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Technical Specification 
The DSBR JL819349/JL819310 tapered roller bearing is ideal for heavy-duty vehicles and high-load industrial equipment. Engineered with high-quality bearing steel, advanced grinding processes, and optimized internal geometry, it ensures excellent load distribution, reduced vibration, and extended life cycle. This inch-series bearing is easy to install and maintain, making it a preferred choice for global distributors. With DSBR’s extensive manufacturing capabilities and strict ISO quality control, customers receive bearings that meet OEM standards while offering cost-effective aftermarket solutions.
Technical Specification 
| Technical Specifications | |
| Type | Tapered Roller Bearing |
| Bore Type | Round |
| Material | Case Carburized Steel |
| Style | Cone & Cup |
| Precision Rating | Class 4 |
| Cone Number | JL819349 |
| Cup Number | JL819310 |
| Configuration | One |
| Lubrication | w/o Oil Hole |
| Enclosure | Open |
| Operating Temperature Range | -40 to 250 °F -40 to 120 °C |
| Dimensional Specifications | |
| B | 3.7402 in 95.000 mm |
| D | 5.3150 in 135.000 mm |
| Wo | 0.5512 in 14.000 mm |
| Wi | 0.7874 in 20.000 mm |
| W | 0.7874 in 20.000 mm |
| r | 0.1000 in 2.500 mm |
| R | 0.20 in 5.0 mm |
