LM716449/LM716412 Heavy Tapered Roller Bearing Set

Massive Load Density: The large envelope houses oversized rolling elements, dramatically increasing both static and dynamic load ratings for heavy payloads. Uncompromising Structural Rigidity: Heavy-walled forged cups prevent the bearing cavity from warping under extreme braking and towing stress. Manual Assembly Quality: Every set passes through strict manual physical inspection in our Yandian Town workshop to guarantee zero edge-loading defects on the rollers. Optimized Heat Dissipation: Internal geometry allows for optimal oil/grease flow, pulling heat away from the rolling elements during heavy commercial operation.

Product Specifications

Specification	Details
Item Type	Heavy-Duty Tapered Roller Bearing Set
Model Number	LM716449 / LM716412
Bearing Design	Single Row Tapered (Separable Cone + Cup)
Material	Premium GCr15 / SAE 52100 Steel
Cage Material	Heavy-Gauge Stamped Steel
Lubrication	Open (Requires Manual Lubrication)

Product IntroductionThe LM716449/LM716412 is a large, heavy-duty inch-size tapered roller bearing engineered to handle colossal loads in commercial transport and heavy industry. Featuring a massive 82.55mm inner bore and thick 140mm outer diameter, this bearing is the backbone for commercial truck axles, heavy planetary gearboxes, and industrial crushing equipment. Because a failure in a commercial vehicle under payload is catastrophic, we enforce uncompromising quality control. Within our dedicated assembly space, our technicians manually inspect the stamped steel cage alignment and verify the micro-finish of the heavy rollers. We reject the bulk-testing methods of massive factories. This hands-on validation at Linqing Xinshengdi ensures your B2B clients receive a bearing capable of surviving massive torque, rugged trails, and extreme highway mileage.

Applications

Wheel hubs and differentials on heavy commercial trucks and semi-trailers.
Primary rotary tables in oil and gas drilling rigs.
Heavy-duty industrial speed reducers and rock crushers.

Equivalent Models

Matched Timken Inch Series Designation

Cross Reference

Timken: LM716449-LM716412
SKF: LM 716449/412

FAQ

Q: Why does the bearing have "LM" in the part number?
A: "LM" stands for Light Medium series in the ABMA inch-dimension numbering system. Despite the "Light" name, in dimensions this large, it boasts massive load capacity.
Q: Should I apply anti-seize compound to the cup before pressing it into the hub?
A: No. A very light coat of machine oil can aid pressing, but thick anti-seize or grease on the outer diameter can cause the cup to spin inside the hub housing under heavy load.

OEM & Custom Service

We provide comprehensive supply chain support for this high-value, heavy-duty SKU via dbsbearing.com. We can accommodate custom requests for case-carburized steel variants for extreme shock load applications in mining environments.

Packing & Delivery

Due to its significant weight, the LM716449/12 is treated with premium rust inhibitors and packaged in heavy-weight corrugated boxes or individual wooden crates. We coordinate direct export logistics to supply commercial vehicle repair networks globally.