SKF PTFE and POM composite bushing bearings tolerances

SKF metric PTFE composite bushings shaft and housing tolerances, operating clearance

Bushing dimensions Diameter limits1) Operating
Bore Outside Wall Shaft Housing bore Bore diameter of clearance
diameter diameter thickness (f7 for d ≤ 75 mm) (H7) mounted bushing  
    (h8 for d > 75 mm)    
d D max. min. max. min. max. min. max. min. min. max.
mm mm μm
3 4,5 0,750 0,730 3,000(h6) 2,994(h6) 4,508(H6) 4,500(H6) 3,048 3,000 0 54
4 5,5 0,750 0,730 4,000(h6) 3,992(h6) 5,508(H6) 5,500(H6) 4,048 4,000 0 56
5 7 1,005 0,980 4,990 4,978 7,015 7,000 5,055 4,990 0 77
6 8 1,005 0,980 5,990 5,978 8,015 8,000 6,055 5,990 0 77
7 9 1,005 0,980 6,987 6,972 9,015 9,000 7,055 6,990 3 83
8 10 1,005 0,980 7,987 7,972 10,015 10,000 8,055 7,990 3 83
10 12 1,005 0,980 9,987 9,972 12,018 12,000 10,058 9,990 3 86
12 14 1,005 0,980 11,984 11,966 14,018 14,000 12,058 11,990 6 92
13 15 1,005 0,980 12,984 12,966 15,018 15,000 13,058 12,990 6 92
14 16 1,005 0,980 13,984 13,966 16,018 16,000 14,058 13,990 6 92
15 17 1,005 0,980 14,984 14,966 17,018 17,000 15,058 14,990 6 92
16 18 1,005 0,980 15,984 15,966 18,018 18,000 16,058 15,990 6 92
17 19 1,005 0,980 16,984 16,966 19,021 19,000 17,061 16,990 6 95
18 20 1,005 0,980 17,984 17,966 20,021 20,000 18,061 17,990 6 95
20 23 1,505 1,475 19,980 19,959 23,021 23,000 20,071 19,990 10 112
22 25 1,505 1,475 21,980 21,959 25,021 25,000 22,071 21,990 10 112
24 27 1,505 1,475 23,980 23,959 27,021 27,000 24,071 23,990 10 112
25 28 1,505 1,475 24,980 24,959 28,021 28,000 25,071 24,990 10 112
28 32 2,005 1,970 27,980 27,959 32,025 32,000 28,085 27,990 10 126
30 34 2,005 1,970 29,980 29,959 34,025 34,000 30,085 29,990 10 126
32 36 2,005 1,970 31,975 31,950 36,025 36,000 32,085 31,990 15 135
35 39 2,005 1,970 34,975 34,950 39,025 39,000 35,085 34,990 15 135
37 40 1,505 1,475 36,975 36,950 40,025 40,000 37,075 36,990 15 125
40 44 2,005 1,970 39,975 39,950 44,025 44,000 40,085 39,990 15 135
45 50 2,505 2,460 44,975 44,950 50,025 50,000 45,105 44,990 15 155
50 55 2,505 2,460 49,975 49,950 55,030 55,000 50,110 49,990 15 160
55 60 2,505 2,460 54,970 54,940 60,030 60,000 55,110 54,990 20 170
60 65 2,505 2,460 59,970 59,940 65,030 65,000 60,110 59,990 20 170
65 70 2,505 2,460 64,970 64,940 70,030 70,000 65,110 64,990 20 170
70 75 2,505 2,460 69,970 69,940 75,030 75,000 70,110 69,990 20 170
75 80 2,505 2,460 74,970 74,940 80,030 80,000 75,110 74,990 20 170
80 85 2,490 2,440 80,000 79,954 85,035 85,000 80,155 80,020 20 201
85 90 2,490 2,440 85,000 84,946 90,035 90,000 85,155 85,020 20 209
90 95 2,490 2,440 90,000 89,946 95,035 95,000 90,155 90,020 20 209
95 100 2,490 2,440 95,000 94,946 100,035 100,000 95,155 95,020 20 209
