Composite dry sliding bearings â maintenance-free and space-saving

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Application of bearingsPTFE composite bushings (metric sizes)Shaft and housing tolerances, bearing clearanceContinuation of Table1Bushing dimensions Diameter limits OperatingBore Outside Wall Shaft Housing Bore diameter of clearancediameter diameter thickness (h8) bore mounted bushing or preload (–)(H7)d D max min max min max min max min min maxmm mm µm160 165 2,465 2,415 160,000 159,937 165,040 165,000 160,210 160,070 70 273180 185 2,465 2,415 180,000 179,937 185,046 185,000 180,216 180,070 70 279200 205 2,465 2,415 200,000 199,928 205,046 205,000 200,216 200,070 70 288210 215 2,465 2,415 210,000 209,928 215,046 215,000 210,216 210,070 70 288220 225 2,465 2,415 220,000 219,928 225,046 225,000 220,216 220,070 70 288250 255 2,465 2,415 250,000 249,928 255,052 255,000 250,222 250,070 70 294300 305 2,465 2,415 300,000 299,919 305,052 305,000 300,222 300,070 70 30316
PTFE composite bushings (inch sizes)Shaft and housing tolerances, bearing clearanceTable2Bushing dimensions Diameter limits OperatingBore Outside Wall Shaft Housing Bore diameter of clearancediameter diameter thickness bore mounted bushing or preload (–)d D max min max min max min max min min maxinch/mm inch/mm µinch/µm0,125 0,1875 0,0316 0,0308 0,1243 0,1236 0,1878 0,1873 0,1261 0,1241 –0,24 2,563,175 4,763 0,803 0,783 3,157 3,139 4,770 4,757 3,204 3,151 –6 650,1562 0,2188 0,0316 0,0308 0,1554 0,1547 0,2191 0,2186 0,157 0,1554 –0,04 2,763,969 5,556 0,803 0,783 3,947 3,929 5,565 5,552 3,999 3,946 –1 700,1875 0,25 0,0316 0,0308 0,1865 0,1858 0,2503 0,2497 0,1887 0,1865 –0,04 2,874,763 6,35 0,803 0,783 4,737 4,719 6,358 6,342 4,792 4,736 –1 730,25 0,3125 0,0316 0,0308 0,2490 0,2481 0,3128 0,3122 0,251 0,2490 –0,04 3,036,35 7,938 0,803 0,783 6,325 6,302 7,945 7,930 6,379 6,324 –1 770,3125 0,375 0,0316 0,0308 0,3115 0,3106 0,3753 0,3747 0,3137 0,3115 –0,04 3,077,938 9,525 0,803 0,783 7,912 7,889 9,533 9,517 7,967 7,911 –1 780,375 0,4687 0,0472 0,0461 0,3740 0,3731 0,4691 0,4684 0,3768 0,3741 0,04 3,709,525 11,906 1,198 1,172 9,500 9,477 11,915 11,897 9,571 9,501 1 940,4375 0,5312 0,0472 0,0461 0,4365 0,4355 0,5316 0,5309 0,4393 0,4366 0,08 3,8211,113 13,494 1,198 1,172 11,087 11,062 13,503 13,485 11,159 11,089 2 970,5 0,5937 0,0472 0,0461 0,4990 0,4980 0,5941 0,5934 0,5018 0,4991 0,04 3,8212,7 15,081 1,198 1,172 12,675 12,649 15,090 15,072 12,746 12,676 1 970,5625 0,6562 0,0472 0,0461 0,5615 0,5605 0,6566 0,6559 0,5643 0,5616 0,08 3,8214,288 16,669 1,198 1,172 14,262 14,237 16,678 16,660 14,334 14,264 2 970,625 0,7187 0,0472 0,0461 0,6240 0,6230 0,7192 0,7184 0,6269 0,6241 0,04 3,9415,875 18,256 1,198 1,172 15,850 15,824 18,268 18,247 15,924 15,851 1 1000,6875 0,7812 0,0472 0,0461 0,6865 