ISO NJ1921 cylindrical roller bearings
High Quality ISO NJ1921 cylindrical roller bearings. Competitive Pricing. 4,762 Bore Diameter (mm) Accept Small Order. Easy and Fast Shipping. 4.762×1.397×1.984 Size (mm)
| Size (mm) | 4.762×1.397×1.984 |
| Bore Diameter (mm) | 4,762 |
| Outer Diameter (mm) | 1,397 |
| Width (mm) | 1,984 |
| d | 1.397 mm |
| D | 4.762 mm |
| B | 1.984 mm |
| d1 | 2.33 mm |
| D1 | 3.8 mm |
| r1,2 – min. | 0.1 mm |
| da – min. | 2.2 mm |
| Da – max. | 3.9 mm |
| ra – max. | 0.1 mm |
| Basic dynamic load rating – C | 0.133 kN |
| Basic static load rating – C0 | 0.034 kN |
| Fatigue load limit – Pu | 0.001 kN |
| Reference speed | 200000 r/min |
| Limiting speed | 130000 r/min |
| Calculation factor – kr | 0.03 |
| Calculation factor – f0 | 5.7 |
| d1 ≈ | 2.33 mm |
| D1 ≈ | 3.8 mm |
| r1,2 min. | 0.1 mm |
| da min. | 2 mm |
| Da max. | 3.9 mm |
| ra max. | 0.1 mm |
| Basic dynamic load rating C | 0.133 kN |
| Basic static load rating C0 | 0.034 kN |
| Fatigue load limit Pu | 0.001 kN |
| Calculation factor kr | 0.03 |
| Calculation factor f0 | 5.7 |
| Mass bearing | 0.0002 kg |
Detailed Parameters
parameter：
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