Dynaflex Elastomeric Flexible Couplings LCR User's Manual
Contents
1. DAN AN ae ON RO n Onn m Gis OOOMMINGtem Page 95 of 124 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Dynaflex Spool Type Couplings Rated 5 to 1000 hp at 2000 rom LORD Dynaflex Spool Type Couplings provide excellent protection against destructive torsional vibration in high torque drive systems These couplings are customer assembled using bonded flexing spools from LORD and bolted between customer supplied metal hubs Spools should be placed around recommended bolt circle on hub Bonded spools can be installed or replaced with minimum effort Coupling assembly has torsional deflection of 2 under rated torque Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 96 of 124 Dynaflex Spool Type Couplings Table 1 Specifications and Dimensions Spool Part A B Thread Minimum Bolt Circle Diameter for Number of Mounts in Notes Maximum recommended misalignment 1 82 inch parallel 1 angular It is suggested that all designs for Spool Type Flexible Couplings be reviewed with Coupling permits wide latitude in shaft lengths However sufficient spacing between LORD Corporation shaft ends should be provided to allow for shaft end play Construction Rubber elements LORD does not supply hubs elements only Metal parts steel Flexing element environmental resistant elastomer2. 5 Oe Se 9 ee tas A Se eS pre Oe ee Please consult LORD engineering for application review It is advisable to refer to drawing of coupling before ordering since it is not practical to show all details in this catalog Definition of Part Numbering System Torsional Stiffness Attachment Variation X Torque Requirements 63025 x hp rom Torque lb in Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 116 of 124 Dynaflex LCD Series Couplings Installation Guide Specifications Materials The elastomer used in the Dynaflex LCD series Coupling is a high quality natural rubber which meets LORD specifications available upon request and exceeds SAE standards Natural rubber is used because of its excellent physical properties such as tensile strength tear and abrasion resistance fatigue resistance and low temperature characteristics The elastomer to metal bonds are even stronger than the elastomers Standard LCD catalog parts are all made in two stiff nesses of natural rubber The A elastomer is per LORD spec MAPO92 having a durometer of approximately 45 The C elastomer is LORD Spec MAPO94 having a durometer of approximately 57 The metal parts for this series are of alloy steel or ductile iron Environmental Extensive experience with similar parts indicates that heavy duty Dynaflex couplings will perform satisfactorily when exposed to the normal fluid temperature and other env
3. ea 8 500 215 90 7 875 200 02 e 5 16 18 190 7 1 2 9 500 241 30 8 750 222 25 5 16 18 200 3 10 375 263 52 9 625 244 48 3 8 16 255 10 12 375 314 32 11 625 295 28 3 8 16 290 11 1 2 13 875 352 42 13 125 333 38 pa 3 8 16 355 14 18 375 466 72 17 250 438 15 1 2 13 405 16 20 375 517 52 19 250 488 95 1 2 13 460 18 22 500 571 50 21 3875 542 92 5 8 11 530 21 26 500 673 10 25 250 641 35 12 5 8 11 a 28 875 733 42 27 250 692 15 3 4 10 To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 118 of 124 Typical Installations Figure 10 Engine Flywheel to Keyed Figure 11 Flywheel to Flanged Shaft Direct Shaft Direct LCD 25 Series Engine Flywheel Housing Figure 12 Flywheel to Flanged Shaft Direct Figure 13 Flywheel to Internally Splined Shaft LCD 01 Series Free Floating Splined Connection Flywheel Flywheel A Splined Shaft with Flanged Shaft g _ Flanged Connection Sima Y p i LCD 25 Series LCD 01 Series Figure 14 Flywheel to Adapter to Coupling and Figure 15 Stationary Engine to Load by Use Through an Internally Splined Connection of a Pillow Block on a Common Frame Permits _ Engine Flywheel Housing Large Drive Angles pate Flywheel to Coupling _ LCD 01 Series Na
4. HOLES ELASTOMER ka T a Dy n a f FLANGED INNER N NUMBER OF HOLES MEMBER WITH K HOLES L NUMBER OF HOLES 7 TAPPED HOLES T H _ Note 0400 04 has tapered inner member 0600 and above do not have tapered inner member TA T Figure 7 Typical Dynaflex LCD Composite Outer Member 0075 With Tapered Inner Member K HOLES L NUMBER OF HOLES H j M HOLES N NUMBER OF HOLES LTAPERED INNER E APER a M HOLES MEMBER FOR SPLIT O PER FOOT OF N NUMBER OF HOLES TAPER BUSHING LENGTH Note The LCD 0075 13 design is the same as the 20 Series except the outer member flange O D is very small OP OC Figure 5 Typical Dynaflex LCD Coupling ai XX Series Type Il Housing Couplings 0075 B 0150 0200 0300 With Flanged Inner Member PK HOLES D L NUMBER OF HOLES F 5 16 18 UNC 2B THD j Aen 2 PLACES EQUALLY SPACED HOUSING A Table 1 Split Tapered Bushings ee OP Dynaflex Browning Bushing LCD Series Bore Range Coupling Part P N Type 1 Dia Type 2 Dia A MEMBER WITH i N NUMBER OF HOLES Y seca ELASTOMER Application Note Sustained operation at torsional resonance can produce vibratory torques which might cause damage to the coupling and other driveline components Please consult LORD Engineering for application review and approval A part s listing in this catalog does not guarantee its availability To do
5. nese h Elastomeric Flexible Couplings Featuring Dynaflex Shear Type Couplings Dynaflex Spool Type Couplings Dynaflex Bushing Type Couplings Dynaflex LCR Series Couplings Dynaflex LCD Series Couplings Efficient power transmission and driveline component durability are among powertrain designers most impor tant concerns Increased durability and up time are two characteristics demanded by purchasers of today s complex and expensive machinery These demands can only be met with reliable trouble free smooth running powertrains free from damaging loads which compro mise component life A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf DANA el NAO n One m Cis OOO MMINGtem Page 87 of 124 Powertrain component life is determined by the load spectrum each component will experience during the machine s service life Reciprocating engines such as spark ignited gasoline and compression ignited diesels produce alternating torque loads which when super imposed on the steady driving torque create alter nating stresses in driveline system components which shorten component life and reliability High transient start up torques and misalignment caused by skewed rotational axes between driver and driven in electric motor hydraulic and pneumatic drives also cause high imposed forces on driven components These
6. 60 000 50 000 7 000 791 7 000 10 000 10 000 12 500 12 500 675 000 1 250 000 Use Wood s Sure Grip Bushing type SK or equivalent 791 28 000 3 164 28 000 3 164 1 130 40 000 1 130 40 000 90 000 1 412 60 000 4 520 4 520 6 780 60 000 6 780 1 412 2 260 2 825 3 616 450 000 5 650 7 345 See detail drawings by part number for tolerances Pilot diameter tolerances are 000 005 in for A Series diameters and 005 000 in for C Series diameters Tapered Refer to SAE J620c for flywheel numbers 6 1 2 10 11 1 2 16 to SAE J927a for numbers 60 80 100 120 160 See Tables 5 and 6 Unless otherwise noted Xx dim 0 030 in 0 762 mm Xxx dim 0 015 in 0 381 mm Sure Grip is a trademark of Altra Industrial Motion Inc A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf DANA ae ONO n Onm m Gis OOOMMINGtem Page 113 of 124 Capacity per Torque Rating Approximate Torsional Rate Axial Rate Radial Rate 100 rpm Ty Slip Torque Ky Ka Kp hp kw ibin Nm ibin Nem tb in rad Nem rad Ibin Nimm Ibin Nimm 5 800 10 000 10 000 2 486 1 750 11 500 2 012 4 520 4 000 20 000 3 500 3 955 2 600 14 000 2 450 6 780 5 000 22 000 3 850 5 650 3 500 612 11 500 2 012 10 170 8 800 1 540 20 000 3 500 6 780 1
