GG6 7 8 Tools for other designs are available by agreement Please always consult FAG Industrial Services GmbH before ordering See page 28 for contacts Tools for Mounting and Dismounting Mobile hydraulic unit Axial clearance measuring device Grease dispensing unit For mounting TAROL units 400 V For measuring axial clearance For dispensing measured amounts 50 Hz special voltages on request before mount
15. driver lightly pulled apart by hand and subsequently screwed out of the groove h Dismounting and Repair Cleaning the Bearing Parts Remove residual grease from the parts with a grease centrifuge wooden spatula and lint free cloth Washing machines are used for batch maintenance tasks Washing containers are used for cleaning by hand Inner rings roller and cage assemblies outer ring and spacer ring are cleaned with kerosene or with cleaning agents in a separate washing container The bearing parts are sprayed with light machine oil after cleaning Adapter end caps backing rings and fixing screws are washed in a washing container specially provided for these parts 17 Tools for Mounting and Dismounting Mounting tools for FAG tapered roller bearing units TAROL are also suitable for dismounting cylindrical roller bearing units that have been fully greased and sealed on axle journals Our publication WL 80 250 contains details of additional devices and services for mounting and maintaining rolling bearings These products can be purchased via the external sales representative responsible for your area or via Tool set and tools for mounting individual FAG Industrial Services TAROL sizes for use with a mobile hydraulic unit see page 19 Tools for mounting and dismounting TAROL units with metric dimensions The tools for metric TAROL units are always individually matched since these units
16. e EOAR E 0 66 EET EEE CERE A P UA d ER i Pa dede Hi iR ac RR ee di C gy ci dio di Bede ERO En DA Mc BU ERA TEET on the dial gage will then remain TAROL130 240 0 59 A rahi Sos paar eee aci ie 0 63 dd Sos E de cece fun eta Betas Sas TA aud dul qo S I ANE kh cabo deat epee etai d dra ua aS et pd b dea m ID stationary ACTU TT ET ME le o CMM MM EM M M E WEE PATET EL MM NM a ete clearance on the dial gage The TAROL160 270 0 6 RU CRINE eS 0 75 EENT TAESTE TETAAN YETENE acs TEER d gres didi Us paren ae gw dc cts coh cd rie dde uq ie d measured value is acceptable if TAROL160 280 X 0 6 EERE do did dude pide Oars 0 75 dde Eu d Erg dade AUR doi n RUP die ESSN cree EIER bdo d dad vida Rog Be ewe Ide dat dr dede d dup T eee are equal to within 0 020 mm If the difference is more than The spacer ring is reground if the axial internal clearance is too large 24 0 020 mm repeat the measuring procedure until the measured value can be reproduced If the axial internal clearance is too small a wider spacer ring is selected The matching spacer ring and all the other bearing parts form a unit and must remain together until fitting Greasing the Bearings Use only approved greases High quality acid free greases must be used which are resistant to oxidation and aging Greases should preferably be lithium soap based with an anti corrosion additive Grease should be stored in the sealed heat protective original packagi
17. ed e Position retaining washer with grip Retaining washer must not be in contact with cage or outer ring Rotate the retaining washer to and fro whilst tightening the nut finger tight using the wrench c e Eccentric DOWN i e rotate in a downwards direction e Rotate inner rings by means of the grip approx 12 x 360 until the rollers are in contact with the large rib of the upper inner ring d 23 Measuring the Axial Internal Clearance e Position support ring with dial gage on the outer ring and set dial gage to 0 e e Eccentric UP i e rotate in an Axial internal clearance values for dismantled TAROL units with inch dimensions axial internal clearance of the bearing measured on the work bench TAROL unit Axial internal clearance upwards direction min max min max e Rotate outer ring to and fro Class Size mm mm inch inch approx 10 s459 untiltherollers A ieee inal detache are in contact with the large rib B 41 4 x 8 0 46 0 61 0 018 0 024 K A e E A oe MEME 797 MEN De nmentes vir MN Do mene ihe indi caoran che die ees ee Duo aaa Avy sauce po eee pg aca Wallen sema statloR Ep Qu aie ae o E 762 EE vi E MR oo RR MN nies HO MATURE S MEME 377 eau Du d Cy MN BRAIN RUPEM Ka Ui emitte D o emma RN 7171 oo 5 tar hemeacuredalue al de o aaa S MEME AO MEME Co MM oo S sean aoe acanrade ann COT ai p stu T MEE V EE aaa OE Ly MN A a ena oe Dio seems T vemm oe Repeat the measurement Eccentric DOWN
