7930B KOYO Single-row, matched pair angular contact ball bearings
| Brand Name: | KOYO |
| Model Number: | 7930B |
| Series: | 8500 |
| Cone Part Number: | 8578 |
| Cup Part Number: | 8522 |
| Design Units: | Imperial |
| Bearing Weight: | 11.5 Kg |
| Cage Type: | Stamped Steel |
| d: | 241.300 mm |
| D: | 328.625 mm |
| PDF |
7930B |
Product Details
| Series | 8500 |
| Cone Part Number | 8578 |
| Cup Part Number | 8522 |
| Design Units | Imperial |
| Bearing Weight | 11.5 Kg |
| Cage Type | Stamped Steel |
| d | 241.300 mm |
| D | 328.625 mm |
| B - Cone Width | 52.388 mm |
| C - Cup Width | 36.513 mm |
| B | 52.388 mm |
| R - Cone Backface To Clear Radius1 | 6.35 mm |
| r - Cup Backface To Clear Radius2 | 3.30 mm |
| da - Cone Frontface Backing Diameter | 252.98 mm |
| db - Cone Backface Backing Diameter | 263.91 mm |
| Da - Cup Frontface Backing Diameter | 314.96 mm |
| Db - Cup Backface Backing Diameter | 306.07 mm |
| Ab - Cage-Cone Frontface Clearance | 3.3 mm |
| Aa - Cage-Cone Backface Clearance | 6.1 mm |
| a - Effective Center Location3 | 7.6 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 30700 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 119000 lbf |
| C0 - Static Radial Rating | 240000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 21400 lbf |
| K - Factor7 | 1.44 |
| e - ISO Factor8 | 0.41 |
| Y - ISO Factor9 | 1.48 |
| G1 - Heat Generation Factor (Roller-Raceway) | 1050.5 |
| G2 - Heat Generation Factor (Rib-Roller End) | 172.4 |
| Cg - Geometry Factor | 0.14 |
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