Value Collection A996838 Undersized Key Stock 1-1/4x1-1/4x12 in

Product Description

The VALUE COLLECTION A996838 is an undersized key stock bar used to transmit torque between a shaft and a hub in mechanical drive assemblies. Machined from cold drawn steel with a plain finish, this key stock measures 1-1/4 inches high by 1-1/4 inches wide by 12 inches long. The undersized designation means the cross-section is ground slightly below nominal to allow controlled fit in standard keyways without binding. Machinists, millwrights, and maintenance technicians cut this bar stock to length on-site to suit the specific shaft and hub pairing at hand.

This key stock is suited for general industrial maintenance, repair, and fabrication work where a square-profile undersized key is required. Common applications include conveyor drives, pump shafts, gearbox assemblies, and fan hubs. The 12-inch bar length provides enough stock to yield multiple cut-to-length keys from a single piece, making it practical for shop inventory or job-site use across a range of shaft sizes that accept a 1-1/4-inch square keyway.

Key Features

• Undersized cross-section allows controlled fit in standard 1-1/4 inch square keyways without binding
• Cold drawn steel construction provides consistent dimensional tolerances and good surface finish
• Plain finish — no coating or plating — suitable for applications where a bare steel surface is acceptable
• 12-inch length can be cut to yield multiple keys from a single bar
• Square 1-1/4 inch x 1-1/4 inch profile suits heavy-duty shaft and hub torque transfer requirements

Compatibility

Designed as a standard undersized replacement or fabrication key stock for mechanical drive assemblies using a 1-1/4 inch square keyway on shafts and hubs.

Installation Notes

Installation is typically performed by a machinist or millwright. Shut down and lock out the drive system fully before removing or installing any key stock. Cut bar stock to required length using a mill, bandsaw, or appropriate metal-cutting tool, then deburr all cut edges before fitting. Verify keyway dimensions and fit before final assembly to avoid overstress on the hub or shaft.