ABEC 7
INNER RING
Specifications for Metric and Inch Ball Bearings (all tolerances shown are in .0001 inch)
Bore Diameter d mm Over | Bore Diameter d mm Incl. | Bore Diameter d Inches Over | Bore Diameter d Inches Incl. | Bore Tolerance Limits dmin | Bore Tolerance Limits dmax | Raceway Radial Runout* | Width Variation | Face Runout w/Bore* | Raceway Axial Runout* |
---|---|---|---|---|---|---|---|---|---|
0 | 10 | 0 | 0.3937 | -1.5 | +0 | 1 | 1 | 1 | 1 |
10 | 18 | 0.3937 | 0.7087 | -1.5 | +0 | 1 | 1 | 1 | 1 |
18 | 30 | 0.7087 | 1.1811 | -2 | +0 | 1 | 1 | 1.5 | 1.5 |
30 | 50 | 1.1811 | 1.9685 | -2.5 | +0 | 1.5 | 1 | 1.5 | 1.5 |
50 | 80 | 1.9685 | 3.1496 | -3 | +0 | 1.5 | 1.5 | 2 | 2 |
80 | 120 | 3.1496 | 4.7244 | -3 | +0 | 2 | 1.5 | 2 | 2 |
120 | 150 | 4.7244 | 7.0866 | -4 | +0 | 2.5 | 2 | 2.5 | 3 |
150 | 180 | 4.7244 | 7.0866 | -4 | +0 | 2.5 | 2 | 2.5 | 3 |
180 | 250 | 7.0866 | 9.8425 | -4.5 | +0 | 3 | 2.5 | 3 | 3 |
OUTER RING
Specifications for Metric and Inch Ball Bearings (all tolerances shown are in .0001 inch)
Bore Diameter d mm Over | Bore Diameter d mm Incl. | Bore Diameter d Inches Over | Bore Diameter d Inches Incl. | Outside Diameter Tolerance Limits Open Bearings Dmax | Outside Diameter Tolerance Limits Open Bearings Dmin | Outside Diameter Tolerance Limits Shielded/Sealed Bearings Dm High | Outside Diameter Tolerance Limits Shielded/Sealed Bearings Dm Low | Outside Diameter Tolerance Limits Shielded/Sealed Bearings Dmax | Outside Diameter Tolerance Limits Shielded/Sealed Bearings Dmin | Raceway Radial Runout* | Width Variation | Face Runout w/OD* | Raceway Axial Runout* |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 18 | 0 | 0.7078 | +0 | -1.5 | +0 | -1.5 | +1 | -2.5 | 1 | 1 | 1.5 | 2 |
18 | 30 | 0.7078 | 1.1811 | +0 | -2 | +0 | -2 | +1 | -3 | 1.5 | 1 | 1.5 | 2 |
30 | 50 | 1.1811 | 1.9685 | +0 | -2.5 | +0 | -2.5 | +2 | -4.5 | 2 | 1 | 1.5 | 2 |
50 | 80 | 1.9685 | 3.1496 | +0 | -3 | +0 | -3 | +2 | -5 | 2 | 1 | 1.5 | 2 |
80 | 120 | 3.1496 | 4.7244 | +0 | -3 | +0 | -3 | +3 | -6 | 2.5 | 1.5 | 2 | 2.5 |
120 | 150 | 4.7244 | 5.9055 | +0 | -3.5 | +0 | -3.5 | +3 | -6.5 | 3 | 2 | 2 | 3 |
150 | 180 | 5.9055 | 7.0866 | +0 | -4 | +0 | -4 | +3 | -7 | 3 | 2 | 2 | 3 |
180 | 250 | 7.0866 | 9.8425 | +0 | -4.5 | +0 | -4.5 | +4 | -8.5 | 4 | 3 | 3 | 4 |
250 | 315 | 9.8425 | 12.4015 | +0 | -5 | — | — | — | — | 4.5 | 3 | 3 | 4 |
WIDTH TOLERANCES
Specifications for Metric and Inch Ball Bearings (all tolerances shown are in .0001 inch)
Bearings Other Than Duplex Width of Individual Inner or Outer Ring
Inner Ring Bore mm Over | Inner Ring Bore mm Incl. | Inner Ring Bore Inches Over | Inner Ring Bore Inches Incl. | Width Tolerance Limits | Width Tolerance Limits |
---|---|---|---|---|---|
0 | 10 | 0 | 0.3937 | +0 | -16 |
10 | 18 | 0.3937 | 0.7078 | +0 | -32 |
18 | 180 | 0.7078 | 7.0866 | +0 | -50 |
180 | 315 | 7.0866 | 12.4015 | +0 | -100 |
Duplex Bearings Total Width of Inner or Outer Ring*
Inner Ring Bore mm Over | Inner Ring Bore mm Incl. | Inner Ring Bore Inches Over | Inner Ring Bore Inches Incl. | Width Tolerance Limits | Width Tolerance Limits |
---|---|---|---|---|---|
0 | 80 | 0 | 3.1496 | +0 | -200 |
80 | 180 | 3.1496 | 7.0866 | +0 | -300 |
180 | 315 | 7.0866 | 12.4015 | +0 | -400 |
— | — | — | — | — | — |
* If other than a pair of bearings is involved, the tolerances are in proportion to the number of bearings.