ball and roller bearings - NTN Bearing Corporation of

Standard tolerance values for radial internal clearance of cylindrical
roller bearings with cylindrical bore and non-interchangeable component*.
*(NA suffix designates non-interchangeable component)
Table 21 (Clearance Limits in 0.001 mm)
CLEARANCE
TABLES
CYLINDRICAL ROLLER BEARINGS (cylindrical bore; non-interchangeable component)
Nominal Bore C1 NA C2 NA NA C3 NA C4 NA C5 NA
d Less than Less than Normal Greater than Greater than Greater than
mm C2 Clearance Normal Clearance Clearance Normal Clearance C3 Clearance C4 Clearance
Over Incl. Low High Low High Low High Low High Low High Low High
18 24 5 10 10 20 20 30 35 45 45 55 65 75
24 30 5 10 10 25 25 35 40 50 50 60 70 80
30 40 5 12 12 25 25 40 45 55 55 70 80 95
40 50 5 15 15 30 30 45 50 65 65 80 95 110
50 65 5 15 15 35 35 50 55 75 75 90 110 130
65 80 10 20 20 40 40 60 70 90 90 110 130 150
80 100 10 25 25 45 45 70 80 105 105 125 155 180
100 120 10 25 25 50 50 80 95 120 120 145 180 205
120 140 15 30 30 60 60 90 105 135 135 160 200 230
140 160 15 35 35 65 65 100 115 150 150 180 225 260
160 180 15 35 35 75 75 110 125 165 165 200 250 285
180 200 20 40 40 80 80 120 140 180 180 220 275 315
200 225 20 45 45 90 90 135 155 200 200 240 305 350
225 250 25 50 50 100 100 150 170 215 215 265 330 380
250 280 25 55 55 110 110 165 185 240 240 295 370 420
280 315 30 60 60 120 120 180 205 265 265 325 410 470
315 355 30 65 65 135 135 200 225 295 295 360 455 520
355 400 35 75 75 150 150 225 255 330 330 405 510 585
400 450 45 85 85 170 170 255 285 370 370 455 565 650
450 500 50 95 95 190 190 285 315 410 410 505 625 720
Table 21-A (Clearance Limits in 0.0001 inch)
CYLINDRICAL ROLLER BEARINGS (cylindrical bore; non-interchangeable component)
Nominal Bore C1 NA C2 NA NA C3 NA C4 NA C5 NA
d Less than Less than Normal Greater than Greater than Greater than
inch C2 Clearance Normal Clearance Clearance Normal Clearance C3 Clearance C4 Clearance
Over Incl. Low High Low High Low High Low High Low High Low High
.7087 .9449 2.0 3.9 3.9 7.9 7.9 11.8 13.6 17.7 17.7 21.7 25.6 29.5
.9449 1.1811 2.0 3.9 3.9 9.8 9.8 13.8 15.7 19.7 19.7 23.6 27.6 31.5
1.1811 1.5748 2.0 4.7 4.7 9.8 9.8 15.7 17.7 21.7 21.7 27.6 31.5 37.4
1.5748 1.9685 2.0 5.9 5.9 11.8 11.8 17.7 19.7 25.6 25.6 31.5 37.4 43.3
1.9685 2.5591 2.0 5.9 5.9 13.8 13.8 19.7 21.7 29.5 29.5 35.4 43.3 51.2
2.5591 3.1496 3.9 7.9 7.9 15.7 15.7 23.6 27.6 35.4 35.4 43.3 51.2 59.1
3.1496 3.9370 3.9 9.8 9.8 17.7 17.7 27.6 31.5 41.3 41.3 49.2 61.0 70.9
3.9370 4.7244 3.9 9.8 9.8 19.7 19.7 31.5 37.4 47.2 47.2 57.1 70.9 80.7
4.7244 5.5118 5.9 11.8 11.8 23.6 23.6 35.4 41.3 53.1 53.1 63.0 78.7 90.6
5.5118 6.2992 5.9 13.8 13.8 25.6 25.6 39.4 45.3 59.1 59.1 70.9 88.6 102.4
6.2992 7.0866 5.9 13.8 13.8 29.5 29.5 43.3 49.2 65.0 65.0 78.7 98.4 112.2
7.0866 7.8740 7.9 15.7 15.7 31.5 31.5 47.2 55.1 70.9 70.9 86.6 108.3 124.0
7.8740 8.8583 7.9 17.7 17.7 35.4 35.4 53.1 61.0 78.7 78.7 94.5 120.1 137.8
8.8583 9.8425 9.8 19.7 19.7 39.4 39.4 59.1 66.9 84.6 84.6 104.3 129.9 149.6
9.8425 11.0236 9.8 21.7 21.7 43.3 43.3 65.0 72.8 94.5 94.5 116.1 145.7 165.4
11.0236 12.4016 11.8 23.6 23.6 47.2 47.2 70.9 80.7 104.3 104.3 128.0 161.4 185.0
12.4016 13.9764 11.8 25.6 25.6 53.1 53.1 78.7 88.6 116.1 116.1 141.7 179.1 204.7
13.9764 15.7480 13.8 29.5 29.5 59.1 59.1 88.6 100.4 129.9 129.9 159.4 200.8 230.3
15.7480 17.7165 17.7 33.5 33.5 66.9 66.9 100.4 112.2 145.7 145.7 179.1 222.4 255.9
17.7165 19.6850 19.7 37.4 37.4 74.8 74.8 112.2 124.0 161.4 161.4 198.8 246.1 283.5
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