NTN
Roulements à aiguilles RNA4938
Roulement NTN RNA4938, Ø45×260×20 mm. Demandez un devis — expédition dans le monde entier.
Type Roulements à aiguilles
Dimensions
Ø 45 × 260 × 20 mm
d45Ø alésage (mm)
×
D260Ø extérieur (mm)
×
B20Largeur (mm)
Demande de devis
En stock
Spécifications techniques
| Brand | NTN |
| Fw - Under rollers diameter | 215 mm |
| D - External diameter | 260 mm |
| C - Width of bearing, drawn cup or outer ring | 69 mm |
| rs - Min fillet radius | 2 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k - Hole diameter | 4 mm |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 4,53 kg |
| Cr - Dynamic load rating | 390000000 mN |
| C0r - Static load rating | 945000000 mN |
| N lim - Grease lubrication limit speed | 7800 °/s |
| N lim - Oil lubrication limit speed | 11400 °/s |
| Tmin - Min operating temperature | 253,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| Da max - Max shoulder diameter OR | 251 mm |
| ras max - Max shaft & housing fillet radius | 2 mm |
Produits associés
NTN RNA4938