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The VALUE COLLECTION 33966 is a cold drawn steel undersized key stock bar used to transmit torque between a shaft and a mating hub, gear, sprocket, or pulley. Measuring 0.5 inches high by 0.5 inches wide by 12 inches long, this bar stock ships with a plain finish and is sized to the undersized tolerance standard, allowing machinists and maintenance technicians to achieve the precise fit required for driven-component assemblies. Cold drawn steel construction delivers consistent dimensional accuracy and adequate surface hardness for general industrial drive applications.
Undersized key stock is commonly used in light to medium-duty power transmission setups across industrial maintenance, pump repair, conveyor systems, and mechanical drive train service. The 12-inch length gives technicians flexibility to cut the stock to the finished key length required for a specific shaft keyway, reducing waste compared to longer bar stock. This stock is installed by machinists, millwrights, and industrial maintenance mechanics.
Designed as an OEM-style replacement or maintenance stock for shaft and hub assemblies requiring a 1/2-inch square undersized key stock in standard industrial power transmission applications.
Installation is performed by machinists or qualified maintenance mechanics. Ensure the shaft and hub are fully de-energized and locked out before removing or installing any drive components. Cut the key stock to the required finished length using appropriate metal cutting tools and deburr all edges before fitting into the keyway. Follow applicable ANSI and OSHA lockout/tagout procedures throughout the service process.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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