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31306
Metric Single Row Tapered Roller Bearings
Dimensions: Bore (Inner) Diameter: 30 mm； Outer Diameter: 72 mm； Width (Thickness): 20.75 mm;
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Product Attributes
| Product Number | 31306 |
| Bore diameter | 30 mm |
| Outside diameter | 72 mm |
| Total width | 20.75 mm |
| Shoulder diameter of inner ring | 52.7 mm |
| Widthof inner ring | 19 mm |
| Width of outer ring | 14 mm |
| Chamfer minimum dimension of inner ring (r1,2) | 1.5 mm |
| Chamfer minimum dimension of outer ring (r3,4) | 1.5 mm |
| Distance side face to pressure point (a) | 22 mm |
| Basic dynamic load rating (Cr) | 58.3 kn |
| Basic static load rating (Cor) | 50 kN |
| Fatigue load limit (Pu) | 5.7 kN |
| Reference speed | 7500 r/min |
| Limiting speed | 9500 r/min |
| Mass | 0.39 kg |
| Limiting value (e) | 0.83 |
| Axial load factor (Y) | 0.72 |
| Axial load factor (Y0) | 0.4 |
| Maximum diameter of shaft abutment (da) | 40 mm |
| Minimum diameter of shaft abutment (db) | 38.5 mm |
| Minimum diameter of housing abutment (Da) | 55 mm |
| Maximum diameter of housing abutment (Da) | 65 mm |
| Minimum diameter of housing abutment (Db) | 68 mm |
| Minimum width of space required in housing on large side face (C | 3 mm |
| Minimum width of space required in housing on small side face (C | 6.5 mm |
| Maximum Radius of shaft fillet (ra) | 1.5 mm |
| Maximum Radius of housing fillet (rb) | 1.5 mm |
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