7. 9000 Torque Requirements 1121 1576 LCR 450 600 0114 E afore vel a val ea mol vol ve eo ool ve ml er we of wr om Torque Ib in Characteristics E Inertia 226 0 Part Number LCR 275 400 004A 69 85 LCR 275 400 009A 226 0 69 85 240 430 0 240 69 85 1 62 LCR 275 400 017A CRD aI066 on fe ase e fee nafea a i om or l l l l 2 14 LCR 400 800 060A 814 0 LCR 400 800 115A 814 0 LCR 400 800 135A 111 9 2 74 4 00 8 4 00 0 51 4 00 craeoooaa on loan AAE LORD does not supply hubs LORD supplies ring elements only See detail drawings by part number for tolerances Does not include bolts or flanges A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf 1 00 1 00 41 15 1 75 AEN 69 60 1 50 2 00 69 60 69 60 25 40 25 40 44 45 38 86 38 10 38 10 50 80 0 91 0 91 0 91 1 00 1 00 23 11 23 11 23 11 25 40 40 25 40 25 40 25 40 0 1 0 12 0 12 0 12 63025 XNP rom baat 0 75 3 18 3 18 19 05 3 18 1 50 38 10 Dm 3 18 1 25 0 12 3 18 1 75 31 75 31 75 44 45 Rev 1 10 08 DANA e ONO n On m G M OOLO Mm MINIGtem Page 107 of 124 Figure 4 Part Dimensions OC F eb TYPICAL Figure 5 Single Coupling Arrangemen
8. J 1211 5 1 J 1211 6 12 0 500 0 500 J 1211 6 18 0 625 0 625 1 38 1 81 1 05 2 69 3 4 J 1211 6 14 0 625 0 750 J 1211 7 16 0 500 0 750 J 1211 7 9 0 625 0 625 1 50 2 00 1 11 2 88 1 J 1211 7 3 1 00 1 00 Notes Maximum recommended misalignment 1 32 inch parallel 2 angular Standard Construction Hubs steel Bores as listed Set Screws one per hub furnished but Intrusion should not exceed E bore length dimensions not installed Flexing Element neoprene 1 00 1 38 0 91 PAS 1 3 3 0 87 1 4 20 1 13 1 63 1 00 2 50 1 2 NO O 1 33 1 4 20 ee O 2 00 5 16 18 IS 2 66 5 16 18 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DAN AN e SO m Ona Gis eOOLOMMINIGtem Page 93 of 124 Figure 1 Part Dimensions Table 2 Standard Bore Tolerances from 0 000 to 0 499 0 001 0 000 from 0 500 to 0 749 0 0015 0 0000 from 0 750 to 1 499 0 002 0 000 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 94 of 124 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08
9. 224 000 Ib in rad 4 2 Caution Shaft length must be considered for potential whirl problems Recommended Misalignment Limits Bushing Arrangement Misalignment Dependent on shaft length 10 to 30 in Single Coupling Double Coupling Figure 2 Series Arrangement Rev 1 10 08 DANA e ONO n One die OOLO Mm MINIGtem Page 101 of 124 Dynaflex Bushing Type Couplings Table 1 Parallel Arrangement Selection lb in BUSHING COUPLING SELECTION CT Curves Based on Compression Torque T 6 N eR e d e Ib in Stress On 200 psi Where O Comp Stress psi d joint I M 0 D N No of Joints Socket Length R Bolt Circle Radius Torsional Rate K NR Kp o O p O O Where r radius of rubber joint mm Joint Minimum B C Dia D For Number of Joints Number win aae er ae e iw a 2 J 6250 1t 6 800 1 25 1 43 1 77 2 13 2 50 2 89 3 27 3 68 4 05 4 45 4 85 J 5915 587 12 000 2 00 3 00 3 54 4 26 5 00 5 76 6 52 7 32 8 08 8 90 9 68 J 6250 2 4 8 12 16 20 24 28 32 36 40 44 48 52 56 J 5915 58 15 30 45 60 75 90 105 120 135 150 165 180 195 210 Bushing Part No Torque Ib in x 100 t Non Stock Item Table 2 Series Arrangement Selection BUSHING COUPLING SELECTION N x N SERIES Curves Based on Compression otress Op 200 psi NxN 2x2 3x3 12 10 S 8 O Torque T o 5 R e d e Ibyin 6 CO Where Op Comp St
10. 750 306 12 500 2 188 12 430 5 700 1 000 11 290 1 600 12 500 2 188 14 690 2 000 350 14 000 2 450 28 250 6 500 1 140 30 000 5 250 28 250 3 250 600 20 000 3 500 50 850 9 000 1 575 35 000 6 125 40 680 4 500 788 28 000 4 900 73 450 13 000 2 275 50 000 8 750 76 275 8 500 1 488 58 000 10 150 141 250 15 000 2 625 100 000 17 500 It is advisable to refer to drawing of coupling before ordering since it is not practical to show all details in this catalog 25 000 4 375 Definition of Part Numbering System Torsional Stiffness Part Type hp Rating Variation LCD 0400 a A XX Torque Requirements Attachment Variation Torque lb in 63025 x hp rom Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Table 3 Specifications and Dimensions Part Number Size Variation LCD 0075 XR A XXR A LCD 0075 ag XXR C LCD 0075 X C LCD 0150 XR A XXR A LCD 0150 XR C XXR C LCD 0200 16 LCD 0200 21 16 LCD 0300 33 18 LCD 0300 33 18 LCD 0400 45 20 41 48 21 77 LCD 0400 45 48 LCD 0600 X A A LCD 0800 X A 20 41 LCD 1000 X A LCD 1500 LCD 2000 Please consult LORD engineering for application review approval and availability Prolonged exposure to temperatures in the 0 F range and below produces a significantly reduced slip torque prior to driveline warm up This condition may result in the coupling s inabilit
11. Adapter Plate Wy Flanged Stub Shaft Universal A r LCD 25 Series Ni Pillow Joint Yolk INTAN TE ZS pt F i IT EF Large Angle Capability r Tia a E A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DANA ae ONO mO MOO MMINIGtem Page 119 of 124 Figure 16 Vehicle Engine with Large Angle Drive Requirements LCD 01 Series Bolt on Engine Flanged Spline Adapter Go Joint Yolk Large Angle Capability Bearing Support ltl il Engine Housing Figure 18 Stationary Equipment Having a Tapered Shaft Connection Engine Flywheel LCD 25 Series Stationary _Generator Compressor etc _ Figure 20 Two Dynaflex LCD Couplings in Series for Increased Flexibility in All Directions A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Figure 17 Flywheel to Flanged Hub to Splined Shaft Free Floating Splined Connection Engine Flywheel a Splined Hub Bolted on Figure 19 Shaft to Shaft Arrangement Using Split Taper Bushings at Both Sides os LCD 25 Series Split Taper Bushing Figure 21 Stationary Equipment Having Input Shaft Attached to Coupling Inner Member LCD 01 Series i Stationa
12. Load Deflection Curves 0 04 8 12 Deflection in 16 20 Figure 3 Radial Load Deflection Curves 08 12 Deflection in Rev 1 10 08 Dynamic Torsional Stiffness Ko The dynamic torsional stiffness is higher than the static Stiffness at room temperature When the LCD Series Couplings are attached to diesel engine flywheels the elastomer gets warm At an operating temperature in the 170 to 200 F range the dynamic stiffness is nearly the same as the static stiffness at room temperature The stiffness values shown in the performance characteristics chart are for computer modelling and in other types of torsional analysis work Static Load Deflection Characteristics of LCD 0400 01 A amp C and LCD 0400 04 A amp C Curves of other LCD parts show similar characteristics and are available upon request A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf DAOA Anam mS O nOA MMINGtem Page 111 of 124 Typical Applications Dynaflex LCD Series Couplings are useful for a wide range of rotary drive applications from off highway truck drivelines to auxiliary compressor drives on diesel loco motives The soft torsional stiffness of these couplings makes them ideally suited for diesel applications with remotely mounted driven components Typical applica tions include Typical End Product Applic
