A-WK28-AI Woodruff Keys, 1/4 x 1-1/2
A-WK28-AI Woodruff Keys, 1/4 x 1-1/2
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One New Aftermarket Replacement Woodruff Key - 1/4" x 1-1/2" (A&I Products WK28)
This Woodruff key is a semi-circular, half-moon shaped shaft key used to lock rotating components - such as pulleys, sprockets, gears, and impellers - onto a shaft, preventing independent rotation. It seats in a semi-circular keyway cut into the shaft, with the flat top face engaging the mating hub or bore keyway to transfer torque. Woodruff keys also serve as a fail-safe, designed to shear under overload before more expensive components are damaged. This key meets ANSI B17.2 / SAE J502 dimensional standards and is widely used across agricultural equipment, lawn and garden machinery, small engines, and general industrial power transmission applications.
Specifications
- Width: 1/4 in.
- Length (Nominal Diameter): 1-1/2 in.
- Style: Semi-circular (Woodruff / half-moon)
- Standard: ANSI B17.2 / SAE J502
Compatible Applications
Universal fitment. Suitable for any shaft and hub assembly using a standard 1/4 in. x 1-1/2 in. Woodruff keyway, including agricultural equipment, lawn and garden tractors, small engines, and general power transmission machinery. Verify keyway dimensions before ordering.
Replaces Part Number(s):
A-WK28-AI, WK28
New aftermarket replacement part - not remanufactured, not used.
