Mak-a-key 7008750875-12 Undersized Key Stock 18-8 Ss

Product Description

The MAK-A-KEY 7008750875-12 is an undersized key stock bar used to transmit torque between a shaft and a hub in mechanical drive assemblies. Machined from 18-8 stainless steel, it measures 7/8 inches high by 7/8 inches wide by 12 inches long and is manufactured to undersized tolerances, which allows it to fit standard keyway slots with the necessary clearance for easy assembly. The 18-8 stainless alloy provides good corrosion resistance, making this key stock suitable for wet or mildly corrosive service environments. Machinists, millwrights, and maintenance technicians use this stock bar when setting or replacing keyed shaft connections on pumps, fans, and conveyor drives.

This key stock is appropriate for use in light to medium industrial drive applications where a keyed shaft-to-hub connection is required. Undersized key stock is the standard choice when a slip fit is needed for disassembly and reassembly without press-fitting. It is commonly installed in pump shafts, gearbox inputs, fan hubs, and similar rotating equipment found in HVAC mechanical rooms, pump stations, and industrial process equipment. One piece is included per package.

Key Features

• Undersized tolerance for easy shaft and hub keyway fitment
• 18-8 stainless steel construction offers corrosion resistance in wet environments
• Uniform 7/8 x 7/8 inch square cross-section
• 12-inch length allows on-site cutting to required key length
• UNSPSC Code 31163208 for procurement classification

Compatibility

Designed as a standard undersized square key stock for use in 7/8-inch keyway shaft and hub connections in rotating mechanical drive assemblies.

Installation Notes

Installation is typically performed by a millwright, machinist, or maintenance technician. De-energize and lock out all drive equipment before removing or installing key stock. Cut the key to the required length using an appropriate metal saw or abrasive cutoff tool and deburr all edges before fitting. Verify keyway slot dimensions on both shaft and hub before installation to confirm proper fit.