13. unwanted forces loosen bolted joints and cause spline fretting clutch disk wear bearing failure gear tooth fatigue and shaft fatigue among an array of other problems Elastomeric flexible couplings solve these problems They prolong driveline component life because they reduce the magnitude of imposed loads attenuate vibra tion in multiple planes accommodate misalignments in multiple planes and act as barriers impeding noise created by meshing gears engaging clutches etc Elastomeric flexible couplings are also maintenance free They require no lubrication or other maintenance throughout their service life Among the large variety of coupling types available LORD Corporation s elasto meric couplings offer the most comprehensive package of benefits available to the powertrain designer LORD Corporation s product lines include five different elas tomeric coupling styles which cover a wide range of application requirements Application Application requirements suggest the coupling style needed to optimize powertrain performance and component longevity Misalignment accommodation torsional vibration isolation transient shock dissipation and required service life are important parameters to consider when selecting a coupling to fill specific application requirements Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS LORD engineers can assist you with selecting an appro priate coupling type and configuration Wit
14. MOO MMINIGtem Page 115 of 124 yera Characteristics Nominal No No Counter Counter Bore Bore No No Counter Counter Bore Bore Use Wood s Sure Grip Bushing type SK or equivalent See detail drawings by part number for tolerances Pilot diameter tolerances are 000 005 in for A Series diameters and 005 000 in for C Series diameters Tapered Refer to SAE J620c for flywheel numbers 6 1 2 10 11 1 2 16 to SAE J927a for numbers 60 80 100 120 160 See Tables 5 and 6 Unless otherwise noted Xx dim 0 030 in 0 762 mm Xxx dim 0 015 in 0 381 mm Sure Grip is a trademark of Altra Industrial Motion Inc A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Fits SAE Flywheel N No of Holes 0 330 8 38 3 8 16 UNC 2B 0 394 10 00 3 8 16 UNC 2B 0 394 10 00 3 8 16 UNC 2B 0 394 10 00 3 8 16 UNC 2B 0 394 10 00 3 8 16 UNC 2B 0 660 16 76 3 8 16 UNC 2B 0 660 16 76 No 11 1 2 OR 60 80 100 11 1 2 OR 60 80 100 11 1 2 OR 60 80 100 11 1 2 OR 60 80 100 o0 u o0 oO 1 2 13 UNC 2B 3 8 16 UNC 2B 60 80 100 1 2 13 UNC 2B 3 8 16 UNC 2B 60 80 100 an OO SEECCERE OOo ERGS xo om sm om os im se ou wo ie sormen accor ee Ae Som See se Sees Me S een seme Be
15. Table 2 Coupling Configuration Capacity Chart 20 7 F F F Number of Mounts LLL LI EDT LLL CL HYG a0 I 77 Zann WY TT TTT WGA TT 7 Zee Torque Ib in x 100 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DAN AN ae NAO n On AOT MMINIGtem Page 97 of 124 Figure 1 Part Dimensions J 4624 1 Figure 2 Part Dimensions J 3424 2 Figure 3 Part Dimensions J 5425 1 Figure 4 Part Dimensions J 5682 1 a Titty CTL city YH YY l E At A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 98 of 124 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DAN AN a O n One m lt OOO MMINGrem Page 99 of 124 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 Dynaflex Bushing Type Couplings Rated 10 to 600 hp at 2000 rom LORD Dynaflex Bushing Type Couplings accommo date misalignment cushion torsional shoc
16. ation Mining Dump Truck Increases Engine and Transmission Life Diesel Locomotive Eliminates Accessory Driveline Failure Portable Air Compressor Replaces Short Lived Gear Coupling Smooth Operation 4 Wheel Drive Farm Reduces Noise and Extends Drive Train Tractor Life Military Vehicle Eliminates Accessory Shaft Breakage Prevents Driveline Failure Mining Dump Truck Prolongs U Joint Life In addition Dynaflex LCD Series Couplings have been used in these types of applications e Main Drive Engine Generator Engine Transmission Electric Motor Pump e Accessories Starters Alternators Engine Compressor Engine Pump Electric Motor Compressor Fans and Blowers Power Take Offs Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 112 of 124 Selection Guide Figure 6 Typical Dynaflex LCD Coupling This selection guide can be used to determine the size 01 Series Type Ill Housing Couplings 400 hp and series coupling to suit your general requirements and above K HOLES Final selection of the specific coupling to satisfy all of L NUMBER OF HOLES the application requirements generally necessitates a system engineering analysis These computerized analyses of torsional systems can be provided by LORD r Corporation s Engineering Department Figure 4 Typical Dynaflex LCD Coupling X Series Type I Housing Couplings 0075 0150 0200 0300 With Tapered Inner Member M
17. cluding bearings from fatigue failure e Long service life Dynaflex LCR Series Couplings have proven themselves under demanding service conditions e Maintenance tfree elastomer flexibility accommo dates all motion without wear eliminates the need for lubrication e Noise reduction no metal to metal contact elas tomer attenuates structure borne noise and isolates vibration from components that would act as noise generators e Systems Engineering LORD has in house computer capabilities for multi torsional analysis to assist in oroper coupling selection DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 104 of 124 Typical Applications Accommodating axial misalignment along the axis of Dynaflex LCR Series Couplings are useful for a wide shafts without high reaction forces is a unique feature range of rotary drive applications from lawn and garden of ring couplings Figure 2 shows this load deflection tractors to large construction equipment including U joint relationship replacement Typical applications include Ring type couplings accommodate parallel misalign ment with relatively low radial reaction forces imposed on driving and driven equipment Figure 3 shows typical radial load deflection curves Load deflection charac teristics for other LCR couplings are available upon equest Vibratory Rollers Absorbs High Torsional Shock Loads in Eccentric Drive Units Figure 1 Typical Load Deflection Curves On amp Of
18. conditions found in drive line systems Special oil resistant elastomers can be provided where total or partial oil immersion is necessary For operation in ambient temperatures exceeding 170 F 77 C consult LORD Engineering Misalignment Misalignment capability applies for speeds up to 3500 rom Operation up to 7000 rom is permitted with reduced misalignment consult LORD Engineering Note For speeds above 4000 rpm shielding is required and or balancing of assembly may be required Installation Normal installation involves simple through bolt attachment to flanges For flywheel attachment appli cations metal inserts can be tapped counter bored to permit easy installation A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf DANA e ONO n Ona Gin OOLO Mm MINIGtem Page 105 of 124 Remote Driven Units Multiple U joint shafts especially longer shafts and the speed at which the shaft rotates especially higher rom s can create complex stability problems To assure satisfactory coupling performance all design layouts for remote mounted driven units should be reviewed by LORD Engineering LORD analytical capability is only one part of the engineering service available on all coupling applications LCR ring type couplings can be selected based on horsepower or maximum torque requirements The data li
