NN49/1000K TIMKEN Double row cylindrical roller bearings
| Brand Name: | TIMKEN |
| Model Number: | NN49/1000K |
| Series: | M252300 |
| Cone Part Number: | M252330X |
| Design Units: | Imperial |
| Cage Type: | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 492000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 128000 lbf |
| d: | 9.25 in |
| B - Cone Width: | 2.9375 in |
Product Details
| Series | M252300 |
| Cone Part Number | M252330X |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 492000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 128000 lbf |
| d | 9.25 in |
| B - Cone Width | 2.9375 in |
| R - Cone Backface To Clear Radius3 | 0.25 in |
| da - Cone Frontface Backing Diameter | 10.31 in |
| db - Cone Backface Backing Diameter | 10.71 in |
| Ab - Cage-Cone Frontface Clearance | 0.19 in |
| Aa - Cage-Cone Backface Clearance | 0.3 in |
| a - Effective Center Location4 | -0.26 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 73200 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 283000 lbf |
| C0 - Static Radial Rating | 455000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 41700 lbf |
| K - Factor8 | 1.76 |
| G1 - Heat Generation Factor (Roller-Raceway) | 1839.2 |
| G2 - Heat Generation Factor (Rib-Roller End) | 226.1 |
| Cg - Geometry Factor | 0.159 |