684 KOYO Single-row deep groove ball bearings
| Brand Name: | KOYO |
| Model Number: | 684 |
| Series: | 15000 |
| Cone Part Number: | 15117X |
| Cup Part Number: | 15250 |
| Design Units: | Imperial |
| Bearing Weight: | 0.30 Kg |
| Cage Type: | Stamped Steel |
| d: | 30 mm |
| D: | 63.500 mm |
| PDF |
684 |
Product Details
| Series | 15000 |
| Cone Part Number | 15117X |
| Cup Part Number | 15250 |
| Design Units | Imperial |
| Bearing Weight | 0.30 Kg |
| Cage Type | Stamped Steel |
| d | 30 mm |
| D | 63.500 mm |
| B - Cone Width | 20.638 mm |
| C - Cup Width | 15.875 mm |
| B | 20.638 mm |
| R - Cone Backface To Clear Radius1 | 1.520 mm |
| r - Cup Backface To Clear Radius2 | 1.27 mm |
| da - Cone Frontface Backing Diameter | 35.05 mm |
| db - Cone Backface Backing Diameter | 37.08 mm |
| Da - Cup Frontface Backing Diameter | 59.44 mm |
| Db - Cup Backface Backing Diameter | 55.88 mm |
| Ab - Cage-Cone Frontface Clearance | 1.8 mm |
| Aa - Cage-Cone Backface Clearance | 0.8 mm |
| a - Effective Center Location3 | -5.8 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 3490 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 13500 lbf |
| C0 - Static Radial Rating | 12100 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 2090 lbf |
| K - Factor7 | 1.67 |
| e - ISO Factor8 | 0.35 |
| Y - ISO Factor9 | 1.71 |
| G1 - Heat Generation Factor (Roller-Raceway) | 14.6 |
| G2 - Heat Generation Factor (Rib-Roller End) | 10 |
| Cg - Geometry Factor | 0.0606 |
