Miniature & Instrument Bearings
Dimensional Control
| RING WIDTH * | ||||||
|---|---|---|---|---|---|---|
| Charisteristic | Configuration | ABEC 1 | ABEC 3P | ABEC 5P | ABEC 7P | ABEC 9P |
| Width | Single Bearing | +.000 | +.000 | +.000 | +.000 | +.000 |
| –.005 | –.005 | –.001 | –.001 | –.001 | ||
| Duplex Pair | – | – | +.000 | +.000 | +.000 | |
| – | – | –.015 | –.015 | –.015 | ||
*Measurement in inches unless otherwise indicated.
| OUTER RING * | |||||||
|---|---|---|---|---|---|---|---|
| Charisteristic | Configuration | Size Range | ABEC 1 | ABEC 3P | ABEC 5P | ABEC 7P | ABEC 9P |
| Mean OD Tolerance Limits |
All | 0 - 18mm | +.0000 | +.0000 | +.0000 | +.0000 | +.0000 |
| (0 - .7086) | –.0003 | –.0003 | –.0002 | –.0002 | –.0001 | ||
| All | over 18 - 30mm | +.0000 | +.0000 | +.0000 | +.0000 | +.0000 | |
| (.7086 - 1.1181) | –.0004 | –.0003 | –.0002 | –.0002 | –.00015 | ||
| Maximum OD Tolerance Limits |
Open | 0 - 18mm | +.0001 | +.0001 | +.0000 | +.0000 | +.0000 |
| (0- .7086) | –.0004 | –.0004 | –.0002 | –.0002 | –.0001 | ||
| over 18 - 30mm | +.0001 | +.0001 | +.0000 | +.0000 | +.0000 | ||
| (.7086 - 1.1181) | –.0005 | –.0004 | –.0002 | –.0002 | –.00015 | ||
| Shielded | 0 - 18mm | +.0002 | +.0002 | +.00004 | +.00004 | – | |
| (0- .7086) | –.0005 | –.0005 | –.00024 | –.00024 | – | ||
| over 18 - 30mm | +.0002 | +.0002 | +.00004 | +.00004 | – | ||
| (.7086 - 1.1181) | –.0006 | –.0005 | –.00024 | –.00024 | – | ||
| OD 2 pt. Out of Roundness |
Open | 0 - 18mm | – | – | .0001 | .0001 | .00005 |
| Open | over 18 - 30mm | – | – | .0001 | .0001 | .0008 | |
| Shielded | 0 - 30mm | – | – | .0002 | .0002 | – | |
| OD Taper | All | 0-18mm | – | – | .0001 | .0001 | .0005 |
| All | over 18 - 30mm | – | – | .0001 | .0001 | .00008 | |
| Shielded | 0 - 30mm | – | – | .0002 | .0002 | – | |
| Radial Runout | All | 0 - 18mm | .0006 | .0004 | .0002 | .00015 | .00005 |
| All | over 18 - 30mm | .0006 | .0004 | .0002 | .00015 | .0001 | |
| Width Variation | All | 0 - 30mm | – | – | .0002 | .0001 | .00005 |
| OD Runout with Face |
All | 0 - 30mm | – | – | .0003 | .00015 | .00005 |
| Race Runout with Face |
Plain | 0 - 18mm | – | – | .0003 | .0002 | .00005 |
| Plain | over 18 - 30mm | – | – | .0003 | .0002 | .0001 | |
| Flanged | 0 - 30mm | – | – | .0003 | .0003 | – | |
| Flange Width Tolerance Limits |
– | – | +.0000 | +.0000 | +.0000 | – | |
| – | – | –.0020 | –.0020 | –.0020 | – | ||
| Flange Diameter Tolerance Limits |
– | – | +.0050 | +.0000 | +.0000 | – | |
| – | – | –.0020 | –.0010 | –.0010 | – | ||
*Measurement in inches unless otherwise indicated
