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 |