Thomson Industries PR500 Steel Internal Retaining Ring

Product Description

The THOMSON INDUSTRIES PR500 is a steel internal push-in retaining ring designed to secure components within a bore and retain linear bearing assemblies in place. This ring seats inside a housing bore, holding the bearing or mating component against axial movement without the need for threaded fasteners or adhesives. With an inside diameter of 0.875 inches and a push-in style design, the PR500 installs quickly and provides a reliable, low-profile retention method. It is typically installed by mechanical maintenance technicians, millwrights, or linear motion system integrators working on linear actuator and bearing assemblies.

The PR500 is suited for use with THOMSON SUPER-8 linear bearing systems as a retention component inside the bearing housing. Internal retaining rings of this style are common in light-duty to medium-duty linear motion applications found in industrial machinery, automation equipment, and positioning systems. The push-in installation style makes this ring appropriate for applications where toolless or minimal-tool assembly is required and where bore space is limited.

Key Features

• Push-in internal style seats directly inside a bore for fast, toolless installation
• Inside diameter of 0.875 inches for precise fitment in compatible SUPER-8 linear bearing housings
• Steel construction provides reliable retention strength in industrial environments
• Low-profile design does not protrude beyond the housing face
• Lightweight at 0.001 pounds, adding negligible mass to the assembly

Compatibility

Specified for use with THOMSON SUPER-8 linear bearing assemblies requiring an internal push-in retaining ring with a 0.875-inch inside diameter.

Installation Notes

Installation is performed by mechanical technicians or linear motion system assemblers. Before servicing any linear bearing assembly, ensure the machine is de-energized, de-pressurized, and locked out per applicable LOTO procedures. Push-in retaining rings are seated by hand or with light press pressure directly into the bore groove - do not hammer directly on the ring face. Verify the ring is fully seated in its groove before returning the assembly to service.