Boston Gear 34842 Sleeve Bearing 5/8 in Id Bronze

Product Description

The BOSTON GEAR 34842 is an oil-impregnated bronze sleeve bearing designed to support rotating shafts in light-to-medium duty mechanical assemblies. It features a plain bore with a 0.627-inch inside diameter, a 0.815-inch outside diameter, and a 1-inch overall length. The sintered bronze construction holds lubricant within the material, reducing the need for external re-lubrication during normal service. This bearing is typically installed by millwrights, maintenance mechanics, or equipment technicians working on motors, fans, conveyors, and general industrial drive components.

This sleeve bearing suits residential and light commercial applications where a low-maintenance, press-fit plain bearing is required. Common install scenarios include electric motor end bells, small gearbox housings, pump assemblies, and fan shaft supports. Its compact profile fits standard bearing bores without modification in most OEM and aftermarket housings. The oil-impregnated design performs reliably under continuous or intermittent rotation where grease-packed or ball bearing solutions would be impractical.

Key Features

• Oil-impregnated bronze construction provides self-lubricating service life without external grease fittings
• Plain bore design accepts standard shaft sizes for straightforward press-fit installation
• Maximum pressure times velocity rating of 50,000 psi ft/min supports moderate load and speed combinations
• Meets SAE 20 (ISO 68) and SAE 30 (ISO 100) lubrication standards for broad compatibility
• Compact 1-inch overall length fits tight housing envelopes in motors and small drive assemblies

Compatibility

Designed as an OEM-style replacement sleeve bearing for electric motors, small fans, pumps, and light industrial machinery requiring a plain bore bronze bushing with 5/8-inch shaft clearance.

Installation Notes

Installation is typically performed by a qualified millwright or maintenance mechanic. De-energize and lock out the equipment before removing the worn bearing. Press-fit installation is standard; use an arbor press and a correctly sized driver to avoid cocking the bearing in the housing bore. Do not use an open flame to heat the housing for installation, as this can degrade the oil impregnation in the bronze.