Boston Gear 34754 Sleeve Bearing Oil Impregnated Bronze

Product Description

The BOSTON GEAR 34754 is an oil-impregnated bronze sleeve bearing designed for plain-bore shaft support in rotating equipment applications. With a 0.503-inch inside diameter, 0.753-inch outside diameter, and 0.625-inch overall length, this compact bearing delivers self-lubricating performance without the need for external grease fittings. The sintered bronze construction retains oil within the material matrix, releasing it continuously during operation. It is rated for a maximum pressure times velocity (PV) value of 50,000 psi, making it suitable for moderate-load, moderate-speed applications. Licensed mechanics and maintenance technicians working on motors, fans, pumps, and light machinery are the primary installers.

This sleeve bearing is suited for residential and commercial equipment requiring a compact, self-lubricating plain bore insert. Typical applications include electric motor end bells, small gear reducers, conveyor systems, and fan assemblies where low-friction shaft support is needed in a confined space. The oil-impregnated design reduces maintenance intervals by eliminating the need for periodic lubrication in many service environments. It meets SAE 20 (ISO 68) and SAE 30 (ISO 100) lubrication standards.

Key Features

• Oil-impregnated bronze construction provides continuous self-lubrication during operation
• Plain bore design with 0.503-inch inside diameter for direct shaft fit
• Maximum PV rating of 50,000 psi supports moderate-load, moderate-speed service
• Meets SAE 20 (ISO 68) and SAE 30 (ISO 100) lubrication standards
• Compact 0.625-inch overall length fits tight bearing bores and housings
• Single-piece construction with no moving parts or external lubrication points

Compatibility

Designed as an OEM-style replacement sleeve bearing for plain-bore housing applications requiring a 0.5-inch shaft diameter, 0.75-inch outer diameter, and 0.625-inch length in oil-lubricated rotating equipment.

Installation Notes

Sleeve bearings of this type are typically installed by licensed mechanics or maintenance technicians using a press or arbor tool to seat the bearing flush within the housing bore. Power down and lock out the equipment fully before removing or installing any bearing. Avoid hammering directly on the bearing face, as this can distort the bore or damage the oil-impregnated material. Confirm shaft and housing tolerances match the bearing dimensions before pressing to final position.