UNSPSC 31163218: Bearing adapter sleeve

Tapered adapter sleeves used to mount tapered bore bearings.

UNSPSC 31163218 Bearing adapter sleeve is a Commodity code covering mechanical coupling components that state and local governments procure as replacement parts and wear items for equipment maintenance across departments and authorities. The code captures off-the-shelf bearing sleeves — cylindrical metal components that fit between shafts and bearings to manage radial loads, adjust alignment, or accommodate different bearing bore sizes — used in rotating machinery, pumps, motor assemblies, and industrial equipment across public facilities, utilities, and vehicle fleets. Issuing bodies soliciting under this code span state transportation departments, county maintenance shops, municipal utilities, public works divisions, and transit authorities managing mechanical systems across buildings, water treatment plants, wastewater infrastructure, and fleet operations.

The source contains no recent state and local contract opportunities tagged to this Commodity code, signaling either low procurement frequency under this specific code classification or inconsistent coding practices in jurisdictional procurement systems. State and local buyers typically acquire bearing adapter sleeves through standing maintenance contracts, cooperative purchasing agreements with industrial distributors, or as line items in broader equipment repair and replacement solicitations coded at the Family or Class level rather than at this narrowly defined Commodity tier. Firms pursuing this code should track broader mechanical component and equipment maintenance RFPs from state departments of transportation, regional transit authorities, and large county public works departments, which often embed bearing sleeves and related coupling components in larger work scope rather than soliciting them as discrete procurements.