19. e half of the parallel arrange ment The coupling is also more flexible When high torque and small space are the control ling factors the parallel arrangement is recommended When misalignment is the controlling factor the bushings should be applied in series arrangement Table 1 provides selection criteria for parallel arrange ment Table 2 provides data for the series arrangement Bushing selection is dependent upon torque require ments angular parallel and axial misalignments as well as bolt circle diameter number of bushings and bushing size The torque values shown on the charts are nominal The bushings are capable of withstanding higher torques due to the shock loads or other short duration surges Figure 1 Parallel Arrangement A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Page 100 of 124 Torsional Flexibility Bushing type couplings are relatively stiff torsionally compared to other elastomeric couplings The torsional spring rate of a coupling assembly can be calculated by using the equation and data provided on the curves Example Required torque capacity 3400 Ib in Misalignment Angular 1 75 Axial 1 8 in Parallel 1 32 in Proposed Coupling 7 x 7 Series J 5737 1 N 7 8 in bolt circle Torsional Spring Rate Kg _N_ R K 2 Kg Z_ 4 4000
20. early fatigue failure e Noise reduction no metal to metal contact elasto meric barrier reduces gear noise transmission and motor hum between shifts e Maintenance tfree elastomer flexibility accommo dates all motion without metal to metal wear elimi nates the need for lubrication e Long service life Dynaflex Shear Type Couplings have proven themselves under demanding service conditions Elastomers resist effects of abrasive mate rials oil and grease e Attachment shear type flexible couplings are avail able in an assortment of bore sizes Refer to Table 1 e Constant velocity inherent design properties produce a rotational constant velocity Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 92 of 124 Dynaflex Shear Type Couplings Table 1 Specifications and Dimensions Standard Bore arias Set Coupling Part Diameters c D Ref E Ref F aes ar Number in in in in i Ib in deg Size SK 1947 6 SK 1947 1 50 0 053 5 40 SK 1947 19 SK 1947 29 J 1211 1 2 0 187 0 187 1 16 0 17 10 24 J 1211 1 1 0 250 0 250 J 1211 2 2 J 1211 2 11 J 1211 2 6 l 0 75 1 00 0 72 t o 1 8 5 0 33 10 24 J 1211 2 3 l i J 1211 2 12 l J 1211 2 1 i i J 1211 3 4 l J 1211 3 14 l J 1211 3 12 l i 0 88 129 0 88 2 13 1 4 10 1 4 20 J 1211 3 2 l J 1211 3 8 l J 1211 3 1 l l JA21 1242 J 1211 4 35 Sane oe J1211 4 14 J 1211 4 4 Jar AA J 1211 5 3 J 1211 5 4 J 1211 5 2
21. f Highway Isolates and Protects Vehicles Auxiliary 2500 Driveline Systems Industrial Machinery Provides Inexpensive Coupling for 9 LCR 300 600 046A Maximum Angular Misalignment and 000 Torque Rating Vibration Control 1440 b in S and Provides Torsional Flexibility s Dynaflex LCR Series Couplings were designed and 1000 developed by LORD and have been in service since the 7 500 a early 1960s The basic concept was intended for specific applications requiring low cost flexible couplings to 0 accommodate all forms of misalignment and provide 0 P 4 6 8 10 12 torsional resilience Typical Angle deg The coupling design incorporates metal inserts bonded Figure 2 Axial Load Deflection Curves in an elastomeric ring which loads the flexing element in compression to transmit torque Misalignment motion is accommodated by deflecting the elastomer in shear which allows extreme misalignment without high reaction forces They are ideally suited for light duty elastomeric universal joints particularly where noise reduction or shock attenu fA yt yy ation is required LCR 300 600 046A Absence of metal to metal contact through the coupling eliminates the need for lubrication and maintenance 0 0 1 02 03 04 05 0 6 while also reducing noise transmissions Installation en is accomplished by insertion between simple parallel Figure 3 Typical Radial Load Deflection Curves flanges This lightweight coupling element can be 1200 a
22. h extensive analytical capability and years of experience in designing products for powertrain vibration shock and motion control LORD engineers offer everything from simple application assistance to complex system analysis and specialized product design Torsional vibration transient shock and misalignment load analyses require specialized computer programs and engineering experience LORD engineers can analyze your system and recommend the right solution whether it s a selection from the standard product line or a custom design LORD Corporation s standard product lines of elasto meric flexible powertrain couplings are presented in the following sections Many variations of standard products are available but not listed as standard Main drive fan drive PTO and accessory drive couplings are available in a host of custom designs and variations of standard products LORD engineers are ready to helo you meet your specific application requirements with custom designs where necessary Product Lines LORD offers five major lines of elastomeric flexible couplings Standard lines are presented on the following pages In addition to the standards listed many variations are available in each product line Dynaflex Shear Type Couplings LORD Dynaflex Shear Type Coupling features a durable elastomeric flexing element bonded between two hubs These couplings are designed for fractional horsepower applications requiring smooth sta
23. ironmental conditions found in driveline systems For operation in ambient temperatures exceeding 170 F 77 C consult LORD Corporation Dynaflex LCD Series Couplings are often recommended for use in applications where the temperature is above 170 F 77 C Temperatures above 200 F 93 C could present problems Customers should know what the ambient operating temperature is and whether addi tional air circulation can be provided Consultation with LORD Corporation engineers is necessary if the ambient temperature is above 170 F 77 C A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Misalignment Misalignment capability applies to speeds up to 2500 rom Operation up to 3500 rom is permitted with reduced misalignment Consult LORD when a potential application requires special consideration At normal rated operating conditions the Dynaflex LCD Series Couplings are designed to accommodate misalignment Angular 1 1 2 maximum Parallel 1 64 inch Axial 1 16 inch dynamic 1 8 inch static Testing Performance Periodic load deflection tests are run to assure consistency of torsional spring rate and slip torque characteristics Damping Coefficient Cg The natural rubber elastomer used in LCD couplings offer hysteresis damping which dissipates energy at resonance The damping coefficient is a f
