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ENGINEERING<br />
METRIC SYSTEM BEARINGS (TXR PREFIX PARTS)<br />
A<br />
Bearing<br />
types<br />
TXR<br />
Metric bearing tolerances<br />
Outer race<br />
<strong>Precision</strong> bearing class<br />
O.D.<br />
S<br />
P<br />
Over Incl.<br />
Max. Min. Max. Min.<br />
mm mm mm mm mm mm<br />
in.<br />
in.<br />
in.<br />
in.<br />
in.<br />
in.<br />
18.000 30.000 0.000 -0.010 0.000 -0.008<br />
0.7087 1.1811 0.0000 -0.0004 0.0000 -0.0003<br />
30.000 50.000 0.000 -0.013 0.000 -0.010<br />
1.1811 1.9685 0.0000 -0.0005 0.0000 -0.0004<br />
50.000 80.000 0.000 -0.015 0.000 -0.010<br />
1.9685 3.1496 0.0000 -0.0006 0.0000 -0.0004<br />
80.000 120.000 0.000 -0.020 0.000 -0.013<br />
3.1496 4.7244 0.0000 -0.0008 0.0000 -0.0005<br />
120.000 180.000 0.000 -0.025 0.000 -0.013<br />
4.7244 7.0866 0.0000 -0.0010 0.0000 -0.0005<br />
180.000 250.000 0.000 -0.030 0.000 -0.015<br />
7.0866 9.8425 0.0000 -0.0012 0.0000 -0.0006<br />
250.000 400.000 0.000 -0.040 0.000 -0.020<br />
9.8425 15.7480 0.0000 -0.0016 0.0000 -0.0008<br />
400.000 630.000 0.000 -0.050 0.000 -0.025<br />
15.7480 24.8031 0.0000 -0.0020 0.0000 -0.0010<br />
630.000 800.000 0.000 -0.060 – –<br />
24.8031 31.4961 0.0000 -0.0024 – –<br />
800.000 1000.000 0.000 -0.080 – –<br />
31.4961 39.3701 0.0000 -0.0031 – –<br />
1000.000 1200.000 0.000 -0.100 – –<br />
39.3701 47.2441 0.0000 -0.0039 – –<br />
1200.000 1600.000 0.000 -0.120 – –<br />
47.2441 62.9921 0.0000 -0.0047 – –<br />
1600.000 2000.000 0.000 -0.140 – –<br />
62.9921 78.7402 0.0000 -0.0055 – –<br />
2000.000 – 0.000 -0.140 – –<br />
78.7402 – 0.0000 -0.0055 – –<br />
Bearing<br />
types<br />
TXR<br />
Metric bearing tolerances<br />
Inner race<br />
<strong>Precision</strong> bearing class<br />
Bore<br />
S<br />
P<br />
Over Incl.<br />
Max. Min. Max. Min.<br />
mm mm mm mm mm mm<br />
in.<br />
in.<br />
in.<br />
in.<br />
in.<br />
in.<br />
10.000 50.000 0.000 -0.013 0.000 -0.010<br />
0.3937 1.9685 0.0000 -0.0005 0.0000 -0.0004<br />
50.000 80.000 0.000 -0.015 0.000 -0.013<br />
1.9685 3.1496 0.0000 -0.0006 0.0000 -0.0005<br />
80.000 120.000 0.000 -0.020 0.000 -0.013<br />
3.1496 4.7244 0.0000 -0.0008 0.0000 -0.0005<br />
120.000 180.000 0.000 -0.025 0.000 -0.013<br />
4.7244 7.0866 0.0000 -0.0010 0.0000 -0.0005<br />
180.000 250.000 0.000 -0.030 0.000 -0.015<br />
7.0866 9.8425 0.0000 -0.0012 0.0000 -0.0006<br />
250.000 315.000 0.000 -0.035 0.000 -0.018<br />
9.8425 12.4016 0.0000 -0.0014 0.0000 -0.0007<br />
315.000 400.000 0.000 -0.040 0.000 -0.020<br />
12.4016 15.7480 0.0000 -0.0016 0.0000 -0.0008<br />
400.000 500.000 0.000 -0.045 0.000 -0.025<br />
15.7480 19.6850 0.0000 -0.0018 0.0000 -0.0010<br />
500.000 630.000 0.000 -0.050 0.000 -0.030<br />
19.6850 24.8031 0.0000 -0.0020 0.0000 -0.0012<br />
630.000 800.000 0.000 -0.060 – –<br />
24.8031 31.4961 0.0000 -0.0024 – –<br />
800.000 1000.000 0.000 -0.080 – –<br />
31.4961 39.3701 0.0000 -0.0031 – –<br />
1000.000 1200.000 0.000 -0.100 – –<br />
39.3701 47.2441 0.0000 -0.0039 – –<br />
1200.000 1600.000 0.000 -0.120 – –<br />
47.2441 62.9921 0.0000 -0.0047 – –<br />
1600.000 2000.000 0.000 -0.140 – –<br />
62.9921 78.7402 0.0000 -0.0055 – –<br />
2000.000 – 0.000 -0.140 – –<br />
78.7402 – 0.0000 -0.0055 – –<br />
TIMKEN MACHINE TOOL CATALOG 71
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