Tristar DRS-0305-3 Sleeve Bearing Rulon Lr 3/16 Id

Product Description

The TRISTAR DRS-0305-3 is a Rulon LR sleeve bearing designed for low-friction rotational and linear motion applications. It measures 3/16 inches inner diameter, 5/16 inches outer diameter, and 3/8 inches overall length. Rulon LR is a PTFE-based composite material known for its self-lubricating properties, chemical resistance, and dimensional stability under load. This bearing is suited for light-duty shaft support in motors, fans, small appliances, and mechanical assemblies where maintenance-free operation is a priority. Technicians and maintenance professionals select this style of bearing when replacing worn or failed OEM bearings in compact rotating equipment.

This sleeve bearing fits applications where the shaft diameter is 3/16 inches and the housing bore accepts a 5/16-inch OD insert. Its compact 3/8-inch length suits confined mounting spaces common in small electric motors, fan assemblies, and precision mechanical components found in residential and light commercial HVAC equipment, pumps, and similar trade-service machinery. The Rulon LR material eliminates the need for external lubrication in most service environments, making it practical for hard-to-access installations.

Key Features

• Rulon LR PTFE composite construction provides self-lubrication and eliminates regreasing intervals
• 3/16-inch inner diameter fits standard small-motor shaft sizes
• 5/16-inch outer diameter for press-fit installation into compatible housings
• 3/8-inch overall length suits compact, space-constrained assemblies
• Chemical resistance and low friction coefficient support reliable long-term operation

Compatibility

Designed as an OEM-style replacement sleeve bearing for small motors, fan assemblies, and mechanical equipment requiring a 3/16-inch ID by 5/16-inch OD by 3/8-inch OAL Rulon LR insert bearing.

Installation Notes

Sleeve bearing installation is typically performed by qualified mechanical or HVAC technicians. Disconnect and lock out all power to the equipment before disassembling any rotating components. Press-fit installation requires a correctly sized arbor or press tool to avoid deforming the bearing bore - never hammer directly on the bearing face. Verify shaft and housing dimensions before installation to confirm proper interference fit.