NTN
Roulements à rouleaux coniques 4T-30311D
Roulement NTN 4T-30311D, Ø55×120×29 mm. Demandez un devis — expédition dans le monde entier.
Type Roulements à rouleaux coniques
Dimensions
Ø 55 × 120 × 29 mm
d55Ø alésage (mm)
×
D120Ø extérieur (mm)
×
B29Largeur (mm)
Demande de devis
En stock
Spécifications techniques
| Brand | NTN |
| d - Internal diameter | 55 mm |
| D - External diameter | 120 mm |
| B - Bearing/Inner ring width | 29 mm |
| C - Outer ring width | 21 mm |
| T - Total width | 31,5 mm |
| d1 - External diameter inner ring | 88,5 mm |
| a - Charge load application point | 38 mm |
| rs - Min fillet radius | 2,5 mm |
| r1s - Min fillet radius | 2 mm |
| Mass | 1,58 kg |
| ISO 355 reference | T7FB055 |
| C - Dynamic load | 146000000 mN |
| C0 - Static load | 154000000 mN |
| Cu - Fatigue limit load | 18800000 mN |
| A2 - Rating life coefficient | 1 |
| e - Coefficient | 0.83 |
| Y0 - Static axial load coefficient | 0.4 |
| Y2 - Upper axial load coefficient | 0.73 |
| N lim - Oil lubrication limit speed | 22800 °/s |
| N lim - Grease lubrication limit speed | 17400 °/s |
| Tmin - Min operating temperature | 233,15 °K |
| Tmax - Max operating temperature | 393,15 °K |
| da max - Max shoulder diameter IR | 68 mm |
| db min - Min IR shoulder diameter | 67 mm |
| Da min - Min shoulder diameter OR | 94 mm |
| Da max - Max shoulder diameter OR | 110 mm |
| Db min - Min OR shoulder diameter | 113 mm |
| Ca - Min clearance | 4 mm |
| Cb - Min clearance | 10,5 mm |
| ra max - Max fillet radius | 2 mm |
| r1a - Max fillet radius | 2 mm |
Produits associés
NTN 4T-30311D