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72212/72487
Inch Single Row Tapered Roller Bearings
Dimensions: Bore (Inner) Diameter: 2.1250 "； Outer Diameter: 4.8750 "； Width (Thickness): 1.4375 ";
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Product Attributes
| Product Number | 72212/72487 |
| Bore diameter | 2.1250 " |
| Outside diameter | 4.8750 " |
| Total width | 1.4375 " |
| Shoulder diameter of inner ring | 3.5118 " |
| Widthof inner ring | 1.2910 " |
| Width of outer ring | 1.0000 " |
| Chamfer minimum dimension of inner ring (r1,2) | 3.5 mm |
| Chamfer minimum dimension of outer ring (r3,4) | 3.3 |
| Distance side face to pressure point (a) | 36 |
| Basic dynamic load rating (Cr) | 174 |
| Basic static load rating (Cor) | 160 |
| Fatigue load limit (Pu) | 19.6 |
| Reference speed | 4300 r/min |
| Limiting speed | 5600 r/min |
| Mass | 2 kg |
| Limiting value (e) | 0.75 |
| Axial load factor (Y) | 0.8 |
| Axial load factor (Y0) | 0.45 |
| Maximum diameter of shaft abutment (da) | 67 mm |
| Minimum diameter of shaft abutment (db) | 68 mm |
| Minimum diameter of housing abutment (Da) | 93 mm |
| Maximum diameter of housing abutment (Da) | 112 mm |
| Minimum diameter of housing abutment (Db) | 114 mm |
| Minimum width of space required in housing on large side face (C | 4 mm |
| Minimum width of space required in housing on small side face (C | 11 mm |
| Maximum Radius of shaft fillet (ra) | 3.5 mm |
| Maximum Radius of housing fillet (rb) | 3.3 mm |
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