18. ee AAA PO 19007 oono a A gagra e a oO aac pum T m Srca DZA INS SAE a ee inne E a A y BERRA NA 7 AS i a a OMA DIa ad LC m There are in some cases inch size versions adapted to the requirements of the European area but also new designs that are based substantially on the standards of the UIC The standard greasing is carried out with a grease approved to EN 12081 In relation to the connecting parts the bearings listed represent only a selection from the product range The connecting parts and seals can be agreed for specific customer requirements Cage versions TVP Polyamide cage JP Sheet steel cage Suffixes U Complete unit R Base bearing Load rating DIN ISO 281 Load rating ABEC RBEC C1 Mass Base bearing Typical ordering designation for complete unit Mass TAROL unit Tapered Roller Bearing Units TAROL Key to Designation System Inch size TAROL with dimensions in whole numbers TAROL N XNN X TAROL with inch dimensions in fractions TAROL N N N X NN XXX X XXX LO Example TAROL7X12 U JP Cage type designation Separator hyphen Designation for delivery scope Separator hyphen Inch designation for axle journal length X as a separator Bore code in inches TAROL prefix Example TAROL6 1 2X12 U JP Cage type designation Separa
19. eway indentations are not made noticeable by roughness when rotating the bearing by hand Damage caused by the passage of current Bearings with false brinelling or craters which have been caused by the passage of current cannot be reused Cages and spacer rings Cages may also only be reused if they do not have cracks and deformation If the spacer ring has cracks notches or burn marks it must be replaced 21 Examining the Bearing Parts Seal and sealing cap seat Before assembling the bearing a measurement is made to check whether the seat for the seal or sealing cap on the outer ring still has the required dimension The diameter is measured with an inside micrometer and must be within the specified tolerances TAROL unit with inch dimensions which can be found in the tables Dimension for the seal seat in the outer ring TAROL unit Diameter R Hear min max min max SAAS oleae Class Size mm mm inch inch The end capis examined for Basag 153 924 154402 6060 6067 e i iz P i ion Phe aot 182 499 182 677 7 185 7 192 amallar rmn oc Which AA Yl OQY jj dite ERR PERTOREOS D HEEL ERE PETRI IE QS sangeet ERE RP IP bbb EP LER OM HEP EPQUIF UPPER Eo Per eR C bephd m phe M RPM Ed A DrOP PP pre ORE isi desc 19623 196977 745 7 755 mustpsresbbceiw unc cere tc 209 423 209 077 8 245 8 255 is ep P id t F612 x 12 237 998 238 252 9 370 9 380 e Tne
20. gle operation and is secured by additional parts and bolts Due to the press fit of the unit on a shaft journal of a diameter within the specified tolerances the bearing support achieves the necessary axial clearance TAROL units are filled as standard with greases proven in practice The standard grease in the bearing units with metric dimensions is certified in accordance with EN 12081 Grease approved to AAR is used as standard in the inch dimension units We can also supply TAROL units with relubrication holes in the outer ring on request The relubrication intervals are defined in accordance with the application We supply TAROL units in inch and metric dimensions for all standardized shaft journals on rail vehicles Special dimensions individual parts replacement parts and housing adapters are available by agreement View inside a TAROL unit with inch dimensions View inside a TAROL unit with metric dimensions Backing ring Seal wear ring Spacer ring Bearing inner ring eal B With roller and cage assembly Seal Bearing inner ring Bearing Seal wear ring End cap with roller and outer ring cage assembly Individual parts of a TAROL unit with rotary shaft seals Backing ring Bearing inner ring Spacer ring Sealing cap with lamellar with roller and rings cage assembly Sealing cap Bearing Bearing inner ring End cap with outer ring with roller and lamellar rings cage
