Timken Seal Specificseal Specification Guideation Guide-Books Pdf

TIMKEN SEAL SPECIFICSEAL SPECIFICATION GUIDEATION GUIDE
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SEAL SPECIFICATION GUIDE,INTRODUCTION GENERAL GUIDELINES. The Timken Company known for its top quality line of bear. The data provided here is a guideline for the, ings has extended its product line to include seals Timken. selection of a seal for a general or specific, with 77 seal patents already had the product knowledge for. application The user needs to be aware that, seal design In fact it was only natural for Timken to extend. many seal design configurations exist to, this experience into a complete line of seals for the automo.
meet specific requirements Therefore first, tive aftermarket Each and every seal sold by Timken is man. look up the correct seal in the Bearing and, ufactured with the same quality that goes into every Timken. Seal Application Catalog for Automotive and, bearing To help our customers in seal selection we have. Light Truck published by The Timken, developed this Seal Specification Guide If you have com. Corporation If you do not find the information, ments or suggestions on the Seal Specification Guide.
regarding the seal required, please complete the postage paid card found in the back of. this publication or send an e mail to auto am timken com 1 Determine the general category the. seal application falls within,2 Determine if operating conditions. exceed the design limits,HOW TO USE THIS CATALOG a Shaft Speed. b Pressure, The seals listed in this catalog are arranged by shaft size c Eccentricity. and part number Determine the method you will use for your. search then turn to the corresponding section found in the 3 Select appropriate lip case and material. table of contents Each seal will have the dimensions along Selection is based on temperature of. with the seal type and material If a specific seal is not found application fluid and environment to be. contact your Timken sales representative to check sealed or excluded. the availability of that particular seal 4 Review bore and shaft configurations. to ensure compatibility with seal, The data presented here is to provide a guideline or refer.
ence for general information only it is not intended to be 5 If any questions or concerns remain. used for engineering purposes Therefore when installing contact your Timken sales representative. any parts referenced in this catalog always follow the original for more information or assistance. equipment manufacturer s instruction manual specifications. and guidelines The information referenced is deemed reliable. but not guaranteed The Timken Corporation reserves the. right to make changes to and amendments of any informa WARNING. tion displayed The Timken Corporation also reserves the. right to make any functional substitutions in type style or Proper maintenance and handling prac. design where deemed appropriate tices are critical Follow the equipment. manufacturer s installation instructions,Failure to follow installation instructions. and to maintain proper lubrication can,result in equipment failure and could lead. to a risk of serious bodily harm,2001 The Timken Corporation. Portions of this book are,2000 Freudenberg NOK,and reprinted with permission. TABLE OF CONTENTS,SECTION PAGE,Introduction Inside Front Cover.
How to Use This Catalog Inside Front Cover,General Guidelines Inside Front Cover. Warning Inside Front Cover,Seal Nomenclature 2,Seal Design Types 3 4 Inside Back Cover. Shaft Recommendations 5,Housing Recommendations 6,Bore Recommendations 7. Operating Conditions 8 9,Seal Tolerances 10,Material Selection 11. Seal Installation 12 13,V Seals 14,KWIK Sleeve Component 15.
Conversion Chart 16,Size Section Seals Inch Metric 17 76. Size Section V Seals 77 84,Size Section Oil Bath Seals 85 87. Size Section KWIK Sleeves 88 93,Size Section Seal Kits 94 97. Numeric Section Seals Inch 98 144,Numeric Section Seals Metric 145 150. Numeric Section V Seals 151 158,Numeric Section Oil Bath Seals 159 161.
Numeric Section KWIK Sleeves 162 167,Numeric Section Seal Kits 168 171. Metric Size 172 183,Metric Part 184 195,O Rings 196 198. SEAL NOMENCLATURE,1 Seal Width 19 Inside Lip Angle. 2 Metal Case Outer 20 Toe Face,3 Housing 21 Inside Case Inner Diameter. 4 Inner Case 22 Outer Case Inner Diameter,5 Outside Face 23 Auxiliary Dust Lip.
6 Lip Length 24 Outside Lip Surface,7 Inside Face 25 Outside Lip Angle. 8 Radial Wall Dimension 26 Rib Helix,9 Seal Outer Diameter 27 Contact Point. 10 Housing Bore Diameter 28 Static Lip,11 Spring Position R Value 29 Inside Lip Surface. 12 Spring Groove 30 Molded Toe Angle,13 Garter Spring 31 Spring Set Lip Diameter. 14 Axial Clearance 32 Free Lip Unsprung Diameter,15 Heel Section 33 Contact Line Height.
16 Flex Section 34 Lip Height,17 Spring Retainer Lip 35 Lip Angle. 18 Head Section,SEAL DESIGN TYPES,10S 20S 50S 40S 70S 80S 90S. 210 240 250 260 290 300 310,320 330 340 350 360 400 410. 430 440 450 460 470 480 490,510 520 540 560 570 590 610. 620 640 650 660 680 690 700,METAL RUBBER FELT,TEFLON LEATHER.