100 105 2,490 2,440 100,000 99,946 105,035 105,000 100,155 100,020 20 209
105 110 2,490 2,440 105,000 104,946 110,035 110,000 105,155 105,020 20 209
110 115 2,490 2,440 110,000 109,946 115,035 115,000 110,155 110,020 20 209
115 120 2,490 2,440 115,000 114,946 120,035 120,000 115,155 115,020 20 209
120 125 2,465 2,415 120,000 119,946 125,040 125,000 120,210 120,070 70 264
125 130 2,465 2,415 125,000 124,937 130,040 130,000 125,210 125,070 70 273
130 135 2,465 2,415 130,000 129,937 135,040 135,000 130,210 130,070 70 273
135 140 2,465 2,415 135,000 134,937 140,040 140,000 135,210 135,070 70 273
140 145 2,465 2,415 140,000 139,937 145,040 145,000 140,210 140,070 70 273
150 155 2,465 2,415 150,000 149,937 155,040 155,000 150,210 150,070 70 273
160 165 2,465 2,415 160,000 159,937 165,040 165,000 160,210 160,070 70 273
180 185 2,465 2,415 180,000 179,937 185,046 185,000 180,216 180,070 70 279
200 205 2,465 2,415 200,000 199,928 205,046 205,000 200,216 200,070 70 288
210 215 2,465 2,415 210,000 209,928 215,046 215,000 210,216 210,070 70 288
220 225 2,465 2,415 220,000 219,928 225,046 225,000 220,216 220,070 70 288
240 245 2,465 2,415 240,000 239,928 245,046 245,000 240,216 240,070 70 288
250 255 2,465 2,415 250,000 249,928 255,052 255,000 250,222 250,070 70 294
280 285 2,465 2,415 280,000 279,928 285,052 285,000 280,222 280,070 70 303
300 305 2,465 2,415 300,000 299,919 305,052 305,000 300,222 300,070 70 303

1) All ISO tolerance classes are valid with the envelope requirement (such as H7) in accordance with ISO 14405-1:2010.

SKF metric POM composite bushings – shaft and housing tolerances, operating clearance

Bushing dimensions Diameter limits1) Operating
Bore Outside Wall Shaft Housing bore Bore diameter of clearance
diameter diameter thickness   mounted bushing
    (h8) (H7)  
d D max. min. max. min. max. min. max. min. min. max.
mm mm μm
8 10 0,980 0,955 8,000 7,978 10,015 10,000 8,105 8,040 40 127
10 12 0,980 0,955 10,000 9,978 12,018 12,000 10,108 10,040 40 130
12 14 0,980 0,955 12,000 11,973 14,018 14,000 12,108 12,040 40 135
13 15 0,980 0,955 13,000 12,973 15,018 15,000 13,108 13,040 40 135
14 16 0,980 0,955 14,000 13,973 16,018 16,000 14,108 14,040 40 135
15 17 0,980 0,955 15,000 14,973 17,018 17,000 15,108 15,040 40 135
16 18 0,980 0,955 16,000 15,973 18,018 18,000 16,108 16,040 40 135
18 20 0,980 0,955 18,000 17,973 20,021 20,000 18,111 18,040 40 138
20 23 1,475 1,445 20,000 19,967 23,021 23,000 20,131 20,050 50 164
22 25 1,475 1,445 22,000 21,967 25,021 25,000 22,131 22,050 50 164
24 27 1,475 1,445 24,000 23,967 27,021 27,000 24,131 24,050 50 164
25 28 1,475 1,445 25,000 24,967 28,021 28,000 25,131 25,050 50 164
28 32 1,970 1,935 28,000 27,967 32,025 32,000 28,155 28,060 60 188
