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Technical Specification 
The JLM104948/JLM104910 tapered roller bearing is a high-performance inch-series bearing widely used in automotive wheel hubs, trailers, and machinery. It supports heavy combined axial and radial loads, ensuring reliable operation under demanding conditions. Built with premium steel and advanced heat treatment technology, it resists wear and fatigue, extending service life. Its separable cone and cup structure simplify installation, inspection, and maintenance. With DSBR’s precision manufacturing and strict quality control, this model guarantees dependable performance and global compatibility for OEM and aftermarket customers.
Technical Specification 
| Technical Specifications | |
| Type | Tapered Roller Bearing |
| Bore Type | Round |
| Material | Case Carburized Steel |
| Style | Cone & Cup |
| Precision Rating | Class N |
| Cone Number | JLM104948 |
| Cup Number | JLM104910 |
| Configuration | One |
| Lubrication | w/o Oil Hole |
| e (Axial Load Factor) | 0.31 |
| Y2 (Axial Load Factor) | 1.97 |
| Static Load Rating | 21100 lbf 94000 N 94.00 kN |
| Dynamic Load Rating | 15600 lbf 69500 N 69.50 kN |
| Enclosure | Open |
| Operating Temperature Range | -40 to 250 ºF -40 to 120 ºC |
| Dimensional Specifications | |
| B | 1.9685 in 50.000 mm |
| D | 3.2283 in 82.000 mm |
| Wo | 0.6693 in 17.000 mm |
| Wi | 0.8465 in 21.500 mm |
| W | 0.8465 in 21.500 mm |
| r | 0.0200 in 0.500 mm |
| R | 0.12 in 3.0 mm |
| a (Effective Load Center) | -0.2100 in -5.300 mm |
| U | 2.36 in 60.0 mm |
| V | 2.17 in 55.0 mm |
| X | 3.07 in 78.0 mm |
| Z | 2.99 in 76.0 mm |
