Boston Gear 34546 Sleeve Bearing Oil Impregnated Bronze

Product Description

The BOSTON GEAR 34546 is an oil-impregnated bronze sleeve bearing designed for light-load rotary and oscillating shaft applications. It features a plain bore with a 0.2520-inch inside diameter and a 0.3770-inch outside diameter, with an overall length of 0.375 inches. The sintered bronze construction is pre-loaded with lubricant, reducing the need for external oiling during normal service. Licensed machinists, maintenance technicians, and equipment rebuilders install this style of bearing in motors, fans, pumps, and light industrial machinery where quiet operation and self-lubrication are priorities.

This sleeve bearing suits residential and light commercial equipment requiring compact, low-profile bearing support. It is a standard press-fit bushing appropriate for shaft support in small electric motors, appliance assemblies, and OEM equipment rebuilds where a 0.25-inch shaft diameter and short bearing span are required. The oil-impregnated bronze material meets SAE 20 (ISO 68) and SAE 30 (ISO 100) lubrication standards, making it compatible with common mineral oil lubricant systems used across HVAC blower motors, pump assemblies, and general mechanical equipment.

Key Features

• Oil-impregnated bronze construction provides self-lubrication for extended service intervals
• Plain bore design accepts standard 0.25-inch shafts with a 0.2520-inch ID for close tolerance fit
• Maximum pressure-velocity rating of 50,000 psi-ft/min for light to moderate load applications
• Meets SAE 20 (ISO 68) and SAE 30 (ISO 100) lubrication standards
• Compact 0.375-inch OAL fits tight bearing housings and short shaft spans
• Sold individually; minimum order quantity of 5 units per purchase

Compatibility

Designed as an OEM-style replacement sleeve bearing for equipment requiring a 0.25-inch ID, 0.375-inch OD, plain-bore bronze bushing in light industrial, HVAC, and appliance motor applications.

Installation Notes

Installation is typically performed by a qualified mechanical technician or machinist. Power down and de-energize all equipment before removing the worn bearing. Press-fit bearings require a proper arbor press or installation tool to seat the bushing without distorting the bore - do not hammer directly on the bearing face. Verify shaft-to-bore clearance after installation before returning equipment to service.