ABIS Precision Ball Bearings Radial Play
With bores of 0.6 to 90mm and precision grades to ABEC 7
General Information
ABIS Bearings Radial Play
Service requirements | RADIAL PLAY | Â Remarks | ||||||||||
Miniature Bearings | Standard Metric Bearings | |||||||||||
l/D | Â <10 | 10 only | 10+ -18 | 18+ -24 | 24+ -30 | 30+ -40 | 40+ -50 | Â | ||||
0.001 mm | 0.001 inch | Ref | 0.001mm | Ref | ||||||||
Small bearing clearance required axially without the use of preload shims or springs. Low torque not the prime requirement. High thrust loads will not occur. | TIGHT | Â 0-5 Â Â Â Â 3-8 | Â 0-2 Â Â Â Â 1-3 | Â MC1 Â Â Â Â Â MC2 | 0-7 | Â 0-9 | 0-10 | 1-11 | Â 1-11 | 1-11 | C2 | Interference fits must be avoided. Beware differential expansion. Careful attention should be paid to any excessive temperature rise in service. |
Moderate torque acceptable. Moderate thrust loads may occur. | MEDIUM | Â Â 5-10 | Â 2-4 | MC3 | 2-13 | 3-18 | 5-20 | 5-20 | 6-20 | 6-23 | CN (CO) Std | Interference fits are not recommended. |
8-13 | 3-5 | MC4 | 8-23 | 11-25 | 13-28 | 13-28 | 15-33 | 18-36 | C3 | |||
Minimal torque required. Or  High thrust load capability. | LOOSE |  13-20 | 5-8 | MC5 | 14-29 | 18-33 | 20-36 | 23-41 | 28-46 | 30-51 | C4 | Moderate interference fits can be applied. Axial play may require to be controlled by shims or springs. |
 20-28 |  8-11 | MC6 |  20-37 |  25-45 | 28-48 | 30-53 | 40-64 | 45-73 | C5 | |||
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Materials
| Material | JIS | ISO | BS | |||
| Nut | Washer | Nut | Washer | Nut | Washer | |
| Carbon Steel | C45 | DC01 | 1.0503 | 1.0330 | 070M46 | CR4 |
| Stainless Steel | SUS304 | SUS304 | 1.4301 | 1.4301 | 304S31 | 304S31 |
