NNER RINGÂ Tolerance in um
| d | ^dmp | ^ds | Vdp2) | Vdmp | Kia | Sd | Sia | ^Bs | ||||
| Diameter Series | ||||||||||||
| mm | 7,8,9 | 1,7,2,3,4 | ||||||||||
| over | incl. | high | low | high | low | max. | max. | max. | max. | max. | high | |
| 1)0.6 | 2.5 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 |
| 2.5 | 10 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 |
| 10 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 |
| 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 3 | 4 | 4 | 0 |
| 30 | 50 | 0 | -6 | 0 | -6 | 6 | 4 | 3 | 4 | 4 | 4 | 0 |
| 50 | 80 | 0 | -7 | 0 | -7 | 7 | 5 | 3.5 | 4 | 5 | 5 | 0 |
 1) 0.6 is included.
2) Diameter Series 7 refers to those defined by GB273.3 as the  miniature    bearing series 7.
OUTER RINGÂ Â Tolerance in um
| d | ^Dmp | ^Ds | Vdp2) | VDmp | Kia | SD | Sea | ^Cs | ||||
| mm | Diameter Series | |||||||||||
| 7,8,9 | 1,7,2,3,4 | |||||||||||
| over | incl. | high | low | high | low | max. | max. | max. | max. | max. | high | |
| 1)2.5 | 6 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | Identical to |
| 6 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | ^Bs |
| 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 4 | 4 | 5 | of inner ring |
| ? | of same bearing | |||||||||||
| 30 | 50 | 0 | -6 | 0 | -6 | 6 | 5 | 3 | 5 | 4 | 5 | |
| 50 | 80 | 0 | -7 | 0 | -7 | 7 | 5 | 3.5 | 5 | 4 | 5 | |
| 80 | 120 | 0 | -8 | 0 | -8 | 8 | 6 | 4 | 6 | 5 | 6 | |
| 120 | 150 | 0 | -9 | 0 | -9 | 9 | 7 | 5 | 7 | 5 | 7 | |
 1)2.5 is included.
2)These windage is applicable for diameter series 1.7.2.3.and 4.
3)Not applicable for closed type bearings
4)Diameter Series 7 refers to those defined by GB273.3 as the miniature bearing series 7.
2)No values for diameter series 7,8.
4)Fit for before assembling and after disestablish of snap rings.
ABEC STANDARD BEARING TOLERANCES FOR INCH-DIMENSION BALL BEARINGS
| Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Unit:Â (Inch)Â 1″=25.4mm | |||||
| ABEC | O.D. SIZE | Radial | Mean Diam. | ||
| Runout | Tolerance | ||||
| Inner | Outer | Bore | O.D. | ||
| Ring | Ring | ||||
| ABEC-7 | (0 – 1.1811 in.) | 0.0001 | 0.00015 | –.0002 | –.0002 |
 Â
|                    Flange outside diameter tolerance | |||||
| (Unit : μm) | |||||
| D1 | Column 1 | Column 2 | |||
| (mm) | ΔD1s | ||||
| Over | Incl. | Upper | Bottom | Upper | Bottom |
| 10 | 220 | -36 | 0 | -36 | |
| 10 | 18 | 270 | -43 | 0 | -43 |
| 18 | 30 | 330 | -52 | 0 | -52 |
  Remarks : When the flange outside diameter is used for location, column 2   shall apply.
| Tolerances of flange width and tolerance of rotation precision related to flange | ||||||||
| (Unit : μm) | ||||||||
| D | ABEC-7 | ABEC-7 | ABEC-7 | ABEC-7 | ||||
| (mm) | ΔC1s | VC1s | D | SD1 | Sea1 | |||
| Over | Incl. | Upper | Bottom | MAX | (mm) | MAX | ||
| 2.5*1 | 30 | 0 | -120 | 2.5 | Over | Incl. | ||
| -80 | 2.5*1 | 18 | 4 | 7 | ||||
| 18 | 30 | 4 | 7 | |||||
 *1 D = 2.5mm is included in this dimension division.
*2 the values apply only up to and including d = 2.5mm.
*3 the values apply only up to and including d = 10mm.