710 720 740 750 760 780,SEAL SPECIFICATION GUIDE,SEAL DESIGN TYPES continued. 790 830 860 870 880 890,900 910 920 930 940 960 970. 980 1000 2000 2000E 2010 2030 2040,2050 2300 2710 2720 2730 2740 2760. 2770 2780 2790 2800 2810 2820 2830,2840 2850 2860 2870 2900 TPDW. METAL RUBBER FELT,TEFLON LEATHER,TW2 TW TW H TFF TFW H.
SHAFT RECOMMENDATIONS,Shafts Recommended Shaft Chamfer. Seal and shaft compatibility is dependent on four conditions. shaft tolerance lead in chamfer finish and hardness Proper. consideration of these conditions will assist in providing Typically. optimal seal performance 15 25,SHAFT HARDNESS is an important factor to prevent. excessive wear deformation scratches or nicks and to Rounded Burr Free. allow for easy machining for proper roughness Under Edge. normal conditions the seal contact area of the shaft S D D1. should be Rockwell C45 minimum,SHAFT SURFACE ROUGHNESS is very important as this. greatly influences the amount of lip wear The recommend. ed roughness is as follows,Rotating 10 to 20 inch Ra 25 M to 50 M Ra. RMAX 31 126 inch 0 8 3 2 M INCHES, Reciprocating 5 to 10 inch Ra 13 M to 25 M S D D1 S D D1.
Ra The method of achieving this finish should not be Up to 1 000 S D 094 4 001 to 5 000 S D 220. overlooked 1 001 to 2 000 S D 140 5 001 to 5 000 S D 260. PLUNGE GRINDING is recommended for rotating shaft 2 001 to 3 000 S D 166 6 001 to 5 000 S D 276. applications For reciprocating applications centerless 3 001 to 4 000 S D 196. grinding is acceptable Rotating shaft applications require a. surface with no machine lead as machine lead may actu MILLIMETERS. ally pump fluid from under the seal lip Also hard chrome S D D1 S D D1. plating is suggested for any cast iron or stainless steel. Up to 25 00 S D 2 4 100 01 to 125 00 S D 5 6, shafts for rotating applications and for steel shafts with. reciprocating applications 25 01 to 50 00 S D 3 6 125 01 to 150 00 S D 6 6. 50 01 to 75 00 S D 4 2 150 01 to 250 00 S D 7 0, A SHAFT CHAMFER is suggested to assist in the installa. tion process Without a proper chamfer the seal lip may be 75 01 to 100 00 S D 5 0. damaged or distorted resulting in a dislodged garter. SHAFT TOLERANCE recommendations for general, applications are listed below The tolerance range should. be decreased for high speed or pressure applications. Recommended Shaft Tolerance, SHAFT DIAMETER INCH TOLERANCE SHAFT DIAMETER DIN METRIC TOLERANCE. Up to 4 000 003 Up to 100 mm 0 08,4 001 to 6 000 004 100 10 to 150 00 0 10.
6 001 to 10 000 005 150 10 to 250 00 0 13,SEAL SPECIFICATION GUIDE. HOUSING RECOMMENDATIONS,Housing Recommended Bore Chamfer. Steel and cast iron provide good surfaces for both rubber. covered and metal O D seals For soft alloy aluminum. bores rubber covered O D seals provide better sealing 0 005 Max R. capability In aluminum or other soft alloy bores metal O D 15 30 Deg. seals occasionally back out of the bore due to thermal expan. sion of the soft alloy Rubber having a higher coefficient of. thermal expansion than carbon steel will tighten in the bores 0 06 0 09. as temperature rises,This corner must, Plastic or nylon are not recommended because they typically be burr free. expand at a high rate causing a major problem for metal O D. seals If plastic is to be used rubber O D seals are recom. Bore Chamfer, A bore chamfer is necessary to assist in installation of the. seal To the right is the recommended configuration for the. Surface Roughness, Proper chamfer angle and depth minimizes cocking or lack Excessively rough bore finishes may allow paths for fluid.
of squareness of the seal to the shaft distortion of the seal to leak between seal O D and bore Below shows the. cases and reduces assembly force recommended maximum roughness. METAL O D RUBBER O D,100 inch Ra 150 inch Ra,MAXIMUM 2 50 M Ra 3 75 M Ra. ROUGHNESS 492 inch RMAX,12 5 M RMAX, The rubber O D seal is capable of functioning with a rougher. METAL O D RUBBER O D,MINIMUM None 60 inch Ra,ROUGHNESS None 1 5 M Ra. A minimum bore roughness is recommended for rubber O D. seals This improves retention,BORE RECOMMENDATIONS. Bore Diameter Tolerance,The recommended housing bore diameter bore.
tolerance and nominal pressfit,INCH SIZES,NORMAL PRESS FIT O D TOLERANCE 1 OUT OF ROUND 2. BORE BORE SEALS WITH SEALS WITH SEALS WITH SEALS WITH SEALS WITH SEALS WITH. DIAMETER TOLERANCE METAL O D RUBBER O D METAL O D RUBBER O D METAL O D RUBBER O D. Up to 1 000 001 004 006 002 003 005 010,1 001 2 000 001 004 006 002 003 006 012. 2 001 3 000 001 004 006 002 003 006 014,3 001 4 000 0015 005 008 002 004 007 018. 4 001 6 000 0015 005 010 003 004 009 023,6 001 8 000 002 006 003 012. 8 001 9 000 002 007 004 015,9 001 10 000 002 008 004 015.
