Value Collection 31953 Woodruff Key Steel Pack of 50

Product Description

The VALUE COLLECTION 31953 is a No. 506 standard Woodruff key used to secure rotating components such as pulleys, gears, and sprockets to shafts. Woodruff keys fit into a semicircular keyway cut into the shaft and a matching slot in the hub, preventing relative rotation between the two parts. This key measures 3/4 inches long by 5/32 inches wide and is manufactured from steel for reliable strength in mechanical drive applications. Each pack contains 50 keys, making it suitable for shop stock or production use. Machinists, millwrights, and maintenance technicians are the primary installers of this hardware.

The No. 506 Woodruff key is used in light to medium-duty mechanical assemblies where a self-aligning key connection is required. Common applications include electric motor shafts, pump drive assemblies, and small engine accessory drives in both residential and commercial equipment. The semicircular profile allows the key to self-align within the shaft keyway during assembly, which simplifies installation in tight or angled shaft configurations. This pack of 50 is well suited for maintenance departments, machine shops, or service vehicles that require ready access to standard key stock.

Key Features

• No. 506 standard Woodruff key profile for compatibility with USA standard keyway dimensions
• 3/4 inches long by 5/32 inches wide for precise shaft-to-hub fitment
• Steel construction provides adequate shear strength for typical mechanical drive loads
• Semicircular body self-aligns in the shaft keyway during assembly
• Pack of 50 supports bench stock and production inventory needs
• UNSPSC Code 31163207 for procurement and catalog classification

Compatibility

Designed as a USA standard No. 506 Woodruff key replacement for shafts and hubs machined to accept standard 506 keyway dimensions.

Installation Notes

Woodruff keys are installed by machinists or maintenance technicians using standard hand tools. Always de-energize and lock out the equipment before removing or installing shaft components. Inspect the keyway on both the shaft and hub for burrs or damage before seating the key; a damaged keyway can cause the key to loosen under load. Do not force an oversized or undersized key into a keyway, as improper fit compromises torque transfer and can damage mating parts.