- 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
Historical Examples of spline
The clutch arm k slides upon a rod x, and has a feather projecting into a spline in x.
Fig. 1533 represents the chuck in use for holding a piece of shafting s to cut a keyway or spline in it.
The sliding half is driven by a feather fast in its bore, and sliding in a feather-way or spline in the shaft.
Grooves can be cut in both cleat and board and a tongue or spline inserted (Fig. 494).
Dowels can be used with this joint (see Dowelling), or grooves can be cut and a strip or spline or tongue inserted (Fig. 558).
Word Origin for spline
"long, thin piece of wood or metal," 1756, from East Anglian dialect, perhaps from older Danish splind or North Frisian splinj.