Bearing 81248-M INA 81248-M INA bearing Size Chart (mm/inches) |
|---|
| Series | 33109 |
| Cone Part Number | X33109 |
| Cup Part Number | Y33109 |
| Design Units | METRIC |
| Bearing Weight | 0.5 Kg |
| Cage Type | Stamped Steel |
| d | 45.000 mm |
| D | 80 mm |
| B - Cone Width | 26.000 mm |
| C - Cup Width | 20.500 mm |
| B | 26.000 mm |
| R - Cone Backface To Clear Radius1 | 1.520 mm |
| r - Cup Backface To Clear Radius2 | 1.52 mm |
| da - Cone Frontface Backing Diameter | 52.07 mm |
| db - Cone Backface Backing Diameter | 55.12 mm |
| Da - Cup Frontface Backing Diameter | 76.96 mm |
| Db - Cup Backface Backing Diameter | 71.12 mm |
| Ab - Cage-Cone Frontface Clearance | 2.3 mm |
| Aa - Cage-Cone Backface Clearance | 1.5 mm |
| a - Effective Center Location3 | -6.6 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 29200 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 113000 N |
| C0 - Static Radial Rating | 119000 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 19200 N |
| K - Factor7 | 1.52 |
| e - ISO Factor8 | 0.38 |
| Y - ISO Factor9 | 1.57 |
| G1 - Heat Generation Factor (Roller-Raceway) | 35.7 |
| G2 - Heat Generation Factor (Rib-Roller End) | 16.5 |
| Cg - Geometry Factor | 0.0843 |