- 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.
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Origin of spline
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Example sentences 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.