24. iving and driven masses e How much misalignment must the coupling accommodate angular parallel axial e How much if any axial thrust will be on the coupling Design Parameters e What space Is available for the coupling maximum length diameter e What is the maximum weight the coupling can be if weight is limited e What are the shaft diameters and method of attachment keyway spline set screws flange e What special features are required Inner member design hubs flanges splines etc Outer member design pilot diameter bolt pattern etc A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Remote Driven Units Multiple U joint shafts especially longer shafts and the speed at which the shaft rotates especially higher rom s can create complex stability problems To assure satisfactory coupling performance all design layouts for remote mounted driven units should be reviewed by LORD Engineering LORD analytical capability is only one part of the engineering service available on all coupling applications What Else If your application is unique or unusual include any information that you believe will have an effect on the coupling design or selection If you have any questions as you prepare this data call us See following page for data form Reference Literature from Lord Corp
25. k and do not generate or transmit noise Since relative motion is taken in the elastomer rather than sliding metal surfaces no lubricant is involved or ever required Dirt and grit cannot effect the coupling bushings The elastomer has been compounded to provide long service life Typical applications include driveline installations where multi directional misalignment must be accommodated and torque loads are medium to high Specification selection and dimension information provided on the following pages facilitate design of the coupling assembly The bushings are standard parts and the flanges can be supplied by the end user or by LORD as a special design DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Selection Guide Compression bushing type couplings are assembled by pressing the elastomeric bushings into sockets of a coupling flange Once assembled the coupling can be used two ways e Parallel Arrangement The driving shaft can be connected to all of the bush ings and the driven shaft connected to the coupling flange This arrangement loads all bushings in parallel and produces maximum torque capacity and a less resilient coupling e Series Arrangement This arrangement requires an even number of bush ings per flange Mating flanges of the driving and driven shafts are attached to alternate bushings This arrangement transmits the torque through the bush ings in an N x N series arrangement thereby making the torque capacity on
26. ns including parallel and series arrangements Dynaflex LCR Series Couplings LORD Dynaflex LCR Series Couplings features an elastomeric ring with bonded bush type inserts allowing various attachment configurations These couplings offer a soft torsional spring rate which permits smooth transmission of driving torque while attenuating shock torques and providing excellent misalignment accommodation These couplings are used in PTO drives where torsion and cocking flexibility are required They can be mated with a variety of hub configurations special high torque designs are available as well as custom designs to meet special application requirements Dynaflex LCD Series Couplings LORD Dynaflex LCD Series Couplings are the ultimate coupling for reciprocating engine drives This coupling features a bonded elastomeric flexing element which is radially precompressed into a flanged outer housing This design produces a low torsional stiffness for maximum isolation of engine firing pulse induced torsional disturbances torque overload slip protection misalignment accommodation superior shock pulse attenuation and fatigue life and is adaptable to a variety of drive attachment designs Custom designs are available to fit nearly every SAE flywheel configuration available from most engine manufacturers Rev 1 10 08 Coupling Application Guide Best Application Area Outstanding Capabilities Versatility Factor Dynaflex Shea
27. nt the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DANA e ON LO 1n Onn m aO Page 103 of 124 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 Dynaflex LCR Series Couplings Rated 4 to 135 hp at 2000 rom LORD Dynaflex LCR Series Couplings are ring type couplings developed to overcome numerous torsional oroblems associated with vehicular and industrial drive line systems These easily installed couplings reduce noise transmission and increase bearing and driveline life through greater misalignment accommodation isolation of low frequency disturbances and isolation of torsional shock These highly flexible elastomeric couplings for acces sory drives are also designed to eliminate lubrication and maintenance Features and Benefits e Misalignment accommodation elastomeric flexibility allows for large angular misalignment For permissible misalignments including axial and radial Refer to Table 1 e Vibration isolation low torsional spring rate is achieved with the elastomeric ring type coupling using rubber in compression This allows for low system natural frequencies and isolation of first mode driveline disturbances in most driveline systems e Shock protection isolates torsional shock prevents backlash and protects system components in
28. o to www lordfulfillment com upload PC 7000 pdf DYNAFLEX BUSHING Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 90 of 124 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 AA a J i i i i 1 i 1 N e i E d i f r i J r i i lt A i y 4 s 2 i i Y r 4 i AY ALAR AAA LATA ARA 1441 i i VAY ANANI LA ANAN Dynaflex Shear Type Couplings Rated 1 50 to 1 hp at 1750 rom LORD Dynaflex Shear Type Couplings are compact one piece flexible couplings economically constructed to isolate low frequency vibration and accommodate multi directional misalignment These couplings reduce the adverse effects of transient shock torques torsional vibration noise and misalign ment associated with small equipment drivelines This results in longer service life smoother quieter operation less maintenance and lower cost for your end product Shear Type flexible couplings are useful in many small equipment driveline applications Multi directional misalignment capabilities make them ideally suited for fractional horsepower drivelines demanding noise reduc tion vibration isolation and maintenance free operation A part s listing in this catalog does not guaran
