WordReference Random House Unabridged Dictionary of American English © 2025
feath′er key′, [Mach.]
- Mechanical Engineeringa rectangular key connecting the keyways of a shaft and a hub of a gear, pulley, etc., fastened in one keyway and free to slide in the other so that the hub can drive or be driven by the shaft at various positions along it. Also called feather, spline.
'feather key' also found in these entries (note: many are not synonyms or translations):