NTN
Roulements à rouleaux coniques 4T-2789/2729
Roulement NTN 4T-2789/2729, Ø39.688×76.2×25.654 mm. Demandez un devis — expédition dans le monde entier.
Type Roulements à rouleaux coniques
Dimensions
Ø 39,688 × 76,2 × 25,654 mm
d39,688Ø alésage (mm)
×
D76,2Ø extérieur (mm)
×
B25,654Largeur (mm)
Demande de devis
En stock
Spécifications techniques
| Brand | NTN |
| d - Internal diameter | 39,688 mm |
| D - External diameter | 76,2 mm |
| B - Bearing/Inner ring width | 25,654 mm |
| C - Outer ring width | 19,05 mm |
| T - Total width | 23,812 mm |
| d1 - External diameter inner ring | 55 mm |
| a - Charge load application point | 16 mm |
| rs - Min fillet radius | 3,5 mm |
| r1s - Min fillet radius | 0,8 mm |
| Mass | 0,48 kg |
| C - Dynamic load | 81000000 mN |
| C0 - Static load | 90500000 mN |
| A2 - Rating life coefficient | 1 |
| e - Coefficient | 0.3 |
| Y0 - Static axial load coefficient | 1.09 |
| Y2 - Upper axial load coefficient | 1.98 |
| N lim - Oil lubrication limit speed | 40800 °/s |
| N lim - Grease lubrication limit speed | 30600 °/s |
| Tmin - Min operating temperature | 233,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da max - Max shoulder diameter IR | 45 mm |
| db min - Min IR shoulder diameter | 52 mm |
| Da max - Max shoulder diameter OR | 70 mm |
| Db min - Min OR shoulder diameter | 68 mm |
| ra max - Max fillet radius | 3,5 mm |
| r1a - Max fillet radius | 0,8 mm |
| Cone designation | 4T-2789 |
| Cup designation | 4T-2729 |
Produits associés
NTN 4T-2789/2729