21. haxvacanal Crraw THKrOaAaC poenae eToro igehceeqridieenieneterengrerdaenss PPP RERO He PERF REEREIP TOOL EPVPRRHS EPePRPER ena ners Poot PPP IP HEC I PRPHREE RH EHE e hexagonal screw threads uo Cn 237 998 238252 9 370 380 or HON WIR 260 858 26112 10 270 10280 Beepsubleceiun SUE NA o 284 05 28423 1148 1149 dd see A GG 67 284 05 284 23 11 18 11 19 e The locking plates are replaced at Pe rre rm HE TT se UM TS E ONIS TEN EE OEL DE ENCUENTRO CUOI OA aes Agnes eget tars opere PARISER See eee Gate ene Ut every inspection The following applies for inch size bearings broken torn or deformed Dimension for the sealing cap seat in the outer ring The suriaces in the contact area TAROL unit Diameter R of the seal lips must be smooth min max and have no wear To make Size mm mm mounting easier the Inner seal E wear ring must be a press fit in l i TAROL90 154 144 475 144 525 the backing ring interference i C A BUD teen No et neemiom aaa 0 05 mm to 0 175 mm E L MN peo e The backing ring must notbe ae 175 a a e e PEN ETC Be duc ue TAROL110 180 non standardized damased The SUT radius IS aah inen E RAEES E EA aae iin os aniretiigonls dated dealer Aiea ar iE Era l TAROL120 195 182 56 182 63 checked with a gage The gage ne a Meis 1 ee ail eriactoaani re must be in contact on both sides cee PIER 22 FRRRRREREONREREERNREPRREERRR The seals with the vulcanized rubber 30 caeci
22. ing of grease for lubricating rolling universally applicable in combi Ordering designation for base bearings The metering range is nation with bearing specific tool device and sized set between 10 and 133 cm sets see page 18 TOOL RAILWAY CLEARANCE BASIC Ordering designation Ordering designation TOOL RAILWAY CLEARANCE TOP ARCA PUMP 25 for 25 kg container TOOL RAILWAY AGGREGATE ARCA PUMP 180 for 180 kg drum Plate press Visual inspection device For pressing in and pressing out For visual inspections of the running Seals surfaces of rings and rolling elements Ordering designation after dismantling TOOL RAILWAY PLATEPRESS Ordering designation TOOL RAILWAY INSPECTION DEVICE 19 20 Examining the Bearing Parts In order to examine the condition of the bearing the bearing outer ring and the rows of rolling elements of TAROL units can be checked after dismantling A device with a lamp and a magnifying glass see visual inspection device on page 19 enables the raceways of rings and rolling elements to be viewed The raceways are inspected for wear marks and indentations caused by foreign particles If parts are found to have defects or damage a decision must be taken whether they can be reused or whether they must be repaired or replaced with new parts For a correct assessment it is important that the individual parts of a bearing that has been disassembled and cleaned are not mixed with parts from anothe
23. ng The specified amount of grease may only be introduced to the bearing when it is disassembled Pressing grease into the bearing when itis mounted on the shaft is not permitted TAROL units in the NFL design no field lubrication have no lubrication nipple and no screw plug in the end cap The bearing unit is filled with sufficient grease for the entire kilometric performance until the next maintenance interval We supply TAROL units with a relubrication facility on request No contamination dust sand chips ashes fibers lint and other contaminants must be allowed to enter the grease or come into contact with bearing parts when greasing The end faces of all bearing parts which come into contact with the shaft after mounting the unit must remain free from grease The specified amount of grease for an inner ring with roller and cage assembly is introduced using a grease dispensing unit a e Lay inner ring on the base plate of the unit e Fit the grease distributor of the dispensing unit and introduce the amount of grease according to the table b The end faces of the inner ring must remain free from grease Lubrication of TAROL units with inch dimensions Amount and distribution of grease for initial or subsequent filling Lubricants according to AAR specification M942 must be used TAROL unit Amount of grease and grease distribution in the bearing unit Outer Innerring with Space between Tot
24. ocking plates are fitted bend tabs of the locking plate away from the side faces of the screw heads e Remove screws e Remove end cap without removing the seal wear ring Removing the unit e Screw mount guide bush using centring bush e Push spindle without lock nut through the tubular piston of the hydraulic unit and align with the shaft a e Screw spindle into guide bush b e Position drawing frame with an insert suitable for the extractor shoe e The extractor shoe must be in contact with shaft behind the shaft shoulder c e Secure the extractor shoe with a crane to prevent damage to the shaft caused by the extractor shoe following dismounting e Operate hydraulic unit e Rotate the outer ring to and fro by hand during removal to prevent stresses occurring in the bearing e Switch off the hydraulic unit following the removal process e Lift off drawing frame and place to one side e Screw spindle out of the guide bush e Move hydraulic unit to one side e Remove bearing from guide bush e Unscrew guide bush 14 Dismounting and Repair The TAROL unit is dismounted from the shaft journal for inspection repair and lubrication See section Dismounting the TAROL Units Firstly remove the seals Then clean all bearing parts and examine each part for damage Measure the parts and the axial internal clearance of the bearing The unit is then reassembled with inspected or new parts
