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Technical Specification 
The 527/522 tapered roller bearing is a compact inch-series model suitable for light trucks, trailers, and industrial machinery. It offers efficient handling of radial and axial loads, ensuring long-lasting performance. Constructed from premium bearing steel and processed with advanced heat treatment, this bearing resists wear and fatigue under demanding conditions. Its precision-ground raceways reduce friction and enhance operational stability. With DSBR’s strict manufacturing standards, this bearing provides OEM-level performance and global market reliability, making it a preferred choice for distributors and end-users.
Technical Specification 
| Technical Specifications | |
| Type | Tapered Roller Bearing |
| Bore Type | Round |
| Material | Case Carburized Steel |
| Style | Cone & Cup |
| Precision Rating | Class 4 |
| Cone Number | 527 |
| Cup Number | 522 |
| Configuration | One |
| Lubrication | w/o Oil Hole |
| e (Axial Load Factor) | 0.29 |
| Y2 (Axial Load Factor) | 2.1 |
| Static Load Rating | 42000 lbf 187000 N 187.00 kN |
| Dynamic Load Rating | 33500 lbf 148000 N 148.00 kN |
| Enclosure | Open |
| Operating Temperature Range | -40 to 250 ºF -40 to 120 ºC |
| Dimensional Specifications | |
| B | 1.7500 in 44.450 mm |
| D | 4.0000 in 101.600 mm |
| Wo | 1.0625 in 26.988 mm |
| Wi | 1.4200 in 36.068 mm |
| W | 1.3750 in 34.925 mm |
| r | 0.1300 in 3.300 mm |
| R | 0.14 in 3.5 mm |
| a (Effective Load Center) | -0.5000 in -12.700 mm |
| U | 2.32 in 59.0 mm |
| V | 2.09 in 53.0 mm |
| X | 3.74 in 95.0 mm |
| Z | 3.50 in 89.0 mm |
