Bunting Bearings CB263220 bronze sleeve bearing 1 5/8 in bore 2 in OD 2 1/2 in length

Bronze sleeve bearing for inch shafts

The Bunting Bearings CB263220 is a cast bronze sleeve bearing designed for inch-series shafts measuring 1 5/8 in bore and 2 in outside diameter. Its 2 1/2 in overall length provides a broad load-bearing surface for moderate-speed rotary or oscillating motion. The C93200 SAE 660 alloy suits general machinery, conveyors and agricultural equipment where a non-flanged plain bearing is specified.

Thermal range and power considerations

The bearing operates continuously from -450 °F to 500 °F, covering cryogenic to high-heat environments without lubricant breakdown. Bronze-on-steel friction remains low when proper lubrication is maintained, keeping temperature rise minimal under normal loads. No external power is drawn; the component is passive and adds no electrical or thermal load to the system.

Replaces worn plain bearings in inch-dimension

This sleeve directly substitutes an existing 1 5/8 in bore, 2 in OD, 2 1/2 in length bronze bushing that has exceeded its wear tolerance of +/- 0.005 in. The upgrade is justified when the original bearing shows scoring, excessive clearance or lubricant contamination that cannot be corrected by relubrication alone. It is not suited for applications requiring flanged location, rolling-element speeds or corrosion-resistant alloys beyond standard cast bronze.