900 mm x 1 180 mm x 206 mm NTN 239/900K Spherical Roller Bearings
| Brand Name |
NTN |
| Model Number |
239/900K |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NTN 239/900K bearing Size Chart (mm/inches) |
|---|
| d | 70 mm |
| D | 110 mm |
| B | 20 mm |
| d1 | 82.3 mm |
| d2 | 82.3 mm |
| D1 | 97.7 mm |
| r1,2 min. | 1.1 mm |
| r3,4 min. | 0.6 mm |
| a | 22.1 mm |
| da min. | 76 mm |
| db min. | 76 mm |
| Da max. | 104 mm |
| Db max. | 106 mm |
| ra max. | 1 mm |
| rb max. | 0.6 mm |
| Basic dynamic load rating C | 52 kN |
| Basic static load rating C0 | 45.5 kN |
| Fatigue load limit Pu | 1.93 kN |
| Attainable speed for grease lubrication | 12000 r/min |
| Ball diameter Dw | 12.7 mm |
| Number of balls z | 19 |
| Reference grease quantity Gref | 8.1 cm³ |
| Preload class A GA | 200 N |
| Static axial stiffness, preload class A | 81 N/µm |
| Preload class B GB | 400 N |
| Static axial stiffness, preload class B | 111 N/µm |
| Preload class C GC | 800 N |
| Static axial stiffness, preload class C | 156 N/µm |
| Preload class D GD | 1600 N |
| Static axial stiffness, preload class D | 227 N/µm |
| Calculation factor f | 1.12 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor f2D | 1.09 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 15.5 |
| Mass bearing | 0.59 kg |