29. om upload PC 7000 pdf DANA e ON LO n Ona Gis eOOlOMMINIGtem Page 109 of 124 Features and Benefits e Protection from torsional shock loads e Design flexibility e Safe for occasional severe overloads e Vibration isolation extremely low torsional spring rate is achieved with the Dynaflex LCD Series Coupling using elastomer in shear This allows for low system natural frequencies and isolation of first mode driveline disturbances e Damping at resonance the elastomer used in Dynaflex LCD Series Couplings effectively reduces vibration at resonance e Shock protection torsional shock loads are attenu ated by large shear deflection of the elastomer In the case of severe overloads equipment damage is prevented by slippage between the elastomer and the outer housing e Misalignment accommodation elastomer flexibility allows for angular parallel and axial misalignment e Long service life Dynaflex LCD Series Couplings have proven themselves under demanding and rugged service conditions e Maintenance tfree elastomer flexibility accommo dates all motion without wear eliminates the need for lubrication e Noise reduction no metal to metal contact elas tomer attenuates structure borne noise and isolates vibration from components that would act as noise generators e Attachment fits many standard SAE flywheels e Design flexibility standard rubber molds are used to produce each different
30. oration Design Monograph 1107 Understanding Torsional Vibration Rev 1 10 08 DANA e ON LO n Onm m MAOTNA Page 121 of 124 Data Required for LORD Coupling Recommendation Toll Free Number in United States and Canada 1 877 ASK LORD 275 5673 All Information in This Box is Required Data Date LORD Recommended P N Company Name Field Engineer Address Discussed With Title General description of problem and equipment Q Retrofit Q New System APPLICATION Driving Unit Description Model No Manufacturer O 2 Stroke Cycle Q 4 Stroke Cycle Rotational Inertia and Torsional Spring Rate Data attach tabulated data Radial Support Needed U Yes O No Driven Unit Description Model No Manufacturer Rotational Inertia and Torsional Spring Rate Data attach tabulated data Parasitic Torque required lb ft SYSTEM DYNAMICS Mass elastic schematic of entire system please attach sketch Test data attach if available Speeds of Driving Unit Idle RPM Normal RPM Maximum RPM Time Idle Normal Maximum Speed Ratio Driving to Driven Unit to Torque Normal lb ft Maximum lb ft RPM Present Vibration Peak to Peak Response Maximum lb ft CPM Transient Shock Magnitude lb ft Duration milliseconds How Often times per hour Briefly describe any peculiarities or special circumstances of the dyanmic system Required data OVER A part s listing in this catalog does not guarantee i
31. ore Bore 2 688 68 28 2 80 2 80 101 60 63 50 oe 101 60 63 50 L 101 60 101 60 ee 101 60 101 60 152 40 101 60 2 15 69 85 152 40 101 60 69 85 It is advisable to refer to drawing of coupling before ordering since it is not practical to show all details in this catalog Definition of Part Numbering System Torsional Stiffness A Attachment Part Type hp Rating Variation me Variation LCD 0400 A A XX Torque Requirements Torque lb in 63025 x hp rom Rev 1 10 08 Table 4 Specifications and Dimensions Part Number Pre ae Danae Size Variation LCD 0075 ya a XXR A LCD 0075 XR C XXR C LCD 0075 X C LCD 0150 XR A XXR A LCD 0150 XR C XXR C LCD 0200 LCD 0200 LCD 0300 LCD 0300 LCD 0400 LCD 0400 LCD 0600 X A LCD 0800 X A LCD 1000 X A LCD 1500 X A LCD 2000 X A approval and availability Prolonged exposure to temperatures in the 0 F range and below produces a significantly reduced slip torque prior to driveline warm up This condition may result in the coupling s inability to transmit adequate drive torque for applications experiencing unusual cold temperature related parasitic loading Blind assembly style with a notched periphery provides trouble free sliding assembly on flywheel drive pins when bolted access is not possible Outer member is a composite material DANA e ONO n On m m Gi
32. r Type Low frequency vibration multidirectional misalignment Effectively accommodates combinations of misalignment high torsional resilience Widest application potential of all elastomeric couplings Dynaflex Spool Type Rated 50 to 1000 Low frequency vibra tion high power drive systems Versatility in design for exact application requirements stiffness and Capacity Capacity and resil lence can be varied by changing number and type of spool Dynaflex Bushing Type Rated 10 to 600 Multidirectional misalignment high capacity High torque capacity versus size Numerous combinations possible simply by changing flexing elements DAN AN aa ON LO n On Gis OOlOMMINIGtem Page 89 of 124 Rated 4 to 135 Large misalignment safetied drive requirements Angular misalignment capability Torsional spring rate varied by changing modulus or wall thickness Dynaflex Dynaflex LCR Series LCD Series Rated 75 to 2000 Diesel engines low frequency vibration multidirectional misalignment Fits many standard flywheels high torsional Large horsepower high horsepower capacity Fail Safe PER o l Characteristics Easily incorporated Easily incorporated Slip torque feature Dynaflex Elastomeric Flexible Couplings 2 DYNAFLEX LCD DYNAFLEX SHEAR A part s listing in this catalog does not guarantee its availability To download print the most current catalog g
33. ress psi d joint I M 0 D N No of Joints Socket Length 4 R Bolt Circle Radius ag ar WI Joint Minimum B C Dia D For Number of Joints I RMIN a 180 Number f win 2 3 a s e6ef7 e o fojn j Where r radius of rubber joint J 5915 58 12 000 3 54 5 00 6 52 8 08 9 68 11 25 12 81 14 40 15 98 17 59 19 15 O J 6250 2 4 8 12 16 20 24 28 32 36 40 44 48 52 56 J 5915 58 15 30 45 60 75 90 105 120 135 150 165 180 195 210 Bushing Part No Torque Ib in x 100 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 102 of 124 Figure 3 Joint Dimensions J 6250 2 Figure 4 Joint Dimensions J 5915 58 62 11 51 DRILL 1 06 26 9 Table 3 Typical Socket Dimensions Figure 5 Socket Dimensions LORD does not supply hubs Rubber elements only C RADIUS OR CHAMFER OA Installation Instructions Use P 80 lube or equivalent mixed to manufacturer s specifications Immerse rubber bushing in P 80 solution making sure entire bushing is wet Insert bushing into socket by pressing with adequate force to seat the bushing properly between the retaining lios Appearance of top and bottom should be uniform after assembly A part s listing in this catalog does not guarantee its availability To download pri
34. rranged in a single or double series configuration to 7 a 1000 match specific torsional stiffness and misalignment requirements 800 Static Load Deflection Characteristics of 600 LCR 300 600 046A Reference Curve S 400 Ring type couplings isolate torsional vibration and reduce the harmful effects of torsion shock Torsional 200 resilience is one important characteristic Figure 1 shows the torsional spring rate 0 0 01 02 03 04 05 06 A part s listing in this catalog does not guarantee its availability Typical Load Deflection in To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 Specifications Materials The elastomer used in Dynaflex LCR Series Couplings is high quality natural rubber which meets LORD specifications available upon request and exceeds SAE standards Natural rubber is used because of its excellent physical properties such as tensile strength tear and abrasion resistance fatigue resistance and low temperature characteristics Other elastomers are available to meet special applications needs The elastomer to metal bonds are even stronger than the elastomers Dynaflex LCR Series Couplings listed on the following pages have aluminum alloy inserts Many other insert configurations are possible to meet attachment requirements Environmental Ring type couplings will perform satis factorily when exposed to the normal fluid temperature and other environmental
