Bearing RNA4901 INA
Bearing RNA4901 INA Deal Boyal Industrial Pte ltd. is your source for OEM Needle Roller Bearing and accessories. We 25 mm d sell GenuineNeedle Roller Bearing at discount prices.
| d: |
25 mm |
| D: |
42 mm |
| B: |
9 mm |
| d1: |
30.6 mm |
| d2: |
30.6 mm |
| D2: |
39.15 mm |
| r1,2 min.: |
0.3 mm |
| r3,4 min.: |
0.2 mm |
| PDF |
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Product Details
| d |
25 mm |
| D |
42 mm |
| B |
9 mm |
| d1 |
30.6 mm |
| d2 |
30.6 mm |
| D2 |
39.15 mm |
| r1,2 min. |
0.3 mm |
| r3,4 min. |
0.2 mm |
| a |
12.4 mm |
| da min. |
27 mm |
| da max. |
30.1 mm |
| db min. |
27 mm |
| db max. |
30.1 mm |
| Da max. |
40 mm |
| Db max. |
40.6 mm |
| ra max. |
0.3 mm |
| rb max. |
0.2 mm |
| Basic dynamic load rating C |
6.37 kN |
| Basic static load rating C0 |
3.8 kN |
| Fatigue load limit Pu |
0.16 kN |
| Attainable speed for grease lubrication |
38000 r/min |
| Ball diameter Dw |
4.762 mm |
| Number of balls z |
18 |
| Preload class A GA |
40 N |
| Static axial stiffness, preload class A |
66 N/µm |
| Preload class B GB |
80 N |
| Static axial stiffness, preload class B |
86 N/µm |
| Preload class C GC |
160 N |
| Static axial stiffness, preload class C |
112 N/µm |
| Preload class D GD |
320 N |
| Static axial stiffness, preload class D |
149 N/µm |
| Calculation factor f |
1.07 |
| Calculation factor f1 |
0.98 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.07 |
| Calculation factor f2C |
1.12 |
| Calculation factor f2D |
1.17 |
| Calculation factor fHC |
1.04 |
| Calculation factor e |
0.68 |
| Calculation factor (single, tandem) Y2 |
0.87 |
| Calculation factor (back-to-back, face-to-face) Y1 |
0.92 |
| Calculation factor (back-to-back, face-to-face) Y2 |
1.41 |
| Mass bearing |
0.038 kg |