30 34 1,970 1,935 30,000 29,967 34,025 34,000 30,155 30,060 60 188
32 36 1,970 1,935 32,000 31,961 36,025 36,000 32,155 32,060 60 194
35 39 1,970 1,935 35,000 34,961 39,025 39,000 35,155 35,060 60 194
37 40 1,475 1,445 37,000 36,961 40,025 40,000 37,135 37,050 50 174
40 44 1,970 1,935 40,000 39,961 44,025 44,000 40,155 40,060 60 194
45 50 2,460 2,415 45,000 44,961 50,025 50,000 45,195 45,080 80 234
50 55 2,460 2,415 50,000 49,961 55,030 55,000 50,200 50,080 80 239
55 60 2,460 2,415 55,000 54,954 60,030 60,000 55,200 55,080 80 246
60 65 2,460 2,415 60,000 59,954 65,030 65,000 60,200 60,080 80 246
65 70 2,450 2,385 65,000 64,954 70,030 70,000 65,260 65,100 100 306
70 75 2,450 2,385 70,000 69,954 75,030 75,000 70,260 70,100 100 306
75 80 2,450 2,385 75,000 74,954 80,030 80,000 75,260 75,100 100 306
80 85 2,450 2,385 80,000 79,954 85,035 85,000 80,265 80,100 100 311
85 90 2,450 2,385 85,000 84,946 90,035 90,000 85,265 85,100 100 319
90 95 2,450 2,385 90,000 89,946 95,035 95,000 90,265 90,100 100 319
95 100 2,450 2,385 95,000 94,946 100,035 100,000 95,265 95,100 100 319
100 105 2,450 2,385 100,000 99,946 105,035 105,000 100,265 100,100 100 319
105 110 2,450 2,385 105,000 104,946 110,035 110,000 105,265 105,100 100 319
110 115 2,450 2,385 110,000 109,946 115,035 115,000 110,265 110,100 100 319
115 120 2,450 2,385 115,000 114,946 120,035 120,000 115,265 115,100 100 319
120 125 2,450 2,385 120,000 119,946 125,040 125,000 120,270 120,100 100 324
125 130 2,450 2,385 125,000 124,937 130,040 130,000 125,270 125,100 100 333
130 135 2,450 2,385 130,000 129,937 135,040 135,000 130,270 130,100 100 333
135 140 2,450 2,385 135,000 134,937 140,040 140,000 135,270 135,100 100 333
140 145 2,450 2,385 140,000 130,937 145,040 145,000 140,270 140,100 100 333
150 155 2,450 2,385 150,000 149,937 155,040 155,000 150,270 150,100 100 333
160 165 2,450 2,385 160,000 159,937 165,040 165,000 160,270 160,100 100 333
180 185 2,450 2,385 180,000 179,937 185,046 185,000 180,276 180,100 100 339
190 195 2,450 2,385 190,000 189,928 195,046 195,000 190,276 190,100 100 348
210 215 2,450 2,385 210,000 209,928 215,046 215,000 210,276 210,100 100 348
280 285 2,450 2,385 280,000 279,919 285,052 285,000 280,282 280,100 100 363

SKF inch PTFE composite bushings – shaft and housing tolerances, operating clearance

Bushing dimensions Diameter limits Operating
Bore Outside Wall Shaft Housing bore Bore diameter of clearance
diameter diameter thickness   mounted bushing  
d D max. min. max. min. max. min. max. min. min. max.
in / mm in / mm in / μm
1/8 3/16 0,0315 0,0305 0,1242 0,1236 0,1878 0,1873 0,1268 0,1243 0,0001 0,0032
3,175 4,763 0,800 0,775 3,155 3,139 4,769 4,757 3,219 3,157 2 80
3/16 1/4 0,0315 0,0305 0,1867 0,1858 0,2503 0,2497 0,1893 0,1867 0 0,0035
