NNU4968 KOYO Double-row cylindrical roller bearings
| Brand Name: | KOYO |
| Model Number: | NNU4968 |
| Cone Part Number: | LL319349 |
| Design Units: | Imperial |
| Cage Type: | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 24800 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 6440 lbf |
| d: | 3.7500 in |
| B - Cone Width: | 0.5938 in |
| R - Cone Backface To Clear Radius3: | 0.06 in |
| PDF |
NNU4968 |
Product Details
| Cone Part Number | LL319349 |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 24800 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 6440 lbf |
| d | 3.7500 in |
| B - Cone Width | 0.5938 in |
| R - Cone Backface To Clear Radius3 | 0.06 in |
| da - Cone Frontface Backing Diameter | 3.94 in |
| db - Cone Backface Backing Diameter | 4.06 in |
| Ab - Cage-Cone Frontface Clearance | 0.12 in |
| Aa - Cage-Cone Backface Clearance | 0.01 in |
| a - Effective Center Location4 | 0.17 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 3700 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 14300 lbf |
| C0 - Static Radial Rating | 22400 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 2230 lbf |
| K - Factor8 | 1.66 |
| G1 - Heat Generation Factor (Roller-Raceway) | 86.3 |
| G2 - Heat Generation Factor (Rib-Roller End) | 88.3 |
| Cg - Geometry Factor | 0.107 |
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