Four-point contact ball bearings with seals or shields can accommodate radial, axial and moment loads simultaneously. One bearing series is based on a single cross section which remains constant as the bore diameter increases, leading to significant space and weight savings. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out. The bearings are available with and inch boundary dimensions.
| d | 63.5 mm | Bore diameter |
|---|---|---|
| D | 79.375 mm | Outside diameter |
| H | 7.938 mm | Radial cross section |
| B | 7.938 mm | Width |
| d1 | ≈ 69.38 mm | Shoulder diameter inner ring |
| d2 | ≈ 68.555 mm | Recess diameter inner ring |
| D1 | ≈ 73.495 mm | Shoulder diameter outer ring |
| D2 | ≈ 74.295 mm | Recess diameter outer ring |
3.969 mm | Ball diameter | |
1.016 mm | Maximum radius of shaft or housing fillet |
| Dynamic load rating, Kaydon, radial direction | CK | 3.77 kN |
|---|---|---|
| Basic static load rating, radial direction | C0 | 5.07 kN |
| Basic static load rating, axial direction | C0a | 12.6 kN |
| Basic dynamic load rating, moment | CM | 0.101 kN·m |
| Basic static load rating, moment | C0M | 0.181 kN·m |
| Starting torque max. no load | 0.0564 N·m | |
| Limiting speed | 1 200 r/min |
General bearing specifications
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