Hussmann 521239 Sleeve Bearing Door Bushing

Product Description

The HUSSMANN 521239 is a sleeve bearing door bushing designed for commercial refrigeration door assemblies. This small-diameter bushing supports smooth door pivot and hinge movement by providing a low-friction bearing surface between the door pin and the surrounding housing. With an outer diameter of 0.437 inches, an inner diameter of 0.312 inches, and a length of 0.500 inches, it is a precise-fit component used in commercial display case and refrigeration door hardware. Installation is typically performed by refrigeration technicians and commercial appliance service professionals during door hinge rebuilds or preventive maintenance cycles.

This bushing is used in commercial refrigeration equipment where door pivot hardware experiences repeated wear from constant open-and-close cycles. It replaces worn or damaged sleeve bearings that cause door misalignment, excess play, or binding. Typical applications include walk-in cooler doors, reach-in display case doors, and other commercial refrigeration door assemblies that rely on a pin-and-bushing hinge configuration.

Key Features

• Outer diameter of 0.437 inches for precise housing fit
• Inner diameter of 0.312 inches to accept door pivot pin
• Length of 0.500 inches for proper bearing engagement depth
• Sleeve-style bearing design reduces friction at door pivot points
• Direct OEM replacement for Hussmann commercial refrigeration door hardware

Compatibility

Designed as an OEM replacement door sleeve bearing bushing for Hussmann commercial refrigeration equipment. Consult your unit service manual or door hinge assembly diagram to confirm fitment before installation.

Installation Notes

Installation is performed by qualified refrigeration or commercial appliance technicians. Before servicing door hinge hardware, disconnect or de-energize the unit as applicable and relieve any door tension from spring-loaded hinge assemblies. Standard hand tools and a suitable press or driver may be needed to seat the bushing flush in the hinge housing. Inspect the mating door pin for wear and replace it if out of tolerance before installing a new bushing.

Technical Specifications

• Outer Diameter: 0.437 inches
• Inner Diameter: 0.312 inches
• Length: 0.500 inches
• Type: Sleeve Bearing Bushing
• Application: Commercial Refrigeration Door Hardware

Standard Information

• Brand: HUSSMANN
• Manufacturer Part Number: 521239