EQUIVALENT METRIC SIZES,NORMAL PRESS FIT O D TOLERANCE 1 OUT OF ROUND 2. BORE BORE SEALS WITH SEALS WITH SEALS WITH SEALS WITH SEALS WITH SEALS WITH. DIAMETER TOLERANCE METAL O D RUBBER O D METAL O D RUBBER O D METAL O D RUBBER O D. Up to 25 00 0 025 0 10 0 15 0 05 0 08 0 13 0 25,25 01 50 00 0 025 0 10 0 15 0 05 0 08 0 15 0 30. 50 01 75 00 0 025 0 10 0 15 0 05 0 08 0 15 0 36,75 01 100 00 0 038 0 13 0 20 0 05 0 10 0 18 0 46. 100 01 150 00 0 038 0 13 0 25 0 08 0 10 0 23 0 58,150 01 200 00 0 051 0 15 0 08 0 30. 200 01 225 00 0 051 0 18 0 10 0 38,225 01 250 00 0 051 0 20 0 10 0 38.
1 Seal O D The average of a minimum three measurements to be. taken at equally spaced positions, 2 Out of Round OOR The maximum variance between any of the. readings used in determining seal O D,SEAL SPECIFICATION GUIDE. OPERATING CONDITIONS,Seal with Spring,DESIGN LIMITATIONS. SHAFT NITRILE LIP MAXIMUM MAXIMUM CONTINUOUS MAXIMUM TOTAL. DIAMETER CONTINUOUS SHAFT SPEED PRESSURE ECCENTRICITY. General 3 500 rpm 5 psi 020,500 7 000 rpm 5 psi 004. 1 500 6 000 rpm 5 psi 006,2 500 4 000 rpm 5 psi 010.
3 500 3 500 rpm 5 psi 013,4 500 2 600 rpm 5 psi 017. NOTE Higher shaft speed is possible using higher temperature materials such as polyacrylate fluoroelastomer. or silicone Slightly higher continuous pressure is possible for shaft speeds below 200 fpm Higher eccentricity. is allowable if shaft speed is reduced,Seal without Spring. DESIGN LIMITATIONS,SHAFT MAXIMUM MAXIMUM CONTINUOUS MAXIMUM TOTAL. DIAMETER SHAFT SPEED PRESSURE ECCENTRICITY,General 2 000 rpm 4 psi 005. 500 3 500 rpm 4 psi 003,1 500 2 500 rpm 4 psi 005,2 500 2 100 rpm 4 psi 006.
3 500 1 500 rpm 4 psi 008,4 500 1 200 rpm 4 psi 010. NOTE Higher eccentricity is allowable if maximum shaft speed is reduced. A nonsprung seal design offers a cost effective way to seal. high viscosity grease applications Because the design does. not benefit from the constant load of a garter spring the. allowable eccentricity is decreased and the fluids to be. sealed are limited,OPERATING CONDITIONS,Eccentricity. de Center of Bore,Shaft Rotation Centerline,Centerline. Rotation Shaft,Shaft Housing,2de T I R Bore,RUNOUT Center of. T I R Rotation,SHAFT TO BORE,de Dynamic Eccentricity MISALIGNMENT.
Eccentricity is determined by measuring the shaft runout TIR. and the shaft to bore misalignment Combine the two results. for the total eccentricity the seal lip must follow to function. effectively As eccentricity increases and or shaft speed. increases it becomes more difficult for the lip to follow the. SEAL SPECIFICATION GUIDE,SEAL TOLERANCES, To provide an interface between the seal outside surface and. the housing bore surface the recommended tolerances for the. outside diameter of the seal are indicated below,Seal width tolerance Values in millimeters. SEAL WIDTH TOLERANCE,SEAL OUTSIDE DIAMETER TOLERANCES. VALUES IN MILLIMETERS,NOMINAL DIAMETRAL TOLERANCE ROUNDNESS TOLERANCE. OUTSIDE DIAMETER METAL RUBBER METAL RUBBER,D CASED COVERED2 3 CASED COVERED.
D 50 0 20 0 30 0 18 0 25,50 D1 80 0 23 0 35 0 25 0 35. 80 D1 120 0 25 0 35 0 30 0 50,120 D1 180 0 28 0 45 0 40 0 65. 180 D1 300 0 35 0 45 0 25 of 0 80,0 15 0 25 outside diameter. 300 D1 400 0 45 0 55 0 25 of 1 00,0 20 0 30 outside diameter. 1 The roundness tolerance is equal to the difference between the. SEAL SPECIFICSEAL SPECIFICATION GUIDEATION GUIDE HOW TO USE THIS CATALOG The seals listed in this catalog are arranged by shaft size and part number Determine the method you will use for your search then turn to the corresponding section found in the table of contents Each seal will have the dimensions along with the seal type and material If a specific seal is not found contact your

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