ball and roller bearings - NTN Bearing Corporation of

Standard tolerance values for radial internal clearance of
spherical roller bearings with tapered bore.
Table 23 (Clearance Limits in 0.001 mm)
SPHERICAL ROLLER BEARINGS (TAPERED BORE)
Nominal Bore C2 –– C3 C4
d Less than Greater than Greater than
mm Normal Clearance Normal Clearance Normal Clearance C3 Clearance
Over Incl. Low High Low High Low High Low High
30 40 25 35 35 50 50 65 65 85
40 50 30 45 45 60 60 80 80 100
50 65 40 55 55 75 75 95 95 120
65 80 50 70 70 95 95 120 120 150
80 100 55 80 80 110 110 140 140 180
100 120 65 100 100 135 135 170 170 220
120 140 80 120 120 160 160 200 200 260
140 160 90 130 130 180 180 230 230 300
160 180 100 140 140 200 200 260 260 340
180 200 110 160 160 220 220 290 290 370
200 225 120 180 180 250 250 320 320 410
225 250 140 200 200 270 270 350 350 450
250 280 150 220 220 300 300 390 390 490
260 315 170 240 240 330 330 430 430 540
315 355 190 270 270 360 360 470 470 590
355 400 210 300 300 400 400 520 520 650
400 450 230 330 330 440 440 570 570 720
450 500 260 370 370 490 490 630 630 790
500 560 290 410 410 540 540 680 680 870
560 630 320 460 460 600 600 760 760 980
630 710 350 510 510 670 670 850 850 1090
710 800 390 570 560 750 750 960 960 1220
800 900 440 640 640 840 840 1070 1070 1370
900 1000 490 710 710 930 930 1190 1190 1520
Table 23-A (Clearance Limits in 0.0001 inch)
SPHERICAL ROLLER BEARINGS (TAPERED BORE)
CLEARANCE
TABLES
Nominal Bore C2 –– C3 C4
d Less than Greater than Greater than
inch Normal Clearance Normal Clearance Normal Clearance C3 Clearance
Over Incl. Low High Low High Low High Low High
1.1811 1.5748 9.8 13.8 13.8 19.7 19.7 25.6 25.6 33.5
1.5748 1.9685 11.8 17.7 17.7 23.6 23.6 31.5 31.5 39.4
1.9685 2.5591 15.7 21.7 21.7 29.5 29.5 37.4 37.4 47.2
2.5591 3.1496 19.7 27.6 27.6 37.4 37.4 47.2 47.2 59.1
3.1496 3.9370 21.7 31.5 31.5 43.3 43.3 55.1 55.1 70.9
3.9370 4.7244 25.6 39.4 39.4 53.1 53.1 66.9 66.9 86.6
4.7244 5.5118 31.5 47.2 47.2 63.0 63.0 78.7 78.7 102.4
5.5118 6.2992 35.4 51.2 51.2 70.9 70.9 90.6 90.6 118.1
6.2992 7.0866 39.4 55.1 55.1 78.7 78.7 102.4 102.4 133.9
7.0866 7.8740 43.3 63.0 63.0 86.6 86.6 114.2 114.2 145.7
7.8740 8.8583 47.2 70.9 70.9 98.4 98.4 126.0 126.0 161.4
8.8583 9.8425 55.1 78.7 78.7 106.3 106.3 137.8 137.8 177.2
9.8425 11.0236 59.1 86.6 86.6 118.1 118.1 153.5 153.5 192.9
11.0236 12.4016 66.9 94.5 94.5 129.9 129.9 169.3 169.3 212.6
12.4016 13.9764 74.8 106.3 106.3 141.7 141.7 185.0 185.0 232.3
13.9764 15.7480 82.7 118.1 118.1 157.5 157.5 204.7 204.7 255.9
15.7480 17.7165 90.6 129.9 129.9 173.2 173.2 224.4 224.4 283.5
17.7165 19.6850 102.4 145.7 145.7 192.9 192.9 248.0 248.0 311.0
19.6850 22.0472 114.2 161.4 161.4 212.6 212.6 267.7 267.7 342.5
22.0472 24.8031 126.0 181.1 181.1 236.2 236.2 299.2 299.2 385.8
24.8031 27.9528 137.8 200.8 200.8 263.8 263.8 334.6 334.6 429.1
27.9528 31.4961 153.5 224.4 224.4 295.3 295.3 378.0 378.0 480.3
31.4961 35.4331 173.2 252.0 252.0 330.7 330.7 421.3 421.3 539.4
35.4331 39.3701 192.9 279.5 279.5 366.1 366.1 468.5 468.5 598.4
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