 ISO NJ1921 cylindrical roller bearings
  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
  Detailed  Parameters
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  parameter:
                                        
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