Value Collection MP31964 Woodruff Key 1009 Steel 5-pack

Product Description

The VALUE COLLECTION MP31964 is a 1009 Standard Woodruff Key designed for use in shaft-to-hub assemblies where precise rotational alignment and torque transfer are required. Machined from steel, this key measures 1-1/8 inches long by 5/16 inches wide and conforms to USA Standard 1009 specifications. Each pack contains 5 keys, making it practical for service shops and maintenance crews that replace these components regularly. Woodruff keys are commonly installed by machinists, millwrights, and equipment technicians working on motors, pumps, compressors, and rotating drive assemblies across HVAC, industrial, and mechanical applications.

This Woodruff key is suited for applications where a semicircular key fits into a milled keyway on a shaft, securing pulleys, gears, or hubs against rotational slip. It is appropriate for light to moderate torque applications in both residential and commercial mechanical equipment. The 1009 designation identifies the key size within the standard USA Woodruff key numbering system, allowing straightforward cross-referencing when ordering replacements for existing assemblies.

Key Features

• USA Standard 1009 Woodruff key profile for accurate keyway fitment
• Steel construction for durability in rotating shaft assemblies
• 1-1/8 inches long by 5/16 inches wide nominal dimensions
• Pack of 5 keys reduces downtime by keeping spares on hand
• Conforms to standard UNSPSC Code 31163207 for hardware procurement

Compatibility

Designed as a standard 1009 Woodruff key replacement for shaft-to-hub assemblies that require a USA Standard 1009-profile semicircular key in motors, pumps, compressors, and similar rotating equipment.

Installation Notes

Installation is typically performed by a machinist, millwright, or qualified equipment technician. Before installing or removing a Woodruff key, de-energize and lock out the equipment per OSHA lockout/tagout procedures. The key should seat fully in the shaft keyway without binding; a brass drift punch is commonly used to seat or remove keys without damaging the shaft. Inspect the mating hub keyway for wear or damage before reinstalling any key component.