ball and roller bearings - NTN Bearing Corporation of
ball and roller bearings - NTN Bearing Corporation of
ball and roller bearings - NTN Bearing Corporation of
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TOLERANCE<br />
TABLES<br />
262<br />
Tolerance limits for:<br />
Tapered <strong>roller</strong> <strong>bearings</strong> with “J” prefixed part numbers.<br />
Table 8<br />
CONE BORE TOLERANCES<br />
Cone Bore Class K Class N Class C Class B<br />
.0001 .001 .0001 .001 .0001 .001 .0001 .001<br />
inch mm inch mm inch mm inch mm inch mm<br />
Over Incl. Over Incl. High Low High Low High Low High Low High Low High Low High Low High Low<br />
.3937 .7087 10 18 +0 - 5 +0 -13 +0 - 5 +0 -13 +0 - 4 +0 -10 +0 - 3 +0 - 8<br />
.7087 1.1811 18 30 +0 - 5 +0 -13 +0 - 5 +0 -13 +0 - 4 +0 -10 +0 - 3 +0 - 8<br />
1.1811 1.9685 30 50 +0 - 5 +0 -13 +0 - 5 +0 -13 +0 - 4 +0 -10 +0 - 4 +0 -10<br />
1.9685 3.1496 50 80 +0 - 6 +0 -15 +0 - 6 +0 -15 +0 - 5 +0 -13 +0 - 4 +0 -10<br />
3.1496 4.7244 80 120 +0 - 8 +0 -20 +0 - 8 +0 -20 +0 - 5 +0 -13 +0 - 4 +0 -10<br />
4.7244 7.0866 120 180 +0 -10 +0 -25 +0 -10 +0 -25 +0 - 5 +0 -13 +0 - 4 +0 -10<br />
7.0866 9.8425 180 250 +0 -12 +0 -30 +0 -12 +0 -30 +0 - 6 +0 -15 +0 - 5 +0 -13<br />
9.8425 12.4016 250 315 +0 -14 +0 -35 +0 -14 +0 -35 +0 - 7 +0 -18 +0 - 5 +0 -13<br />
Table 9<br />
CUP O.D. TOLERANCES<br />
Cup O.D. Class K Class N Class C Class B<br />
.0001 .001 .0001 .001 .0001 .001 .0001 .001<br />
inch mm inch mm inch mm inch mm inch mm<br />
Over Incl. Over Incl. High Low High Low High Low High Low High Low High Low High Low High Low<br />
.7087 1.1811 18 30 +0 -8 +0 -20 +0 -8 +0 -20 +0 -3 +0 -8 +0 -3 +0 -8<br />
1.1811 1.9685 30 50 +0 -8 +0 -20 +0 -8 +0 -20 +0 -4 +0 -10 +0 -2 +0 -8<br />
1.9685 3.1496 50 80 +0 -8 +0 -20 +0 -8 +0 -20 +0 -4 +0 -10 +0 -3.5 +0 -9<br />
3.1496 4.7244 80 120 +0 -8 +0 -20 +0 -8 +0 -20 +0 -5 +0 -13 +0 -4 +0 -10<br />
4.7244 5.9055 120 150 +0 -10 +0 -25 +0 -10 +0 -25 +0 -5 +0 -13 +0 -4 +0 -10<br />
5.9055 7.0866 150 180 +0 -10 +0 -25 +0 -10 +0 -25 +0 -5 +0 -13 +0 -4 +0 -10<br />
7.0866 9.8425 180 250 +0 -12 +0 -30 +0 -12 +0 -30 +0 -6 +0 -15 +0 -5 +0 -13<br />
9.8425 12.4016 250 315 +0 -16 +0 -40 +0 -16 +0 -40 +0 -8 +0 -20 +0 -6 +0 -15<br />
12.4016 15.7480 315 400 +0 -16 +0 -40 +0 -16 +0 -40 +0 -8 +0 -20 – – – –<br />
15.7480 19.6850 400 500 +0 -20 +0 -50 +0 -20 +0 -50 +0 -10 +0 -25 – – – –<br />
Table 10<br />
OVERALL BEARING WIDTH TOLERANCES<br />
Cone Bore Class K Class N Class C Class B<br />
.0001 .001 .0001 .001 .0001 .001 .0001 .001<br />
inch mm inch mm inch mm inch mm inch mm<br />
Over Incl. Over Incl. High Low High Low High Low High Low High Low High Low High Low High Low<br />
.3937 .7087 10 18 +79 -0 +200 -0 +39 -0 +100 -0 +79 -79 +200 -200 +79 -79 +200 -200<br />
.7087 1.1811 18 30 +79 -0 +200 -0 +39 -0 +100 -0 +79 -79 +200 -200 +79 -79 +200 -200<br />
1.1811 1.9685 30 50 +79 -0 +200 -0 +39 -0 +100 -0 +79 -79 +200 -200 +79 -79 +200 -200<br />
1.9685 3.1496 50 80 +79 -0 +200 -0 +39 -0 +100 -0 +79 -79 +200 -200 +79 -79 +200 -200<br />
3.1496 4.7244 80 120 +79 -79 +200 -200 +39 -0 +100 -0 +79 -79 +200 -200 +79 -79 +200 -200<br />
4.7244 7.0866 120 180 +79 -79 +200 -200 +59 -0 +150 -0 +79 -98 +200 -250 +79 -98 +200 -250<br />
7.0866 9.8425 180 250 +79 -79 +200 -200 +59 -0 +150 -0 +79 -118 +200 -300 +79 -118 +200 -300<br />
9.8425 12.4016 250 315 +79 -79 +200 -200 +79 -0 +200 -0 +79 -118 +200 -300 +79 -118 +200 -300
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