Boston Gear 35558 Flanged Sleeve Bearing 3/8 in Id Bronze

Product Description

The BOSTON GEAR 35558 is a flanged sleeve bearing machined from oil impregnated bronze, designed for light-to-medium duty shaft support in rotating machinery. It measures 3/8 inches inside diameter, 1/2 inches outside diameter, and 1 inch overall length, with a flange outside diameter of 11/16 inches and a flange thickness of 3/32 inches. The sintered bronze construction holds a reservoir of lubricating oil within the material itself, reducing the need for external lubrication in many applications. Maintenance technicians, millwrights, and equipment assemblers install this style of bearing where low-to-moderate loads and moderate shaft speeds are present.

This bearing is suited for use in electric motors, small gear drives, conveyors, fans, and general industrial machinery where a plain bore flanged bushing is required. The flanged design allows the bearing to be pressed into a housing bore while the flange provides a positive axial stop, simplifying installation and maintaining consistent positioning. Applications span both light commercial and industrial equipment where a compact, self-lubricating plain bearing is the preferred solution over rolling-element designs.

Key Features

• Oil impregnated bronze construction provides self-lubrication for reduced maintenance intervals
• Flanged design with 11/16 inches flange OD and 3/32 inches flange thickness for positive axial location
• Plain bore at 0.377 inches inside diameter for standard shaft fitment
• 0.502 inches outside diameter for press-fit installation into standard housing bores
• Maximum pressure times velocity rating of 50,000 psi for load and speed application sizing
• Meets SAE 20 (ISO 68) and SAE 30 (ISO 100) lubricant standards

Compatibility

Designed as an OEM-style replacement or direct-fit flanged sleeve bearing for equipment requiring a 3/8 inches shaft bore, 1/2 inches housing bore, and 1 inch overall length in a plain bronze bushing configuration.

Installation Notes

Installation is typically performed by millwrights or equipment maintenance technicians. Press the bearing into the housing bore using an arbor press or suitable driving tool sized to contact the outer diameter only - never drive against the flange face or bore surface. Ensure the shaft and housing are clean and free of burrs before installation. Consult equipment manufacturer tolerances for shaft-to-bore clearance before final assembly.