NTN NK68/25R Needle bearings
| Brand Name |
NTN |
| Model Number |
NK68/25R |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NTN NK68/25R bearing Size Chart (mm/inches) |
|---|
| Series | 64000 |
| Cone Part Number | 64450W |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 108000 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 27900 lbf |
| d | 4.5000 in |
| B - Cone Width | 1.6250 in |
| R - Cone Backface To Clear Radius3 | 0.14 in |
| da - Cone Frontface Backing Diameter | 4.92 in |
| db - Cone Backface Backing Diameter | 5.16 in |
| Ab - Cage-Cone Frontface Clearance | 0.11 in |
| Aa - Cage-Cone Backface Clearance | 0.2 in |
| a - Effective Center Location4 | 0.05 in |
| C90 - Dynamic Radial Rating (90 million revolutions)5 | 16000 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)6 | 61800 lbf |
| C0 - Static Radial Rating | 94200 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 14100 lbf |
| K - Factor8 | 1.13 |
| G1 - Heat Generation Factor (Roller-Raceway) | 218.8 |
| G2 - Heat Generation Factor (Rib-Roller End) | 45.3 |
| Cg - Geometry Factor | 0.115 |