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387 A/382 S
Inch Single Row Tapered Roller Bearings
Dimensions: Bore (Inner) Diameter: 2.2500 "； Outer Diameter: 3.8125 "； Width (Thickness): 1.0000 ";
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Product Attributes
| Product Number | 387 A/382 S |
| Bore diameter | 2.2500 " |
| Outside diameter | 3.8125 " |
| Total width | 1.0000 " |
| Shoulder diameter of inner ring | 2.9213 " |
| Widthof inner ring | 0.8640 " |
| Width of outer ring | 0.7982 " |
| Chamfer minimum dimension of inner ring (r1,2) | 3.5 mm |
| Chamfer minimum dimension of outer ring (r3,4) | 2.3 |
| Distance side face to pressure point (a) | 21 |
| Basic dynamic load rating (Cr) | 99.9 |
| Basic static load rating (Cor) | 102 |
| Fatigue load limit (Pu) | 11.6 |
| Reference speed | 5600 r/min |
| Limiting speed | 6700 r/min |
| Mass | 0.65 kg |
| Limiting value (e) | 0.35 |
| Axial load factor (Y) | 1.7 |
| Axial load factor (Y0) | 0.9 |
| Maximum diameter of shaft abutment (da) | 65 mm |
| Minimum diameter of shaft abutment (db) | 70 mm |
| Minimum diameter of housing abutment (Da) | 85 mm |
| Maximum diameter of housing abutment (Da) | 87 mm |
| Minimum diameter of housing abutment (Db) | 91 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 | 5 mm |
| Maximum Radius of shaft fillet (ra) | 3.5 mm |
| Maximum Radius of housing fillet (rb) | 2.3 mm |
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