Value Collection C12301 Woodruff Key Steel 50 Pack

Product Description

The VALUE COLLECTION C12301 is a standard Woodruff key designed for use in mechanical shaft-and-hub assemblies where positive rotational drive is required. Each key measures 1/2 inch long by 1/16 inch wide and is manufactured from steel for reliable strength in typical power-transmission applications. The Woodruff key profile allows the key to seat flush in a curved keyseat milled into the shaft, simplifying alignment during assembly. This listing covers a pack of 50 keys, suited for shops, maintenance teams, and production environments that go through keys regularly. Machinists, millwrights, and maintenance mechanics are the typical installers.

Woodruff keys of this size are used in light-duty shaft applications including small motors, pumps, fans, and drive shafts where a semi-circular key geometry is specified. The 204 designation follows the standard Woodruff key numbering system, where the last two digits indicate the nominal diameter in eighths of an inch and the preceding digits indicate the width in thirty-seconds of an inch. This pack quantity is practical for facilities maintaining a range of rotating equipment or for shops building assemblies in volume.

Key Features

• Standard 204 Woodruff key profile for use in semi-circular keyseats
• 1/2 inch length by 1/16 inch width nominal dimensions
• Steel construction for strength in power-transmission service
• Pack of 50 keys for shop stock or production use
• Conforms to USA Standard 204 Woodruff key specification

Compatibility

Designed as an OEM-style replacement or stock Woodruff key for any shaft-and-hub assembly requiring a standard 204 semi-circular key with 1/2 inch length and 1/16 inch width dimensions.

Installation Notes

Installation is typically performed by a machinist or maintenance mechanic. Always de-energize and lock out the equipment before servicing any shaft assembly. Ensure the keyseat on both shaft and hub is clean and free of burrs before seating the key. Do not force an oversized key into an undersized keyseat, as this can damage the hub bore or shaft.