NACHI 250XRN33 Linear bearing
| Brand Name |
NACHI |
| Model Number |
250XRN33 |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NACHI 250XRN33 bearing Size Chart (mm/inches) |
|---|
| d | 55 mm |
| D | 80 mm |
| B | 13 mm |
| d1 | 62.7 mm |
| d2 | 62.7 mm |
| D1 | 72.3 mm |
| r1,2 min. | 1 mm |
| r3,4 min. | 0.3 mm |
| a | 22.4 mm |
| da min. | 59.6 mm |
| db min. | 59.6 mm |
| Da max. | 75.4 mm |
| Db max. | 78 mm |
| ra max. | 1 mm |
| rb max. | 0.3 mm |
| Basic dynamic load rating C | 18.2 kN |
| Basic static load rating C0 | 13.7 kN |
| Fatigue load limit Pu | 0.585 kN |
| Attainable speed for grease lubrication | 15000 r/min |
| Ball diameter Dw | 7.938 mm |
| Number of balls z | 23 |
| Reference grease quantity Gref | 2.49 cm³ |
| Preload class A GA | 120 N |
| Static axial stiffness, preload class A | 124 N/µm |
| Preload class B GB | 240 N |
| Static axial stiffness, preload class B | 161 N/µm |
| Preload class C GC | 480 N |
| Static axial stiffness, preload class C | 211 N/µm |
| Preload class D GD | 960 N |
| Static axial stiffness, preload class D | 282 N/µm |
| Calculation factor f | 1.15 |
| Calculation factor f1 | 0.98 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.04 |
| Calculation factor f2C | 1.08 |
| Calculation factor f2D | 1.14 |
| Calculation factor fHC | 1 |
| 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 | 0.18 kg |