4,763 6,350 0,800 0,775 4,743 4,719 6,358 6,343 4,792 4,743 0 89
1/4 5/16 0,0315 0,0305 0,2490 0,2482 0,3128 0,3122 0,2518 0,2493 0,0003 0,0036
6,35 7,938 0,800 0,775 6,325 6,304 7,946 7,931 6,396 6,331 6 92
5/16 3/8 0,0315 0,0305 0,3115 0,3113 0,3753 0,3747 0,3143 0,3117 0,0002 0,0030
7,938 9,525 0,800 0,775 7,913 7,907 9,533 9,518 7,983 7,918 5 76
3/8 15/32 0,0471 0,0461 0,3740 0,3738 0,4691 0,4684 0,3769 0,3742 0,0002 0,0031
9,525 11,906 1,196 1,171 9,500 9,496 11,916 11,898 9,574 9,506 6 78
7/16 17/32 0,0471 0,0461 0,4363 0,4358 0,5317 0,5309 0,4394 0,4368 0,0005 0,0036
11,113 13,494 1,196 1,171 11,081 11,070 13,504 13,486 11,162 11,094 13 92
1/2 19/32 0,0471 0,0461 0,4987 0,4983 0,5941 0,5934 0,5019 0,4992 0,0005 0,0036
12,7 15,081 1,196 1,171 12,668 12,657 15,091 15,073 12,749 12,681 13 92
9/16 21/32 0,0471 0,0461 0,5613 0,5608 0,6566 0,6559 0,5644 0,5618 0,0005 0,0036
14,288 16,669 1,196 1,171 14,256 14,245 16,679 16,661 14,337 14,269 13 92
5/8 23/32 0,0471 0,0461 0,6237 0,6233 0,7192 0,7184 0,6270 0,6242 0,0005 0,0037
15,875 18,256 1,196 1,171 15,843 15,832 18,268 18,247 15,926 15,855 12 94
11/16 25/32 0,0471 0,0461 0,6863 0,6858 0,7817 0,7809 0,6895 0,6867 0,0005 0,0036
17,463 19,844 1,196 1,171 17,431 17,420 19,856 19,833 17,514 17,441 10 94
3/4 7/8 0,0627 0,0615 0,7484 0,7479 0,8755 0,8747 0,7525 0,7493 0,0009 0,0046
19,05 22,225 1,592 1,562 19,010 18,997 22,237 22,216 19,113 19,032 22 116
7/8 1 0,0627 0,0615 0,8734 0,8729 1,0005 0,9997 0,8775 0,8743 0,0009 0,0046
22,225 25,4 1,592 1,562 22,185 22,172 25,412 25,391 22,288 22,207 22 116
1 11/8 0,0627 0,0615 0,9984 0,9979 1,1255 1,1246 1,0025 0,9993 0,0009 0,0046
25,4 28,575 1,592 1,562 25,360 25,347 28,587 28,566 25,463 25,382 22 116
11/8 19/32 0,0782 0,0770 1,1234 1,1229 1,2817 1,2813 1,1278 1,1245 0,0011 0,0049
28,575 32,544 1,991 1,955 28,535 28,522 32,555 32,544 28,645 28,562 27 123
11/4 113/32 0,0782 0,0770 1,2480 1,2474 1,4067 1,4063 1,2528 1,2495 0,0015 0,0054
31,75 35,719 1,991 1,955 31,700 31,684 35,730 35,719 31,820 31,737 37 136
13/8 117/32 0,0782 0,0770 1,3730 1,3724 1,5317 1,5313 1,3778 1,3745 0,0015 0,0054
34,925 38,894 1,991 1,955 34,875 34,859 38,905 38,894 34,995 34,912 37 136
11/2 121/32 0,0782 0,0770 1,4980 1,4974 1,6567 1,6563 1,5028 1,4995 0,0015 0,0054
38,1 42,069 1,991 1,955 38,050 38,034 42,080 42,069 38,170 38,087 37 136
15/8 125/32 0,0782 0,0770 1,6230 1,6224 1,7817 1,7813 1,6278 1,6245 0,0015 0,0054
41,275 45,244 1,991 1,955 41,225 41,209 45,255 45,244 41,345 41,262 37 136
13/4 115/16 0,0941 0,0923 1,7480 1,7472 1,9381 1,9375 1,7535 1,7493 0,0013 0,0063
44,45 49,213 2,390 2,344 44,400 44,379 49,224 49,213 44,536 44,433 33 157
17/8 21/16 0,0941 0,0923 1,8730 1,8724 2,0630 2,0625 1,8784 1,8743 0,0013 0,0060
