N338M TIMKEN Tapered Roller Bearings Double-row
| Brand Name: | TIMKEN |
| Model Number: | N338M |
| Series: | M257100 |
| Cone Part Number: | M257149DW |
| Design Units: | Imperial |
| Cage Type: | Stamped Steel |
| db - Cone Backface Backing Diameter: | 12.68 in |
| C1 - Dynamic Radial Rating (1 million revolutions)1: | 269000 lbf |
| C0 - Static Radial Rating: | 477000 lbf |
| d: | 12 in |
Product Details
| Series | M257100 |
| Cone Part Number | M257149DW |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| db - Cone Backface Backing Diameter | 12.68 in |
| C1 - Dynamic Radial Rating (1 million revolutions)1 | 269000 lbf |
| C0 - Static Radial Rating | 477000 lbf |
| d | 12 in |
| B - Double Cone Width | 5.1250 in |
| R - Cone Frontface To Clear Radius2 | 0.060 in |
| da - Cone Frontface Backing Diameter | 12.68 in |
| Ab - Cage-Cone Frontface Clearance | 0.18 in |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 69700 lbf |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 468000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 121000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 39700 lbf |
| K - Factor7 | 1.76 |
| G1 - Heat Generation Factor (Roller-Raceway)8 | 2160 |
| G2 - Heat Generation Factor (Rib-Roller End) | 303 |
| Cg - Geometry Factor9 | 0.167 |