NTN NK-30/20R JAPAN NTN Bearing 32 42 30
| Brand Name |
NTN |
| Model Number |
NK-30/20R |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NTN NK-30/20R bearing Size Chart (mm/inches) |
|---|
| d | 8 mm |
| D | 22 mm |
| B | 7 mm |
| d1 | 12.1 mm |
| d2 | 11.5 mm |
| D1 | 17.9 mm |
| K | 0.5 mm |
| C1 | 4.25 mm |
| r1,2 min. | 0.3 mm |
| r3,4 min. | 0.15 mm |
| a | 5.6 mm |
| da min. | 10 mm |
| db min. | 10 mm |
| Da max. | 20 mm |
| Db max. | 20.6 mm |
| ra max. | 0.3 mm |
| rb max. | 0.15 mm |
| dn | 13.3 mm |
| Basic dynamic load rating C | 2.34 kN |
| Basic static load rating C0 | 0.8 kN |
| Fatigue load limit Pu | 0.034 kN |
| Attainable speed for grease lubrication | 130000 r/min |
| Attainable speed for oil-air lubrication | 200000 r/min |
| Ball diameter Dw | 3.969 mm |
| Number of balls z | 8 |
| Reference grease quantity Gref | 0.17 cm³ |
| Preload class A GA | 15 N |
| Static axial stiffness, preload class A | 11 N/µm |
| Preload class B GB | 35 N |
| Static axial stiffness, preload class B | 16 N/µm |
| Preload class C GC | 75 N |
| Static axial stiffness, preload class C | 22 N/µm |
| Calculation factor f | 1.02 |
| 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 | 6.6 |
| Mass bearing | 0.011 kg |