45 mm x 68 mm x 12 mm KOYO 6909 deep groove ball bearings
We work 5213 lb radial static load capacity: closely with our KOYO 6909 deep groove ball bearings manufacturing 4800 RPM maximum rpm: partners to bring the best value to customers.
What is 6909 bearing interchange？
| Brand Name: | KOYO |
| Model Number: | 6909 |
| Series: | LM78300 |
| Cone Part Number: | LM78349 |
| Cup Part Number: | LM78310A |
| Design Units: | Imperial |
| Bearing Weight: | 0.20 Kg |
| Cage Type: | Stamped Steel |
| d: | 34.989 mm |
| D: | 61.973 mm |
| PDF |
6909 |
Product Details
| Series | LM78300 |
| Cone Part Number | LM78349 |
| Cup Part Number | LM78310A |
| Design Units | Imperial |
| Bearing Weight | 0.20 Kg |
| Cage Type | Stamped Steel |
| d | 34.989 mm |
| D | 61.973 mm |
| B - Cone Width | 17.000 mm |
| C - Cup Width | 13.599 mm |
| B | 16.701 mm |
| R - Cone Backface To Clear Radius1 | 3.560 mm |
| r - Cup Backface To Clear Radius2 | 1.52 mm |
| da - Cone Frontface Backing Diameter | 39.88 mm |
| db - Cone Backface Backing Diameter | 45.97 mm |
| Da - Cup Frontface Backing Diameter | 59.44 mm |
| Db - Cup Backface Backing Diameter | 54.10 mm |
| Ab - Cage-Cone Frontface Clearance | 1.8 mm |
| Aa - Cage-Cone Backface Clearance | 0.3 mm |
| a - Effective Center Location3 | -2.5 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 2480 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 9560 lbf |
| C0 - Static Radial Rating | 11800 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 1880 lbf |
| K - Factor7 | 1.31 |
| e - ISO Factor8 | 0.44 |
| Y - ISO Factor9 | 1.35 |
| G1 - Heat Generation Factor (Roller-Raceway) | 16.1 |
| G2 - Heat Generation Factor (Rib-Roller End) | 16.2 |
| Cg - Geometry Factor | 0.0678 |
