305338A-1 KOYO Double-row angular contact ball bearings
| Brand Name: | KOYO |
| Model Number: | 305338A-1 |
| Series: | 385 |
| Cone Part Number: | 385A |
| Cup Part Number: | 384DC |
| Design Units: | Imperial |
| Bearing Weight: | 3.71 lb |
| Cage Type: | Stamped Steel |
| Ab - Cage-Cone Frontface Clearance: | 0.11 in |
| d: | 2 in |
| PDF |
305338A-1 |
Product Details
| Series | 385 |
| Cone Part Number | 385A |
| Cup Part Number | 384DC |
| Design Units | Imperial |
| Bearing Weight | 3.71 lb |
| Cage Type | Stamped Steel |
| Ab - Cage-Cone Frontface Clearance | 0.11 in |
| d | 2 in |
| D | 3.9370 in |
| B - Cone Width | 0.8640 in |
| C - Double Cup Width | 1.6875 in |
| T - Bearing Width across Cones | 2.0624 in |
| R - Cone Backface To Clear Radius1 | 0.09 in |
| r - Cup Frontface To Clear Radius2 | 0.03 in |
| db - Cone Backface Backing Diameter | 2.4 in |
| Da - Cup Frontface Backing Diameter | 3.68 in |
| Aa - Cage-Cone Backface Clearance | 0.03 in |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 6280 lbf |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 42200 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 10900 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 3810 lbf |
| K - Factor7 | 1.65 |
| e - ISO Factor8 | 0.35 |
| Y1 - ISO Factor9 | 1.91 |
| Y2 - ISO Factor10 | 2.84 |
| G1 - Heat Generation Factor (Roller-Raceway)11 | 42 |
| G2 - Heat Generation Factor (Rib-Roller End) | 15.7 |
| Cg - Geometry Factor12 | 0.0859 |
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