Bearing RNA49/28 AST RNA49/28 AST bearing Size Chart (mm/inches) |
|---|
| Series | 2500 |
| Cone Part Number | 2578 |
| Cup Part Number | 2526X |
| Design Units | Imperial |
| Bearing Weight | 0.5 Kg |
| Cage Type | Stamped Steel |
| d | 28.575 mm |
| D | 71.999 mm |
| B - Cone Width | 25.357 mm |
| C - Cup Width | 19.050 mm |
| B | 23.813 mm |
| R - Cone Backface To Clear Radius1 | 2.290 mm |
| r - Cup Backface To Clear Radius2 | 2.03 mm |
| da - Cone Frontface Backing Diameter | 35.05 mm |
| db - Cone Backface Backing Diameter | 39.12 mm |
| Da - Cup Frontface Backing Diameter | 66.00 mm |
| Db - Cup Backface Backing Diameter | 60.96 mm |
| Ab - Cage-Cone Frontface Clearance | 1.5 mm |
| Aa - Cage-Cone Backface Clearance | 0.5 mm |
| a - Effective Center Location3 | -8.6 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 4880 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 18800 lbf |
| C0 - Static Radial Rating | 21200 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 2280 lbf |
| K - Factor7 | 2.14 |
| e - ISO Factor8 | 0.27 |
| Y - ISO Factor9 | 2.19 |
| G1 - Heat Generation Factor (Roller-Raceway) | 23.6 |
| G2 - Heat Generation Factor (Rib-Roller End) | 9.6 |
| Cg - Geometry Factor | 0.0656 |