Precision Brand 14400 Oversized Key Stock C1018 Steel

Product Description

The PRECISION BRAND 14400 is an oversized square key stock used to transmit torque between a shaft and a mating component such as a gear, sprocket, or pulley. Manufactured from C1018 steel with a zinc-plated finish, this key stock measures 1 foot in length, 9/16 inches wide, and 9/16 inches tall. The oversized profile provides a close tolerance fit in keyways that require a tighter-than-standard key, reducing slop and preventing rotational play under load. Machinists, millwrights, and maintenance mechanics install this type of key stock during assembly, repair, or replacement of rotating drive components across a wide range of industrial and commercial equipment.

This key stock is suited for use in power transmission assemblies where shafts and hubs must be positively locked against rotation. Common applications include conveyor systems, pump drives, gearboxes, fans, and general machinery. The 1-foot length can be cut to the required key length using standard metalworking tools such as a hacksaw, bandsaw, or milling machine. The zinc-plated finish provides a basic level of corrosion resistance for storage and light-duty environmental exposure.

Key Features

• C1018 steel construction for good machinability and moderate strength
• Zinc-plated finish for corrosion resistance during storage and installation
• Oversized profile for tight keyway fits that minimize rotational play
• Square cross-section at 9/16 inches by 9/16 inches
• 1-foot length allows field cutting to required dimensions

Compatibility

Designed as an oversized replacement key stock for power transmission applications requiring a 9/16-inch square key profile in shaft-and-hub assemblies.

Installation Notes

Installation is typically performed by a machinist or millwright. De-energize and lock out the equipment before removing or installing any key stock. The key stock should be cut to the correct working length and deburred before fitting into the keyway. Do not force an oversized key into an undersized or damaged keyway, as this can cause shaft or hub damage.

Technical Specifications

• Material: C1018 Steel
• Finish: Zinc Plated
• Type: Oversized
• Cross-Section Shape: Square
• Length: 12 inches
• Width: 9/16 inches
• Height: 9/16 inches

Standard Information

• Brand: PRECISION BRAND
• Manufacturer Part Number: 14400