DictionarysplineInterlocking fitting
noun / verb

spline

A fitting that joins parts by engaging matching grooves.

A spline joins the two panels by fitting into matching grooves.

Etymology

Spline names a narrow strip or projecting ridge. In machinery, matching ridges and grooves lock parts together while distributing force along their length.

More examples

  • Worn splines allow the gear to slip on the shaft.
  • Slide the wooden spline into the grooves before clamping the boards.
  • The machinist splines the shaft to fit the gear's grooved opening.

Forms

spline · splines · splined · splining

Similar words

key
Locks a hub to a shaft using a single keyway.
dowel
Joins parts through matching round holes rather than grooves.