NTN
Roulements à rotule sur rouleaux 239/630
Roulement NTN 239/630, Ø630×850×165 mm. Demandez un devis — expédition dans le monde entier.
Type Roulements à rotule sur rouleaux
Dimensions
Ø 630 × 850 × 165 mm
d630Ø alésage (mm)
×
D850Ø extérieur (mm)
×
B165Largeur (mm)
Demande de devis
En stock
Spécifications techniques
| Brand | NTN |
| d - Internal diameter | 630 mm |
| D - External diameter | 850 mm |
| B - Bearing/Inner ring width | 165 mm |
| d2 - External diameter inner ring | 690 mm |
| D1 - Inner diameter outer ring | 781 mm |
| rs - Min fillet radius | 6 mm |
| Number of lubrication holes | 8 |
| b - Groove width | 27 mm |
| k - Hole diameter | 16 mm |
| Radial clearance class | CN |
| Mass | 277 kg |
| C - Dynamic load | 4100000000 mN |
| C0 - Static load | 9250000000 mN |
| Cu - Fatigue limit load | 545000000 mN |
| e - Coefficient | 0.18 |
| Y0 - Static axial load coefficient | 3.58 |
| Y1 - Lower axial load coefficient | 3.66 |
| Y2 - Upper axial load coefficient | 5.46 |
| N lim - Oil lubrication limit speed | 2520 °/s |
| N lim - Grease lubrication limit speed | 1920 °/s |
| Tmin - Min operating temperature | 233,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da min - Min shoulder diameter IR | 658 mm |
| Da max - Max shoulder diameter OR | 822 mm |
| ra max - Max shaft & housing fillet radius | 5 mm |
Produits associés
NTN 239/630