4R4426 NTN ROLL NECK BEARINGS for ROLLING MILL
| Brand Name: | NTN |
| Model Number: | 4R4426 |
| Series: | M348400 |
| Cone Part Number: | M348448WS |
| Cup Part Number: | M348410 |
| Design Units: | Imperial |
| Bearing Weight: | 17.6 Kg |
| Cage Type: | Stamped Steel |
| d: | 247.650 mm |
| D: | 346.075 mm |
| PDF |
4R4426 |
Product Details
| Series | M348400 |
| Cone Part Number | M348448WS |
| Cup Part Number | M348410 |
| Design Units | Imperial |
| Bearing Weight | 17.6 Kg |
| Cage Type | Stamped Steel |
| d | 247.650 mm |
| D | 346.075 mm |
| B - Cone Width | 63.5 mm |
| C - Cup Width | 50.800 mm |
| B | 63.503 mm |
| R - Cone Backface To Clear Radius1 | 6.35 mm |
| r - Cup Backface To Clear Radius2 | 6.35 mm |
| da - Cone Frontface Backing Diameter | 262.89 mm |
| db - Cone Backface Backing Diameter | 273.05 mm |
| Da - Cup Frontface Backing Diameter | 332.99 mm |
| Db - Cup Backface Backing Diameter | 321.06 mm |
| Ab - Cage-Cone Frontface Clearance | 4.8 mm |
| Aa - Cage-Cone Backface Clearance | 3 mm |
| a - Effective Center Location3 | -1.3 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 49500 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 191000 lbf |
| C0 - Static Radial Rating | 365000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 29100 lbf |
| K - Factor7 | 1.7 |
| e - ISO Factor8 | 0.34 |
| Y - ISO Factor9 | 1.75 |
| G1 - Heat Generation Factor (Roller-Raceway) | 1450.8 |
| G2 - Heat Generation Factor (Rib-Roller End) | 212.9 |
| Cg - Geometry Factor | 0.148 |