35. rting transition torsional vibration isolation and misalignment accommodation Typical applications are small electric motor drives low torque mechanisms power take offs and auxiliary equipment drives Dynaflex Spool Type Couplings LORD Dynaflex Spool Type Couplings can be arranged in a variety of configurations to create a wide range of torque transmitting capability Elastomeric spool elements can be purchased in lot sizes for customer assembled coupling designs or LORD can provide a complete coupling assembly to meet specific application requirements Typical applications are large drives requiring high torque capacity and low torsional stiffness A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Page 88 of 124 Dynaflex Bushing Type Couplings LORD Dynaflex Bushing Type Couplings are bonded elastomeric elements designed for use in multiple element coupling configurations where high torque Capacity is required Bushings are available ina variety of stiffnesses They can be purchased in lots for customer assembled designs or LORD can provide complete coupling assemblies designed to meet your specific application requirements Applications requiring high torque high torsional stiffness but angular axial and parallel misalignment accommodation can be designed using these bushings in a variety of configuratio
36. ry Dynamometer Generator etc SS Cif Adapter Flange semm and Hub Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 120 of 124 Dynaflex LCD Series Couplings Torsional System Analysis Input Requirements Dynaflex couplings offer unique advantages with the soft torsional spring rate that isolates torsional vibration mitigates shock and reduces noise transmission In order to benefit from these advantages an analysis must be made of the application and a coupling selected which meets the specific requirements The following checklist sets forth the information required to initiate the analysis Application Data e What is the driving unit driven unit Include enough information to determine disturbing frequencies e g tyoe of engine number of cylinders number of cycles e What is the operating torque normal maximum e What is the operating speed range at normal torque and at maximum torque e What are the environmental conditions temperature oil type and amount of exposure corrosive factors other factors Coupling Requirements e What are the primary functions of the coupling torsional vibration isolation torsional shock mitigation noise attenuation shaft misalignment accommodation angular parallel axial e f known what torsional spring rate should the coupling have e f the required torsional spring rate is not Known what are the rotational moments on inertia of the dr
37. s are normally stocked Load Deflection Data Figures 1 through 3 illustrate the torque or load versus deflection characteristics for the A and C stiffnesses of the LCD 0400 size couplings The general characteristics of these curves are typical for all Dynaflex LCD Series Couplings Figure 1 shows the linearity of the coupling spring rate at and well above the rated capacity of 12 500 Ib in torque The curves also demonstrate the unique overload slio characteristic at about 60 000 Ib in torque It should be noted however that the overload protection results from slipping of the coupling This slipping generates heat and therefore continuous running at overload could be injurious to the coupling Figures 2 and 3 illustrate the flexibility of Dynaflex LCD series Couplings to accommodate axial and radial misalignment The A variation is made in a softer elas tomer to produce a lower torsional spring rate and there fore had the lower axial and radial spring rates All spring rates are ideally linear over the normal operating range of deflection A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Figure 1 Torsional Load Deflection Curves 100 Slip Torque LCD 0400 01 amp 04 C 12 500 Ibs in Torque Load Ib in x 000 80 100 120 Angular Deflection deg 0 2 40 60 Figure 2 Axial
38. size coupling shown in this catalog Often It is necessary to change metal components for custom applications This is common e Systems Engineering LORD has in house computer capabilities for multi mass torsional analysis to assist in proper coupling selection Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 110 of 124 Standardization of Proven Concept Using the experience gained in designing and producing special Dynaflex couplings LORD has developed a new standard product line of heavy duty Dynaflex couplings These couplings have a specially designed elastomeric element bonded to a metal inner member which is then preloaded and friction fit into an outer member This unique concept provides low torsional spring rates which effectively isolate critical vibratory disturbances in driveline and accessory systems thus prolonging equip ment life Misalignment and torsional shock loads are absorbed by shear deflection in the elastomeric element The ability of the coupling to slip at the outer member with short duration shock overloads protects the drive line and accessory components from premature failure The Dynaflex LCD Series Coupling has been particularly successful for diesel driven applications Dynaflex LCD Series Couplings are available in 75 to 2000 hp ratings at a nominal 2000 rom Each size is also available in two stiffness values These are referred to as the A and C stiffness values The C stiffness part
39. sted on the next page provides the necessary informa tion to select a coupling and design it into your system New equipment designs and retrofits involving recipro cating engine drives and unusual driveline arrangements should be analyzed to avoid potential vibration and misalignment problems Contact LORD Engineering for assistance Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Dynaflex LCR Series Couplings Table 1 Specifications and Dimensions Rated Performance Characteristics Static Torque Torsional Part Number Rating Per Axial Rate Radial KA Rate KR ra r a LCR 275 400 004A LCR 275 400 009A LCR 275 400 017A 2 6 290 33 0 46 0 34 550 62 0 87 0 65 13 0 Page 106 of 124 Permissible Misalignments Parallel Eee 1600 EEEE 1300 EEE LCR 300 600 046A ra efa e EE fd ed e a ee e LCR 400 800 060A 1900 108 5 2712 LCR 400 800 115A 3600 205 6 153 3 5197 4200 239 9 178 9 7118 3 01 2 24 39 3 45 0 100 0 114 2 6 66 4 97 116 6 87 0 133 3 99 4 LCR 400 800 135A O Torque ratings as listed are maximum steady torques per application requirements For general applications dynamic torques of 35 percent of the coupling rate torques can be applied to the listed torque ratings Shock torques e g start up torque etc of up to 200 percent rated torque are generally acceptable Table 2 Specifications and Dimensions 1450 3600 4200 3000 6400