47,625 52,388 2,390 2,344 47,575 47,559 52,401 52,388 47,713 47,608 33 154
2 23/16 0,0941 0,0923 1,9976 1,9969 2,1880 2,1875 2,0034 1,9991 0,0015 0,0065
50,8 55,563 2,390 2,344 50,739 50,721 55,575 55,557 50,887 50,777 38 166
21/4 27/16 0,0928 0,0902 2,25 2,2493 2,4380 2,4375 2,2576 2,2519 0,0019 0,0083
57,15 61,913 2,357 2,291 57,15 57,131 61,926 61,913 57,344 57,199 49 213
21/2 211/16 0,0928 0,0902 2,5 2,4993 2,6880 2,6875 2,5076 2,5019 0,0019 0,0083
63,5 68,263 2,357 2,291 63,5 63,481 68,276 68,263 63,694 63,549 49 213
23/4 215/16 0,0928 0,0902 2,75 2,7493 2,9381 2,9375 2,7577 2,7519 0,0019 0,0084
69,85 74,613 2,357 2,291 69,85 69,832 74,628 74,613 70,046 69,899 49 214
3 33/16 0,0928 0,0902 3 2,9993 3,1881 3,1875 3,0077 3,0019 0,0019 0,0084
76,2 80,963 2,357 2,291 76,2 76,182 80,978 80,963 76,396 76,249 49 214
31/2 311/16 0,0928 0,0902 3,5 3,4991 3,6881 3,6875 3,5077 3,5019 0,0019 0,0086
88,9 93,663 2,357 2,291 88,9 88,878 93,678 93,663 89,096 88,949 49 218
4 43/16 0,0928 0,0902 4 3,9991 4,1881 4,1875 4,0077 4,0019 0,0019 0,0086
101,6 106,363 2,357 2,291 101,6 101,578 106,378 106,363 101,796 101,649 49 218
5 53/16 0,0928 0,0902 5 4,9990 5,1882 5,1875 5,0078 5,0019 0,0019 0,0088
127 131,763 2,357 2,291 127 126,975 131,781 131,763 127,199 127,049 49 224
6 63/16 0,0928 0,0902 6 5,9990 6,1882 6,1876 6,0078 6,0019 0,0019 0,0088
152,4 157,163 2,357 2,291 152,4 152,375 157,181 157,163 152,599 152,449 49 224
7 73/16 0,0928 0,0902 7 6,9990 7,1883 7,1875 7,0079 7,0019 0,0019 0,0089
177,8 182,563 2,357 2,291 177,800 177,775 182,583 182,563 178,001 177,849 49 226

SKF inch POM composite bushings – shaft and housing tolerances, operating clearance

Bushing dimensions Diameter limits Operating
Bore Outside Wall Shaft Housing bore Bore diameter of clearance
diameter diameter thickness   mounted bushing
d D max. min. max. min. max. min. max. min. min. max.
in / mm in / mm in / μm
3/8 15/32 0,051 0,050 0,3648 0,3639 0,4694 0,4687 0,3694 0,3667 0,0019 0,0055
9,525 11,906 1,295 1,270 9,266 9,243 11,922 11,904 9,382 9,314 48 139
7/16 17/32 0,051 0,050 0,4273 0,4263 0,5320 0,5313 0,4320 0,4293 0,0020 0,0057
11,113 13,494 1,295 1,270 10,853 10,828 13,512 13,494 10,974 10,904 50 142
1/2 19/32 0,051 0,050 0,4897 0,4887 0,5944 0,5937 0,4944 0,4917 0,0020 0,0057
12,7 15,081 1,295 1,270 12,438 12,413 15,098 15,080 12,558 12,490 52 145
9/16 21/32 0,051 0,050 0,5522 0,5512 0,6569 0,6562 0,5569 0,5543 0,0021 0,0057
14,288 16,669 1,295 1,270 14,026 14,001 16,685 16,667 14,145 14,078 52 144
5/8 23/32 0,051 0,050 0,6146 0,6136 0,7195 0,7187 0,6195 0,6167 0,0021 0,0059
15,875 18,256 1,295 1,270 15,611 15,585 18,275 18,255 15,735 15,665 54 150
11/16 25/32 0,051 0,050 0,6770 0,6760 0,7821 0,7812 0,6821 0,6793 0,0023 0,0061
