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Technical Specification .webp "15250X Inch Tapered Roller Bearings")
The 15123/15250X tapered roller bearing is specifically designed to provide excellent load-carrying performance in both radial and axial directions. Made from top-grade bearing steel and processed with advanced heat treatment, it ensures long-term durability and reliability. Its inch-series sizing makes it suitable for automotive wheel hubs, gear systems, and industrial drive applications. The bearing’s optimized roller alignment reduces friction and wear, contributing to smoother operation and improved efficiency. The separable cone and cup components make servicing and inspection straightforward. As a global supplier, DSBR ensures this bearing meets international standards, providing stable supply and superior performance.
Technical Specification 
| Specifications | |
| Series | 15000 |
| Cone Part Number | 15123 |
| Cup Part Number | 15250X |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
| Dimensions | |
| d - Bore | 1 1/4 in 31.75 mm |
| D - Cup Outer Diameter | 2.5000 in 63.500 mm |
| B - Cone Width | 0.7500 in 19.050 mm |
| C - Cup Width | 0.6250 in 15.875 mm |
| T - Bearing Width | 0.7775 in 19.749 mm |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius1 | 0.14 in 3.600 mm |
| r - Cup Backface "To Clear" Radius2 | 0.06 in 1.52 mm |
| da - Cone Frontface Backing Diameter | 1.52 in 38.5 mm |
| db - Cone Backface Backing Diameter | 1.79 in 45.5 mm |
| Da - Cup Frontface Backing Diameter | 2.34 in 59.44 mm |
| Db - Cup Backface Backing Diameter | 2.17 in 55.12 mm |
| Ab - Cage-Cone Frontface Clearance | 0.1 in 2.5 mm |
| Aa - Cage-Cone Backface Clearance | -0.01 in -0.3 mm |
| a - Effective Center Location3 | -0.19 in -4.8 mm |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 3490 lbf 15500 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 13500 lbf 59900 N |
| C0 - Static Radial Rating | 12100 lbf 53900 N |
| Ca90聽- Dynamic Thrust Rating (90 million revolutions)6 | 2090 lbf 9310 N |
| Factors | |
| K - Factor7 | 1.67 |
| e - ISO Factor8 | 0.35 |
| Y - ISO Factor9 | 1.71 |
| G1 - Heat Generation Factor (Roller-Raceway) | 14.6 |
| G2 - Heat Generation Factor (Rib-Roller End) | 10 |
| Cg - Geometry Factor10 | 0.0606 |
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