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Technical Specification 
The DSBR 580/572 tapered roller bearing is ideal for demanding environments where strength and precision are paramount. Built with premium-grade steel and utilizing advanced manufacturing technology, this inch-series bearing delivers exceptional performance under heavy axial and radial loads. It is commonly found in commercial vehicles, construction equipment, and high-load gear systems. The bearing’s separable cone and cup design simplify installation and maintenance, while DSBR’s ISO-certified facilities guarantee dimensional accuracy and high-quality finishing. This combination of durability, affordability, and precision makes it a preferred choice for distributors and OEM customers worldwide.
Technical Specification 
| Specifications | |
| Series | 575 |
| Cone Part Number | 580 |
| Cup Part Number | 572 |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
| Related Assembly Number(s) | 580-90053 580-90054 580-902B2 580-902B3 580-902B4 580-902C2 580-90406 580-906B1 KIT394818-90000 |
| Dimensions | |
| d - Bore | 3 1/4 in 82.550 mm |
| D - Cup Outer Diameter | 5.5115 in 139.992 mm |
| B - Cone Width | 1.4212 in 36.098 mm |
| C - Cup Width | 1.1250 in 28.575 mm |
| T - Bearing Width | 1.4375 in 36.513 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 | 3.58 in 91 mm |
| db - Cone Backface Backing Diameter | 3.86 in 98 mm |
| Da - Cup Frontface Backing Diameter | 5.25 in 133.35 mm |
| Db - Cup Backface Backing Diameter | 4.92 in 124.97 mm |
| Ab - Cage-Cone Frontface Clearance | 0.1 in 2.5 mm |
| Aa - Cage-Cone Backface Clearance | 0.12 in 3 mm |
| a - Effective Center Location3 | -0.21 in -5.3 mm |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 12100 lbf 53600 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 46500 lbf 207000 N |
| C0 - Static Radial Rating | 65400 lbf 291000 N |
| Ca90- Dynamic Thrust Rating (90 million revolutions)6 | 8330 lbf 37100 N |
| Factors | |
| K - Factor7 | 1.45 |
| e - ISO Factor8 | 0.4 |
| Y - ISO Factor9 | 1.49 |
| G1 - Heat Generation Factor (Roller-Raceway) | 126 |
| G2 - Heat Generation Factor (Rib-Roller End) | 32 |
| Cg - Geometry Factor10 | 0.13 |