17,463 19,844 1,295 1,270 17,196 17,170 19,865 19,842 17,325 17,254 58 155
3/4 7/8 0,0669 0,0657 0,7390 0,7378 0,8758 0,8750 0,7444 0,7412 0,0022 0,0066
19,05 22,225 1,699 1,669 18,771 18,740 22,245 22,225 18,907 18,827 56 167
7/8 1 0,0669 0,0657 0,8639 0,8627 1,0008 1,0000 0,8694 0,8662 0,0023 0,0067
22,225 25,4 1,699 1,669 21,943 21,913 25,421 25,400 22,083 22,002 59 170
1 11/8 0,0669 0,0657 0,9888 0,9876 1,1258 1,1250 0,9944 0,9912 0,0024 0,0068
25,4 28,575 1,699 1,669 25,116 25,085 28,595 28,575 25,258 25,177 61 173
11/8 19/32 0,0824 0,0810 1,1138 1,1126 1,2822 1,2813 1,1203 1,1165 0,0027 0,0077
28,575 32,544 2,093 2,057 28,291 28,260 32,569 32,544 28,455 28,358 67 195
11/4 113/32 0,0824 0,0810 1,2387 1,2371 1,4072 1,4063 1,2453 1,2415 0,0028 0,0082
31,75 35,719 2,093 2,057 31,463 31,422 35,743 35,719 31,639 31,533 70 208
13/8 117/32 0,0824 0,0810 1,3635 1,3619 1,5322 1,5313 1,3703 1,3664 0,0029 0,0084
34,925 38,894 2,093 2,057 34,633 34,592 38,919 38,894 34,805 34,708 75 213
11/2 121/32 0,0824 0,0810 1,4884 1,4868 1,6572 1,6562 1,4953 1,4915 0,0031 0,0085
38,1 42,069 2,093 2,057 37,805 37,765 42,097 42,069 37,980 37,883 78 215
15/8 125/32 0,0824 0,0810 1,6133 1,6117 1,7822 1,7813 1,6203 1,6165 0,0032 0,0086
41,275 45,244 2,093 2,057 40,978 40,937 45,269 45,244 41,155 41,058 80 218
13/4 115/16 0,098 0,0962 1,7383 1,7367 1,9385 1,9375 1,7461 1,7415 0,0032 0,0086
44,45 49,213 2,489 2,443 44,153 44,112 49,238 49,213 44,352 44,235 82 240
17/8 21/16 0,098 0,0962 1,8632 1,8616 2,0637 2,0625 1,8713 1,8665 0,0033 0,0086
47,625 52,388 2,489 2,443 47,325 47,285 52,418 52,388 47,532 47,410 85 247
2 23/16 0,098 0,0962 1,9881 1,9863 2,1887 2,1875 1,9963 1,9915 0,0034 0,0100
50,8 55,563 2,489 2,443 50,498 50,452 55,593 55,563 50,707 50,585 87 255
21/4 27/16 0,098 0,0962 2,2378 2,2360 2,4387 2,4375 2,2463 2,2415 0,0037 0,0103
57,15 61,913 2,489 2,443 56,840 56,794 61,943 61,913 57,057 56,935 95 263
21/2 211/16 0,098 0,0962 2,4875 2,4857 2,6887 2,6875 2,4963 2,4915 0,0040 0,0106
63,5 68,263 2,489 2,443 63,183 63,137 68,293 68,263 63,407 63,285 102 270
23/4 215/16 0,0991 0,0965 2,7351 2,7333 2,9387 2,9375 2,7457 2,7393 0,0042 0,0124
69,85 74,613 2,517 2,451 69,472 69,426 74,643 74,613 69,741 69,579 107 315
3 33/16 0,0991 0,0965 2,9849 2,9831 3,1889 3,1875 2,9959 2,9893 0,0044 0,0128
76,2 80,963 2,517 2,451 75,817 75,771 80,998 80,963 76,096 75,929 112 325
31/2 311/16 0,0991 0,0965 3,4844 3,4822 3,6889 3,6875 3,4959 3,4893 0,0049 0,0137
88,9 93,663 2,517 2,451 88,504 88,448 93,698 93,663 88,796 88,629 125 348
4 43/16 0,0991 0,0965 3,9839 3,9817 4,1889 4,1875 3,9959 3,9893 0,0054 0,0142
101,6 106,363 2,517 2,451 101,191 101,135 106,398 106,363 101,496 101,329 138 361

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