0,6865 0,7817 0,7809 0,6894 0,6866 0,08 3,9017,463 19,844 1,198 1,172 17,437 17,412 19,855 19,835 17,511 17,439 2 990,75 0,875 0,0627 0,0614 0,7491 0,7479 0,8755 0,8747 0,7527 0,7493 0,24 4,7619,05 22,225 1,592 1,560 19,027 18,997 22,238 22,217 19,118 19,033 6 1210,875 1 0,0627 0,0614 0,8741 0,8729 1,0005 0,9997 0,8777 0,8743 0,24 4,7622,225 25,4 1,592 1,560 22,202 22,172 25,413 25,392 22,293 22,208 6 1211 1,125 0,0627 0,0614 0,9991 0,9979 1,1256 1,1246 1,0028 0,9993 0,16 4,8425,4 28,575 1,592 1,560 25,377 25,347 28,590 28,565 25,470 25,381 4 1231,125 1,2812 0,0784 0,077 1,1238 1,1226 1,2818 1,2808 1,1279 1,1240 0,20 5,2828,575 32,544 1,991 1,955 28,545 28,514 32,558 32,532 28,648 28,550 5 1341,25 1,4062 0,0784 0,077 1,2488 1,2472 1,4068 1,4058 1,2529 1,2490 0,20 5,5731,75 35,719 1,991 1,955 31,720 31,679 35,733 35,707 31,823 31,725 5 1441,375 1,5312 0,0784 0,077 1,3738 1,3722 1,5318 1,5308 1,3779 1,3740 0,20 5,5734,925 38,894 1,991 1,955 34,895 34,854 38,908 38,882 34,998 34,900 5 1441,5 1,6562 0,0784 0,077 1,4988 1,4972 1,6568 1,6558 1,5029 1,4990 0,20 5,5738,1 42,069 1,991 1,955 38,070 38,029 42,083 42,057 38,173 38,075 5 1441,625 1,7812 0,784 0,077 1,6238 1,6222 1,7818 1,7808 1,6279 1,6240 0,20 5,5741,275 45,244 1,991 1,955 41,245 41,204 45,258 45,232 41,348 41,250 5 1441,75 1,9375 0,0939 0,0921 1,7487 1,7471 1,9381 1,9371 1,7539 1,7492 0,51 6,7744,45 49,213 2,386 2,340 44,417 44,376 49,228 49,202 44,548 44,430 13 17217
Page 1 and 2: Composite dry sliding bearings- mai
Page 3 and 4: Maintenance-free andspace-savingDry
Page 5 and 6: Table1Series Characteristics PagePC
Page 7 and 8: Summary of characteristics of SKFPT
Page 9 and 10: Chemical propertiesThe chemical res
Page 11 and 12: Service lifeThe service life of a d
Page 13 and 14: Calculation of servicelifeMany fact
Page 15: PTFE composite bushings (metric siz
Page 19 and 20: POM composite bushings (metric size
Page 21 and 22: POM composite bushings (inch sizes)
Page 23 and 24: Fig4Fig5Fig6The mating surface shou
Page 25 and 26: MountingSkill and care in mounting
Page 27 and 28: Composite bushings with metric dime
Page 29 and 30: Dimensions Basic load ratings Mass
Page 39 and 40: Composite thrust washersd 12 - 52 m
Page 41 and 42: Other related productsMaintenance-f
Page 43 and 44: SKF rod endsRod ends have been desi
Page 45 and 46: Linear guide for a car suspension s
Page 47 and 48: Bearing arrangementfor a heavyloade
Page 49 and 50: Coupling rod bearing arrangements f
Page 51 and 52: Bearing arrangement for the platfor
Page 54 and 55: The SKF group- a worldwide corporat
Page 56: © Copyright SKF 1999The contents o

Composite dry sliding bearings â maintenance-free and space-saving

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Composite dry sliding bearings â maintenance-free and space-saving