AC3021B KOYO Single-row, matched pair angular contact ball bearings
| Brand Name: | KOYO |
| Model Number: | AC3021B |
| Series: | M349500 |
| Cone Part Number: | M349549 |
| Cup Part Number: | M349511 |
| Design Units: | Imperial |
| Bearing Weight: | 13.80 Kg |
| Cage Type: | Stamped Steel |
| d: | 257.175 mm |
| D: | 342.900 mm |
| PDF |
AC3021B |
Product Details
| Series | M349500 |
| Cone Part Number | M349549 |
| Cup Part Number | M349511 |
| Design Units | Imperial |
| Bearing Weight | 13.80 Kg |
| Cage Type | Stamped Steel |
| d | 257.175 mm |
| D | 342.900 mm |
| B - Cone Width | 57.150 mm |
| C - Cup Width | 44.450 mm |
| B | 57.150 mm |
| R - Cone Backface To Clear Radius1 | 6.35 mm |
| r - Cup Backface To Clear Radius2 | 3.30 mm |
| da - Cone Frontface Backing Diameter | 268.99 mm |
| db - Cone Backface Backing Diameter | 280.92 mm |
| Da - Cup Frontface Backing Diameter | 333.00 mm |
| Db - Cup Backface Backing Diameter | 322.07 mm |
| Ab - Cage-Cone Frontface Clearance | 4.3 mm |
| Aa - Cage-Cone Backface Clearance | 3.8 mm |
| a - Effective Center Location3 | 2.5 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 39700 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 153000 lbf |
| C0 - Static Radial Rating | 321000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 23600 lbf |
| K - Factor7 | 1.68 |
| e - ISO Factor8 | 0.35 |
| Y - ISO Factor9 | 1.73 |
| G1 - Heat Generation Factor (Roller-Raceway) | 1423.3 |
| G2 - Heat Generation Factor (Rib-Roller End) | 193.4 |
| Cg - Geometry Factor | 0.147 |
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