KOYO RNA4903 needle roller bearings
Our highly-skilled and factory-trained service experts have the resources to help you with all your KOYO RNA4903 needle roller bearings needs - including routine maintenance, AURORA Bearing Supply Co., Ltd. major repairs, warranty service, and 165x120x22 bearing equipment 15 mm Fw inspections.
What is RNA4903 bearing cross reference？
| Brand Name: | KOYO |
| Model Number: | RNA4903 |
| B: | 28 mm |
| D1 ≈: | 77.8 mm |
| d2 ≈: | 52.4 mm |
| d: | 45 mm |
| K: | 3 mm |
| r1,2 min.: | 1.1 mm |
| D: | 85 mm |
| Recommended lock nut tightening angle α: | 130 ° |
| PDF |
RNA4903 |
Product Details
| B | 28 mm |
| D1 ≈ | 77.8 mm |
| d2 ≈ | 52.4 mm |
| d | 45 mm |
| K | 3 mm |
| r1,2 min. | 1.1 mm |
| D | 85 mm |
| Recommended lock nut tightening angle α | 130 ° |
| Calculation factor e | 0.26 |
| Fatigue load limit Pu | 10.8 kN |
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