UNSPSC 31163015: Oldham coupling

A type of coupling consisting of a pair of disks, one flat and the other hollow, both pinned to the ends of the shafts.A third, center disk with a pair of lugs projecting from each face of the disk fits into the slots between the two end disks and enables one shaft to drive the other shaft.

UNSPSC 31163015 Oldham coupling, a Commodity code, captures flexible shaft-coupling components used primarily in rotating machinery and industrial equipment applications. State and local governments procure these couplings as replacement parts or components within larger mechanical systems—typically for water treatment facilities, wastewater plants, HVAC systems, pump stations, and other infrastructure where rotating shafts require alignment and vibration damping. The couplings appear in maintenance and repair work across departments of public works, utilities, and facilities management, as well as in capital construction projects involving mechanical equipment installation.

The recent opportunity record for this code shows minimal direct relevant activity. The single posted solicitation—DeKalb County's ITB 2026-076-ITB for reconstruction of the DeKalb Tennis Center (due July 13, 2026)—is tagged to this coupling code but describes IT and low-voltage infrastructure work (conduit, cabling, terminations, and device coordination) that does not reflect the mechanical coupling scope. The mismatch suggests either a classification error in the posting or an incidental coupling component reference buried in a much broader infrastructure project. Without additional recent solicitations directly soliciting Oldham couplings or mechanical coupling systems, the code shows limited current procurement activity at the state and local level.