Inner cup for Lorain LRT-275D

The inner cup, part number 23817, functions as the outer race of a tapered roller bearing. Within the bearing assembly, this component provides the essential raceway for the tapered rollers to travel against, allowing the bearing to support both radial and axial loads simultaneously. It is designed to work in conjunction with a matching cone, which houses the rollers and cage, to facilitate rotation with minimal friction in the machine's drivetrain or wheel hubs.

This component is specifically engineered for use in the Lorain LRT-275D rough-terrain crane. By maintaining the precise geometry required for the rollers, it ensures the efficient transmission of loads across the crane's rotating assemblies. Tapered roller bearings are common in heavy machinery applications such as wheel hubs, steering pivots, and transmission systems where managing combined load forces is necessary for operational stability.

In a tapered roller bearing, the outer race or cup is responsible for containing the rollers and distributing the load across the raceway surface. Proper alignment and seating of this cup within the housing are necessary to ensure the bearing operates within its intended tolerances, preventing premature wear or mechanical failure of the rotating assembly.