25. r bearing Surface corrosion Surface corrosion on bearing rings and rollers appears as rust discoloration etching and pitting e Rolling bearing parts do not need to be scrapped if discoloration and spots can be removed with fine emery cloth Particles of abrasive medium must always be completely washed out of parts The parts can be reused if etching marks caused by water and acid can be removed by polishing without leaving behind large indentations Polishing disks and paste are used for polishing corrosion marks In favorable cases spots can be removed using this method If rust and corrosion have resulted in deeper pitting the bearing rings and rollers cannot be reused Bearing parts which show signs of heat discoloration must be scrapped False brinelling on rollers False brinelling in the outer ring raceway Rolling element indentations Rolling element indentations false brinelling in the raceway surfaces are caused by high shock loads or vibrations while stationary False brinelling has formed at the spacing of the rolling elements on an inner ring raceway Examining the Bearing Parts Fatigue damage Fatigue damage on the raceways is made noticeable by pitting Bearings with fatigue damage should generally be replaced Raceway indentations caused by contamination Contamination in the lubricant can also result in indentations in the raceway The parts can be reused as long as the rac
26. tor hyphen Designation for delivery scope Separator hyphen Inch designation for axle journal length X as a separator Bore code expressed as a fraction in inches values separated by obliques Separator hyphen Part of bore code in whole numbers in inches TAROL prefix Tapered Roller Bearing Units TAROL Key to Designation System Metric TAROL TAROL NNN NNN X XXX Example TAROL130 230 R TVP pL Cage type designation Separator hyphen Designation for delivery scope Separator hyphen Outside diameter in mm Separator oblique Bore diameter in mm TAROL prefix The ordering designation is preceded by a drawing number for customer specific designs e g F 803507 01 TAROL7X12 B TVP or Z 517874 04 TAROL100 165 U JP Designation for delivery scope Available cage types R Base bearing without grease and seal JP Sheet steel cage B Base unit greased and sealed TVP Polyamide cage U Complete unit base unit including adjacent components Scope of delivery variants using the example of an inch size bearing R left B center and U right Prior to Mounting The mounting location must be clean dry spacious and separated from machine tools welding equipment or equipment operated with compressed air Shaft journal inspection e Thoroughly remove all contami nation chips and the anti corrosion protective coating Smooth blow and corrosion marks with a fine abrasive medium The
27. unit to one side e Where locking plates are fitted with the specified tightening e Remove fitting sleeve bend over both the tabs of the torque and securing them with e Unscrew guide bush from the locking plate on all end cap the locking plates mount the end shaft journal d screws f cover on the end cap e Screw end cap together with retaining element locking plate or washer onto the end face of the shaft Tightening torque of the end cap screws for TAROL units Tightening torque of the end cap screws for TAROL units with metric dimensions with inch dimensions Screw size Tightening torque TAROL unit Thread Tightening torque Normal screws Self retaining dimension of with retainer screws end cap screw Tolerance 4 Tolerance 5Nm Class Size Nm ft lbs Nm B44 x 8 3 4 inch 156 115 M12 75 80 E aaa e Ta enam A canna D usen e EE ME TO MERE VE beni unn iiim Se mre TE E LU M LLLI PUn gene ee eant ee TP ME ro ME TU MEE d C MEE MA MUS 7 M QUE MN hLLLLUEE d Eurer Panda AAT MEE P UAM E eo re A EE 7 d EE p GG 6 RO RIAL Heinch 802 poo ERU CES 370 TUE The specified tightening torques are standard values EET TEE bead ack ETE ET a eA Hehe EU ERU RO ECCE EET EY for axle end cap parts supplied by FAG Values for components from other suppliers may differ 13 Mounting and Dismounting Dismounting the TAROL Units Removing the end cap e Clean bearing and adjacent parts e Dismount end cover where fitted e Where l
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