NTN 4T-3781 Roller Bearings
| d: | 65 mm |
| D: | 100 mm |
| B: | 18 mm |
| d1: | 77.26 mm |
| d2: | 74.9 mm |
| D2: | 91.1 mm |
| r1,2 min.: | 1.1 mm |
| r3,4 min.: | 0.6 mm |
Product Details
| d | 65 mm |
| D | 100 mm |
| B | 18 mm |
| d1 | 77.26 mm |
| d2 | 74.9 mm |
| D2 | 91.1 mm |
| r1,2 min. | 1.1 mm |
| r3,4 min. | 0.6 mm |
| a | 20.2 mm |
| da min. | 71 mm |
| da max. | 76.5 mm |
| db min. | 71 mm |
| db max. | 74.1 mm |
| Da max. | 94 mm |
| Db max. | 95.8 mm |
| ra max. | 1 mm |
| rb max. | 0.6 mm |
| Basic dynamic load rating C | 20.3 kN |
| Basic static load rating C0 | 15.6 kN |
| Fatigue load limit Pu | 0.655 kN |
| Attainable speed for grease lubrication | 22000 r/min |
| Ball diameter Dw | 8.731 mm |
| Number of balls z | 25 |
| Preload class A GA | 110 N |
| Static axial stiffness, preload class A | 59 N/µm |
| Preload class B GB | 330 N |
| Static axial stiffness, preload class B | 92 N/µm |
| Preload class C GC | 650 N |
| Static axial stiffness, preload class C | 124 N/µm |
| Calculation factor f | 1.09 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.03 |
| Calculation factor f2C | 1.05 |
| Calculation factor fHC | 1.01 |
| Calculation factor f0 | 8.4 |
| Mass bearing | 0.41 kg |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |
