Welcome to Linqing Xinshengdi Bearing Co., Ltd.
LM48548/10/500LA Sealed Tapered Roller Bearing
- Integrated Dust/Water Defense: The built-in 500LA seal eliminates the need for separate hub seals, cutting installation time and preventing marine/agricultural contamination.
- Combined Load Mastery: The tapered geometry flawlessly manages simultaneous radial payloads and heavy axial (cornering) thrust forces.
- Boutique Assembly Check: Every sealed cone is physically inspected in our residential-scale facility to ensure the seal lip is perfectly intact and properly seated.
- High-Impact Durability: Forged from premium chrome steel to absorb the harsh shocks of off-road trailer towing.
Product Specifications
| Specification | Details |
| Item Type | Tapered Roller Bearing Set (Inch Size) |
| Model Number | LM48548/10/500LA |
| Bearing Design | Single Row Tapered (Cone + Cup) |
| Seal Type | Integrated Elastomeric Lip Seal on Cone |
| Material | GCr15 / SAE 52100 Bearing Steel |
| Cage Material | Stamped Steel |
Product Introduction
The LM48548/10/500LA is a highly specialized, heavy-duty tapered roller bearing set that features an integrated elastomeric seal (denoted by the /500LA suffix). This specific inch-size combination is an absolute necessity for light truck axles, boat trailers, and agricultural hubs operating in heavily contaminated environments. The integrated seal drastically reduces the complexity of hub assembly by eliminating the need for a separate pressed-in grease seal. Mounting a rubber seal directly onto the cone of a tapered bearing requires exacting tolerances to prevent friction burn-up. We do not trust automated assembly lines with this delicate balance. In our Yandian Town workshop, our technicians manually test the drag coefficient of the integrated seal on every single unit. This piece-by-piece manual validation guarantees your clients receive a bearing that perfectly locks out submerged water and abrasive field dust.
Applications
Marine boat trailer wheel hubs (highly resistant to submerged water).
Agricultural tractor implements and towed equipment.
Light-duty commercial truck axles.
Equivalent Models
Set 5 (often refers to standard unsealed LM48548/10, ensure seal requirement is noted).
Cross Reference
Timken: LM48548-500LA / LM48510
SKF: BR5 (Standard, verify seal)
FAQ
Q: Do I still need to pack this bearing with grease if it has a seal?
A: Yes! The integrated seal is there to keep grease in and dirt out, but the roller assembly itself must still be thoroughly hand-packed with high-quality wheel bearing grease before installation.
Q: Can I use a standard LM48510 cup with this sealed cone?
A: Yes, the LM48510 is the standard matching outer cup for the LM48548 cone series, regardless of the integrated seal on the cone.
OEM & Custom Service
dbsbearing.com provides tailored B2B solutions for axle manufacturers, including supplying the LM48548/10/500LA with customized seal materials (like Viton for higher heat resistance) and custom laser-etched OEM branding on the outer cup.
Packing & Delivery
Bearings are heavily coated in anti-rust oil to protect the bare steel and the delicate rubber seal, then packaged in individual sealed bags. We utilize heavy-duty export cartoning to protect these critical trailer components from maritime humidity during bulk shipments.
