NNU4948 NSK Double row cylindrical roller bearings
| Brand Name: |
NSK |
| Model Number: |
NNU4948 |
| Series: |
752000 |
| Cone Part Number: |
EE752305 |
| Design Units: |
Imperial |
| Cage Type: |
Pin-Type |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: |
961000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: |
249000 lbf |
| d: |
30.5000 in |
| B - Cone Width: |
3.1875 in |
| PDF |
NNU4948 |
Product Details
| Series |
752000 |
| Cone Part Number |
EE752305 |
| Design Units |
Imperial |
| Cage Type |
Pin-Type |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 |
961000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 |
249000 lbf |
| d |
30.5000 in |
| B - Cone Width |
3.1875 in |
| R - Cone Backface To Clear Radius3 |
0.25 in |
| da - Cone Frontface Backing Diameter |
31.42 in |
| db - Cone Backface Backing Diameter |
31.89 in |
| Ab - Cage-Cone Frontface Clearance |
0.51 in |
| Aa - Cage-Cone Backface Clearance |
0.47 in |
| a - Effective Center Location4 |
2.5 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 |
143000 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 |
552000 lbf |
| C0 - Static Radial Rating |
1240000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 |
98400 lbf |
| K - Factor8 |
1.45 |
| G1 - Heat Generation Factor (Roller-Raceway) |
12500 |
| G2 - Heat Generation Factor (Rib-Roller End) |
1880.8 |
| Cg - Geometry Factor |
0.312 |