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

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