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3030872/DB
Tapered roller bearings& single row& matched back-to-back
Dimensions: Bore (Inner) Diameter: 40 mm； Outer Diameter: 90 mm； Width (Thickness): 72 mm;
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Product Attributes
| Product Number | 3030872/DB |
| Bore diameter | 40 mm |
| Outside diameter | 90 mm |
| Total width | 72 mm |
| Shoulder diameter of inner ring | 62.5 mm |
| Width of outer ring | 61.5 mm |
| Chamfer minimum dimension of inner ring (r1,2) | 2 mm |
| Basic dynamic load rating (Cr) | 182 kn |
| Basic static load rating (Cor) | 190 kN |
| Fatigue load limit (Pu) | 21.6 kN |
| Reference speed | 5300 r/min |
| Limiting speed | 8000 r/min |
| Mass | 1.9 kg |
| Limiting value (e) | 0.35 |
| Axial load factor (Y0) | 1.8 |
| Minimum diameter of shaft abutment (db) | 49.5 mm |
| Minimum width of space required in housing on small side face (C | 5 mm |
| Width of spacer ring (l) | 21.5 |
| Width of lubrication groove (b) | 9 |
| Diameter of lubrication hole (K) | 6 |
| Chamfer minimum dimension of outer ring (r5) | 0.6 |
| Axial load factor (Y1) | 1.9 |
| Axial load factor (Y2) | 2.9 |
| Maximum Radius of housing fillet (ra) | 2 |
| Maximum Radius of shaft fillet (rc) | 0.6 |
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