- any of a series of uniformly spaced ridges on a shaft, parallel to its axis and fitting inside corresponding grooves in the hub of a gear, etc., to transmit torque.
- feather key.
verb (used with object), splined, splin·ing. Machinery.
Origin of spline
Examples from the Web for spline
The clutch arm k slides upon a rod x, and has a feather projecting into a spline in x.Modern Machine-Shop Practice, Volumes I and II|Joshua Rose
It is a neat but weak joint unless reinforced by a spline, nails, or in some other way.
Grooves can be cut in both cleat and board and a tongue or spline inserted (Fig. 494).Woodworking for Beginners|Charles Gardner Wheeler
A spline or tongue miter is one which has a spline or tongue inserted at right angles to the joint.
The rotating ratchet is in the band of the cylinder and has a spline in it, and a pall on its outside.
British Dictionary definitions for spline
Word Origin for spline
Word Origin and History for spline
"long, thin piece of wood or metal," 1756, from East Anglian dialect, perhaps from older Danish splind or North Frisian splinj.