68/9 KOYO Single-row deep groove ball bearings
| Brand Name: | KOYO |
| Model Number: | 68/9 |
| Series: | LM501300 |
| Cone Part Number: | LM501349HP |
| Cup Part Number: | LM501314 |
| Design Units: | Imperial |
| Bearing Weight: | 0.4 Kg |
| Cage Type: | Stamped Steel |
| d: | 41.275 mm |
| D: | 73.431 mm |
Product Details
| Series | LM501300 |
| Cone Part Number | LM501349HP |
| Cup Part Number | LM501314 |
| Design Units | Imperial |
| Bearing Weight | 0.4 Kg |
| Cage Type | Stamped Steel |
| d | 41.275 mm |
| D | 73.431 mm |
| B - Cone Width | 19.812 mm |
| C - Cup Width | 16.604 mm |
| B | 21.433 mm |
| R - Cone Backface To Clear Radius1 | 3.560 mm |
| r - Cup Backface To Clear Radius2 | 0.76 mm |
| da - Cone Frontface Backing Diameter | 46.48 mm |
| db - Cone Backface Backing Diameter | 53.09 mm |
| Da - Cup Frontface Backing Diameter | 71.10 mm |
| Db - Cup Backface Backing Diameter | 65.02 mm |
| Ab - Cage-Cone Frontface Clearance | 1.8 mm |
| Aa - Cage-Cone Backface Clearance | 0.3 mm |
| a - Effective Center Location3 | -3.3 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 4360 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 16800 lbf |
| C0 - Static Radial Rating | 16700 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 2980 lbf |
| K - Factor7 | 1.46 |
| e - ISO Factor8 | 0.4 |
| Y - ISO Factor9 | 1.5 |
| G1 - Heat Generation Factor (Roller-Raceway) | 23.3 |
| G2 - Heat Generation Factor (Rib-Roller End) | 13.3 |
| Cg - Geometry Factor | 0.0739 |
