Tristar DRF-0812-8 Flanged Sleeve Bearing 1/2 in Id Rulon Lr

Product Description

The TRISTAR DRF-0812-8 is a flanged sleeve bearing manufactured from Rulon LR, a self-lubricating PTFE-based composite material well suited for demanding rotary and oscillating load applications. It features a plain bore design with a 0.5 inch inside diameter, a 0.75 inch outside diameter, and a 1 inch overall length. The 1 inch flange outside diameter and 0.125 inch flange thickness provide positive axial location without additional hardware. With a maximum pressure times velocity (PV) rating of 10,000 psi, this bearing handles moderate-to-heavy combined loads. It is installed by millwrights, maintenance mechanics, and OEM equipment assemblers working on rotating or sliding shaft applications.

This bearing is suited for use in industrial machinery, HVAC equipment, pumps, fans, conveyors, and similar assemblies where a compact, self-lubricating plain bearing is required. The flanged configuration simplifies housing design by providing a built-in thrust face. Applications typically involve continuous or intermittent shaft rotation at low-to-moderate speeds where oil or grease lubrication is impractical or undesirable.

Key Features

• Self-lubricating Rulon LR material eliminates the need for external grease or oil maintenance
• Flanged design provides integral axial location and thrust face within the housing
• Plain bore accepts 0.5 inch diameter shafts with standard interference or slip fits
• Maximum PV rating of 10,000 psi supports combined radial and thrust load service
• Compact 1 inch overall length suits space-constrained assemblies
• Single-piece construction with no rolling elements to wear or contaminate the application

Compatibility

Designed as an OEM-style replacement or direct-fit flanged sleeve bearing for equipment requiring a 0.5 inch ID, 0.75 inch OD, 1 inch OAL plain bore bearing with a 1 inch flange outside diameter in a self-lubricating Rulon LR material.

Installation Notes

Installation is typically performed by maintenance mechanics or OEM assembly technicians. Power down and lock out all energy sources before removing the existing bearing or handling the shaft. Press-fit installation into a properly sized housing bore is standard practice; verify housing bore tolerances before pressing to avoid distorting the bearing wall. Do not apply grease or oil to the bore surface, as the Rulon LR material is self-lubricating and added lubricants can attract contaminants.