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Technical Specification 
The DSBR 39590/39520 tapered roller bearing is a high-performance inch-series bearing designed for heavy-duty industrial and automotive applications. Manufactured with premium steel and advanced precision grinding, it offers exceptional strength, durability, and load-bearing capacity. The cone and cup components are separable, allowing easy installation and simplified maintenance, which helps reduce downtime. Ideal for trucks, trailers, agricultural machinery, and gear systems, this bearing meets rigorous international standards for OEM and aftermarket applications. DSBR’s state-of-the-art manufacturing facilities ensure consistent quality and reliability, making this bearing a cost-effective choice for global distributors and industrial buyers.
Technical Specification 
| Specifications | |
| Series | 39500 |
| Cone Part Number | 39590 |
| Cup Part Number | 39520 |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
| Related Assembly Number(s) | 39590-90408 39590SL-902A1 |
| Dimensions | |
| d - Bore | 2.6250 in 66.675 mm |
| D - Cup Outer Diameter | 4-7/16 in 112.713 mm |
| B - Cone Width | 1.1875 in 30.163 mm |
| C - Cup Width | 0.9375 in 23.813 mm |
| T - Bearing Width | 1.1875 in 30.163 mm |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius1 | 0.14 in 3.600 mm |
| r - Cup Backface "To Clear" Radius2 | 0.130 in 3.30 mm |
| da - Cone Frontface Backing Diameter | 2.95 in 75 mm |
| db - Cone Backface Backing Diameter | 3.23 in 82 mm |
| Da - Cup Frontface Backing Diameter | 4.25 in 107.95 mm |
| Db - Cup Backface Backing Diameter | 3.98 in 101.09 mm |
| Ab - Cage-Cone Frontface Clearance | 0.13 in 3.3 mm |
| Aa - Cage-Cone Backface Clearance | 0.05 in 1.3 mm |
| a - Effective Center Location3 | -0.26 in -6.6 mm |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 9730 lbf 43300 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 37500 lbf 167000 N |
| C0 - Static Radial Rating | 50300 lbf 224000 N |
| Ca90- Dynamic Thrust Rating (90 million revolutions)6 | 5650 lbf 25100 N |
| Factors | |
| K - Factor7 | 1.72 |
| e - ISO Factor8 | 0.34 |
| Y - ISO Factor9 | 1.77 |
| G1 - Heat Generation Factor (Roller-Raceway) | 84.3 |
| G2 - Heat Generation Factor (Rib-Roller End) | 23.7 |
| Cg - Geometry Factor10 | 0.107 |
