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Technical Specification 
The HM212049/11 tapered roller bearing is engineered for superior performance in industrial and automotive environments. Manufactured from premium-grade steel with advanced grinding technology, this bearing offers high precision, excellent load capacity, and extended durability. Its separable cone and cup structure facilitates easy handling, inspection, and lubrication, reducing downtime. Widely used in trucks, trailers, construction machinery, and gear systems, this inch-series bearing meets global quality standards. DSBR’s expertise in manufacturing and rigorous inspection processes ensure consistent quality and value, making it the preferred choice for OEM suppliers and aftermarket buyers.
Technical Specification 
| Specifications | |
| Series | HM212000 |
| Cone Part Number | HM212049 |
| Cup Part Number | HM212011 |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
| Dimensions | |
| d - Bore | 2.6250 in 66.675 mm |
| D - Cup Outer Diameter | 4 13/16 in 122.238 mm |
| B - Cone Width | 1.5100 in 38.354 mm |
| C - Cup Width | 1.1700 in 29.718 mm |
| T - Bearing Width | 1.5000 in 38.100 mm |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius1 | 0.14 in 3.560 mm |
| r - Cup Backface "To Clear" Radius2 | 0.130 in 3.30 mm |
| da - Cone Frontface Backing Diameter | 2.97 in 75.5 mm |
| db - Cone Backface Backing Diameter | 3.23 in 82 mm |
| Da - Cup Frontface Backing Diameter | 4.60 in 116.10 mm |
| Db - Cup Backface Backing Diameter | 4.25 in 107.95 mm |
| Ab - Cage-Cone Frontface Clearance | 0.15 in 3.8 mm |
| Aa - Cage-Cone Backface Clearance | 0.07 in 1.8 mm |
| a - Effective Center Location3 | -0.43 in -10.9 mm |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 15600 lbf 69200 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 60000 lbf 267000 N |
| C0 - Static Radial Rating | 62700 lbf 279000 N |
| Ca90- Dynamic Thrust Rating (90 million revolutions)6 | 8990 lbf 40000 N |
| Factors | |
| K - Factor7 | 1.73 |
| e - ISO Factor8 | 0.34 |
| Y - ISO Factor9 | 1.78 |
| G1 - Heat Generation Factor (Roller-Raceway) | 92.2 |
| G2 - Heat Generation Factor (Rib-Roller End) | 18.1 |
| Cg - Geometry Factor10 | 0.0759 |
