40 mm x 62 mm x 12 mm NTN 7908 angular contact ball bearings
| Brand Name |
NTN |
| Model Number |
7908 |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NTN 7908 bearing Size Chart (mm/inches) |
|---|
| Bearing number | 7017 CB/P4A |
| Size (mm) | 130x85x22 |
| Bore Diameter (mm) | 130 |
| Outer Diameter (mm) | 85 |
| Width (mm) | 22 |
| d | 85 mm |
| D | 130 mm |
| B | 22 mm |
| d1 | 101.7 mm |
| d2 | 99.3 mm |
| D2 | 116.4 mm |
| r1,2 - min. | 1.1 mm |
| r3,4 - min. | 0.6 mm |
| a | 25.5 mm |
| da - min. | 91 mm |
| db - min. | 91 mm |
| Da - max. | 124 mm |
| Db - max. | 126.8 mm |
| ra - max. | 1 mm |
| rb - max. | 0.6 mm |
| dn | 103 mm |
| Basic dynamic load rating - C | 27 kN |
| Basic static load rating - C0 | 23.6 kN |
| Fatigue load limit - Pu | 0.965 kN |
| Limiting speed for grease lubrication | 13000 r/min |
| Limiting speed for oil lubrication | 20000 mm/min |
| Ball - Dw | 9.525 mm |
| Ball - z | 28 |
| Gref | 11.02 cm3 |
| Calculation factor - f0 | 9.6 |
| Preload class A - GA | 80 N |
| Preload class B - GB | 160 N |
| Preload class C - GC | 480 N |
| Calculation factor - f | 1.08 |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.02 |
| Calculation factor - f2C | 1.05 |
| Calculation factor - fHC | 1 |
| Preload class A | 54 N/micron |
| Preload class B | 71 N/micron |
| Preload class C | 112 N/micron |
| d1 | 101.7 mm |
| d2 | 99.3 mm |
| D2 | 116.4 mm |
| r1,2 min. | 1.1 mm |
| r3,4 min. | 0.6 mm |
| da min. | 91 mm |
| db min. | 91 mm |
| Da max. | 124 mm |
| Db max. | 126.8 mm |
| ra max. | 1 mm |
| rb max. | 0.6 mm |
| dn | 103 mm |
| Basic dynamic load rating C | 31.9 kN |
| Basic static load rating C0 | 36 kN |
| Fatigue load limit Pu | 0.965 kN |
| Attainable speed for grease lubrication | 13000 r/min |
| Attainable speed for oil-air lubrication | 20000 r/min |
| Ball diameter Dw | 9.525 mm |
| Number of balls z | 28 |
| Reference grease quantity Gref | 11.02 cm³ |
| Preload class A GA | 80 N |
| Static axial stiffness, preload class A | 54 N/µm |
| Preload class B GB | 160 N |
| Static axial stiffness, preload class B | 71 N/µm |
| Preload class C GC | 480 N |
| Static axial stiffness, preload class C | 112 N/µm |
| Calculation factor f | 1.08 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 9.6 |
| Mass bearing | 0.96 kg |