NTN
Roulements à aiguilles NA4909R
Roulement NTN NA4909R, Ø45×68×22 mm. Demandez un devis — expédition dans le monde entier.
Type Roulements à aiguilles
Dimensions
Ø 45 × 68 × 22 mm
d45Ø alésage (mm)
×
D68Ø extérieur (mm)
×
B22Largeur (mm)
Demande de devis
En stock
Spécifications techniques
| Brand | NTN |
| d - Internal diameter | 45 mm |
| D - External diameter | 68 mm |
| C - Width of bearing, drawn cup or outer ring | 22 mm |
| F - Under roller diameter | 52 mm |
| rs - Min fillet radius | 0,6 mm |
| s - Max axial offset | 1 mm |
| Lubrication hole on outer ring | Oui/Yes |
| k - Hole diameter | 3 mm |
| Lubrication hole on inner ring | Non/No |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0,27 kg |
| Cr - Dynamic load rating | 46000000 mN |
| C0r - Static load rating | 73000000 mN |
| N lim - Grease lubrication limit speed | 30000 °/s |
| N lim - Oil lubrication limit speed | 45000 °/s |
| Tmin - Min operating temperature | 253,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 49 mm |
| Da max - Max shoulder diameter OR | 64 mm |
| ras max - Max shaft & housing fillet radius | 0,6 mm |
Produits associés
NTN NA4909R