40. t Figure 6 Double Coupling Arrangement en Single coupling arrangement consists of two shafts jointed by a single Double coupling series arrangement uses two couplings separated coupling for maximum economy by a floating shaft This provides same torque capacity as single hub arrangement with twice the permissible angular misalignment and half the torsional stiffness Superior to single coupling for control of torsional vibration A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 108 of 124 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 Dynaflex LCD Series Couplings Rated 75 to 2000 hp at 2000 rom LORD Dynaflex LCD Series Couplings have been developed to overcome numerous torsional problems associated with vehicular and industrial driveline systems These couplings increase equipment life by protecting against torsional vibration shock and misalignment Typical application attachments include e Flywheel to shaft e Flywheel to hub splined e Shaft to shaft e Floating shaft A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment c
41. tee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf DANA a ON AO n One Ma lt is OOO MMINIGtem Page 91 of 124 Typical applications include e Information Systems Motor drive printer rollers indexing devices linear actuator drives and card sorters e Hospital Bed Actuator drive e Dynamometer Driveline e Tachometer Driveline e Pumps Blowers Compressors Driveline Features and Benefits e High torsional deflection e Fasy installation e Versatile application potential fractional horsepower couplings are available in a range of sizes to permit matching a specific coupling to your application e One piece construction convenient for small equipment with fractional horsepower requirements Specified torque rating allows 15 angular deflection for excellent vibration isolation e Multi directional misalignment accommodation elas tomeric flexibility accommodates misalignments up to 1 32 inch parallel 2 angular e Vibration isolation low torsional stiffness is achieved with the shear type flexible coupling because the rubber is loaded in shear This allows for low system natural frequencies and excellent driveline disturbances e Shock protection torsional shock loads are attenu ated by torsional deflection of the elastomer Torsional flexibility smooths out rotational disturbances and protects system components from
42. ts availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 122 of 124 COUPLING REQUIREMENTS Primary Function Shaft Misalignment Specific Requirements Axial Inches Angular Degrees Parallel Inches Torsional Vibration Isolation Isolation RPM Torsional Shock Loads Maximum Amplitude Noise Attenuation Parameters System Operating Temperature Normal_ F Maximum _ F Minimum _ F Environment Oil Immersion Oil Splash Other Mil Spec Space Envelope Maximum Length Maximum Diameter Attachments Driving U Spline Q Flange Driven UW Spline Q Flange LU Keyways O Set Screws Q Keyways LI Set Screws Shaft Diameters Driving Driven Fail Safe Feature Required U Yes O No Maximum Allowable Weight Minimum Hours Life Required Please attach the following 1 A layout of the available space envelope and other pertinent drawings showing connecting driv eline components 2 Asystem mass elastic diagram including all rotational mass moments of inertia and torsional stiffnesses Remarks Required data Please return to LORD Corporation 2000 West Grandview Blvd P O Box 10038 Erie PA 16514 0038 Fax 814 866 1773 A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08
43. unction of many vari ables Among them are dynamic strain frequency elastomer type and stiffness temperature and torque loading Damping coefficients for this series have been determined and can be provided for torsional analysis work by contacting LORD Rev 1 10 08 Installation For engine applications the outer member is usually bolted directly to the flywheel for other applications to a Suitable adaptor The inner member normally attaches to the driven shaft The smaller LCD couplings generally have a tapered bore which accommodates a standard Split tapered bushing which grips the drive shaft Refer to Table 1 Split Tapered Bushings This configuration provides easy installation Figures 15 and 16 on the next page show typical installations involving universal joints Figure 8 This arrangement must not be used Suitable bearing supports are required to react cardan induced cocking loads Consult LORD Engineering for application review Figure 9 Flywheel Drawing for Tables 5 and 6 AX AS ED SS 6 WG A part s listing in this catalog does not guarantee its availability DAN AN e ONO n On Gi OOO mM MINIGtem Page 117 of 124 Table 5 Flywheels for Engine Mounted Torque Converters SAE J927 Nov 88 Converter Tapped Holes Flywheel 241 30 9 50 241 30 517 52 571 52 To To Table 6 Flywheels for Industrial Engines with Industrial Power Take Offs SAE J620 Oct 88
44. wnload print the most current catalog go to www lordfulfillment com upload PC 7000 pdf Rev 1 10 08 Dynaflex LCD Series Couplings Table 2 Rated Performance Characteristics Part Number LCD 0075 XR A XXR A XR C XXR C X C LCD 0075 LCD 0075 XR A XXR A XR C XXR C XR A XXR A XR C XXR C XR A XXR A XR C XXR C X A XX A X C LCD 0150 8 09 LCD 0150 8 09 6 04 LCD 0200 11 11 8 29 LCD 0200 11 11 8 29 LCD 0300 15 87 11 84 LCD 0300 15 87 11 84 LCD 0400 19 83 14 79 LCD 0400 19 83 14 79 LCD 0600 31 75 23 69 LCD 0800 39 67 29 58 X A X C X A LCD 1000 52 91 39 47 LCD 1500 79 37 59 21 LCD 2000 103 15 77 22 Please consult LORD engineering for application review approval and availability Prolonged exposure to temperatures in the 0 F range and below produces a significantly reduced slip torque prior to driveline warm up This condition may result in the coupling s inability to transmit adequate drive torque for applications experiencing unusual cold temperature related parasitic loading Blind assembly style with a notched periphery provides trouble free sliding assembly on flywheel drive pins when bolted access is not possible Outer member is a composite material 11 000 282 900 21 000 282 21 000 5 000 565 20 000 900 22 000 2 260 5 000 565 20 000 2 260 40 000 35 000
45. y to transmit adequate drive torque for applications experiencing unusual cold temperature related parasitic loading Blind assembly style with a notched periphery provides trouble free sliding assembly on flywheel drive pins when bolted access is not possible Outer member is a composite material 2 83 Page 114 of 124 Physical Characteristics Nominal 12 375 314 33 11 625 295 28 0 29 i 12 375 314 33 11 625 295 28 0 69 13 875 352 42 13 125 333 38 0 69 i 13 875 352 42 13 125 333 38 0 92 i 13 875 352 42 13 125 333 38 0 92 13 875 352 42 13 125 333 38 2 83 13 875 352 42 13 125 333 38 13 875 352 42 13 125 333 38 Use Wood s Sure Grip Bushing type SK or equivalent See detail drawings by part number for tolerances Pilot diameter tolerances are 000 005 in for A Series diameters and 005 000 in for C Series diameters Tapered Refer to SAE J620c for flywheel numbers 6 1 2 10 11 1 2 16 to SAE J927a for numbers 60 80 100 120 160 See Tables 5 and 6 Unless otherwise noted Xx dim 0 030 in 0 762 mm Xxx dim 0 015 in 0 381 mm Sure Grip is a trademark of Altra Industrial Motion Inc A part s listing in this catalog does not guarantee its availability To download print the most current catalog go to www lordfulfillment com upload PC 7000 pdf 15 ah Counter Counter Bore Bore No No Counter Counter B
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