NTN 4T-NA56425SW/56650D tapered roller bearings
High Quality NTN 4T-NA56425SW/56650D tapered roller bearings. Competitive Pricing. Accept Small EE640191 Cone Part Number Order. Easy 640000 Series and Fast Shipping.
| Series | 640000 |
| Cone Part Number | EE640191 |
| Cup Part Number | 640260 |
| Design Units | Imperial |
| Bearing Weight | 88.200 Kg |
| Cage Type | Pin-Type |
| d | 488.671 mm |
| D | 660.400 mm |
| B – Cone Width | 94.458 mm |
| C – Cup Width | 69.850 mm |
| B | 93.663 mm |
| R – Cone Backface To Clear Radius1 | 6.35 mm |
| r – Cup Backface To Clear Radius2 | 6.35 mm |
| da – Cone Frontface Backing Diameter | 513.08 mm |
| db – Cone Backface Backing Diameter | 521.97 mm |
| Da – Cup Frontface Backing Diameter | 632.71 mm |
| Db – Cup Backface Backing Diameter | 624.08 mm |
| Ab – Cage-Cone Frontface Clearance | 6.6 mm |
| Aa – Cage-Cone Backface Clearance | 8.1 mm |
| a – Effective Center Location3 | 4.8 mm |
| C90 – Dynamic Radial Rating (90 million revolutions)4 | 138000 lbf |
| C1 – Dynamic Radial Rating (1 million revolutions)5 | 533000 lbf |
| C0 – Static Radial Rating | 1030000 lbf |
| Ca90 – Dynamic Thrust Rating (90 million revolutions)6 | 72600 lbf |
| K – Factor7 | 1.9 |
| e – ISO Factor8 | 0.31 |
| Y – ISO Factor9 | 1.95 |
| G1 – Heat Generation Factor (Roller-Raceway) | 6322.4 |
| G2 – Heat Generation Factor (Rib-Roller End) | 601.7 |
| Cg – Geometry Factor | 0.231 |
Detailed Parameters
parameter：
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