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Technical Specification 
The LM300849/11 tapered roller bearing is specially designed for trucks, trailers, and heavy machinery. It offers superior support for combined radial and axial loads in harsh operating conditions. Constructed from premium steel and manufactured with DSBR’s advanced machining technology, it ensures exceptional durability and long service life. Its inch-series structure provides wide compatibility for OEMs, while the separable components allow for convenient installation and maintenance. Rigorously tested for quality, this bearing guarantees reliable performance, making it a cost-effective solution for industrial and automotive sectors worldwide.
Technical Specification 
| Specifications | |
| Series | LM300800 |
| Cone Part Number | LM300849 |
| Cup Part Number | LM300811 |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
| Related Assembly Number(s) | LM300849-90497 LM300849-9X104 |
| Dimensions | |
| d - Bore | 1.6137 in 40.988 mm |
| D - Cup Outer Diameter | 2.6762 in 67.975 mm |
| B - Cone Width | 0.7087 in 18.001 mm |
| C - Cup Width | 0.5315 in 13.500 mm |
| T - Bearing Width | 0.6890 in 17.501 mm |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius1 | 0.14 in 3.560 mm |
| r - Cup Backface "To Clear" Radius2 | 0.06 in 1.52 mm |
| da - Cone Frontface Backing Diameter | 1.79 in 45.5 mm |
| db - Cone Backface Backing Diameter | 2.05 in 52 mm |
| Da - Cup Frontface Backing Diameter | 2.60 in 66.00 mm |
| Db - Cup Backface Backing Diameter | 2.40 in 60.96 mm |
| Ab - Cage-Cone Frontface Clearance | 0.08 in 2 mm |
| Aa - Cage-Cone Backface Clearance | 0.01 in 0.3 mm |
| a - Effective Center Location3 | -0.14 in -3.6 mm |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 3440 lbf 15300 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 13300 lbf 59100 N |
| C0 - Static Radial Rating | 14300 lbf 63500 N |
| Ca90- Dynamic Thrust Rating (90 million revolutions)6 | 2050 lbf 9140 N |
| Factors | |
| K - Factor7 | 1.68 |
| e - ISO Factor8 | 0.35 |
| Y - ISO Factor9 | 1.72 |
| G1 - Heat Generation Factor (Roller-Raceway) | 22.5 |
| G2 - Heat Generation Factor (Rib-Roller End) | 18.1 |
| Cg - Geometry Factor10 | 0.0698 |
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