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30311/DF
Tapered roller bearings& single row& matched face-to-face
Dimensions: Bore (Inner) Diameter: 55 mm； Outer Diameter: 120 mm； Width (Thickness): ;
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Product Attributes
| Product Number | 30311/DF |
| Bore diameter | 55 mm |
| Outside diameter | 120 mm |
| Shoulder diameter of inner ring | 63 mm |
| Widthof inner ring | 58 mm |
| Chamfer minimum dimension of outer ring (r3,4) | 0.6 mm |
| Basic dynamic load rating (Cr) | 302 kn |
| Basic static load rating (Cor) | 325 kN |
| Fatigue load limit (Pu) | 39 kN |
| Reference speed | 3800 r/min |
| Limiting speed | 5600 r/min |
| Mass | 3.25 kg |
| Limiting value (e) | 0.35 |
| Axial load factor (Y) | 1.9 |
| Axial load factor (Y0) | 2.9 |
| Maximum diameter of shaft abutment (da) | 72 mm |
| Minimum diameter of housing abutment (Da) | 104 mm |
| Maximum diameter of housing abutment (Da) | 110 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) | 2 mm |
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