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31309/DF
Tapered roller bearings& single row& matched face-to-face
Dimensions: Bore (Inner) Diameter: 45 mm； Outer Diameter: 100 mm； Width (Thickness): ;
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Product Attributes
| Product Number | 31309/DF |
| Bore diameter | 45 mm |
| Outside diameter | 100 mm |
| Shoulder diameter of inner ring | 54.5 mm |
| Widthof inner ring | 50 mm |
| Chamfer minimum dimension of outer ring (r3,4) | 0.6 mm |
| Basic dynamic load rating (Cr) | 194 kn |
| Basic static load rating (Cor) | 204 kN |
| Fatigue load limit (Pu) | 24.5 kN |
| Reference speed | 4000 r/min |
| Limiting speed | 6700 r/min |
| Mass | 2 kg |
| Limiting value (e) | 0.83 |
| Axial load factor (Y) | 0.81 |
| Axial load factor (Y0) | 1.2 |
| Maximum diameter of shaft abutment (da) | 57 mm |
| Minimum diameter of housing abutment (Da) | 79 mm |
| Maximum diameter of housing abutment (Da) | 92 mm |
| Minimum width of space required in housing on large side face (C | 4 mm |
| Maximum Radius of shaft fillet (ra) | 0.6 mm |
| Maximum Radius of housing fillet (rb) | 1.5 mm |
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