NTN
Roulements à rouleaux coniques 4T-643/632
Roulement NTN 4T-643/632, Ø69.85×136.525×41.275 mm. Demandez un devis — expédition dans le monde entier.
Type Roulements à rouleaux coniques
Dimensions
Ø 69,85 × 136,525 × 41,275 mm
d69,85Ø alésage (mm)
×
D136,525Ø extérieur (mm)
×
B41,275Largeur (mm)
Demande de devis
En stock
Spécifications techniques
| Brand | NTN |
| d - Internal diameter | 69,85 mm |
| D - External diameter | 136,525 mm |
| B - Bearing/Inner ring width | 41,275 mm |
| C - Outer ring width | 31,75 mm |
| T - Total width | 41,275 mm |
| d1 - External diameter inner ring | 99,3 mm |
| a - Charge load application point | 29,875 mm |
| Mass | 2,63 kg |
| C - Dynamic load | 215000000 mN |
| C0 - Static load | 262000000 mN |
| Cu - Fatigue limit load | 31900000 mN |
| A2 - Rating life coefficient | 1 |
| e - Coefficient | 0.36 |
| Y0 - Static axial load coefficient | 0.91 |
| Y2 - Upper axial load coefficient | 1.66 |
| N lim - Oil lubrication limit speed | 22800 °/s |
| N lim - Grease lubrication limit speed | 16800 °/s |
| Tmin - Min operating temperature | 233,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da max - Max shoulder diameter IR | 80 mm |
| db min - Min IR shoulder diameter | 86 mm |
| Da max - Max shoulder diameter OR | 118 mm |
| Db min - Min OR shoulder diameter | 125 mm |
| ra max - Max fillet radius | 3,5 mm |
| r1a - Max fillet radius | 3,3 mm |
| Cone designation | 4T-643 |
| Cup designation | 4T-632 |
Produits associés
NTN 4T-643/632