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18690/18620
Inch Single Row Tapered Roller Bearings
Dimensions: Bore (Inner) Diameter: 1.8125 "； Outer Diameter: 3.1250 "； Width (Thickness): 0.6875 ";
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Product Attributes
| Product Number | 18690/18620 |
| Bore diameter | 1.8125 " |
| Outside diameter | 3.1250 " |
| Total width | 0.6875 " |
| Shoulder diameter of inner ring | 2.3701 " |
| Widthof inner ring | 0.6875 " |
| Width of outer ring | 0.5313 " |
| Chamfer minimum dimension of inner ring (r1,2) | 2.8 mm |
| Chamfer minimum dimension of outer ring (r3,4) | 1.5 |
| Distance side face to pressure point (a) | 14 |
| Basic dynamic load rating (Cr) | 61.1 |
| Basic static load rating (Cor) | 62 |
| Fatigue load limit (Pu) | 6.8 |
| Reference speed | 7000 r/min |
| Limiting speed | 8500 r/min |
| Mass | 0.33 kg |
| Limiting value (e) | 0.37 |
| Axial load factor (Y) | 1.6 |
| Axial load factor (Y0) | 0.9 |
| Maximum diameter of shaft abutment (da) | 53 mm |
| Minimum diameter of shaft abutment (db) | 57 mm |
| Minimum diameter of housing abutment (Da) | 69 mm |
| Maximum diameter of housing abutment (Da) | 71 mm |
| Minimum diameter of housing abutment (Db) | 73 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 | 3.5 mm |
| Maximum Radius of shaft fillet (ra) | 2.8 mm |
| Maximum Radius of housing fillet (rb) | 1.5 mm |
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