countershaft

(redirected from countershafts)
Also found in: Dictionary.

countershaft

[′kau̇nt·ər‚shaft]
(mechanical engineering)
A secondary shaft that is driven by a main shaft and from which power is supplied to a machine part.
References in periodicals archive ?
Two wet multi-plate clutches route engine power to the wheels through two input and two countershafts.
The cylinder is located at the rear of the trailer's running axles to provide the trailer with a large angle of 45 or 60 degrees, depending on the model, to the pivot that is connected to the countershafts in the middle of each axle.
As a result of the new look, the Lightning transmission uses a single integrated gear package with main and auxiliary countershafts sharing the same axial centerline and support bearings, eliminating a significant amount of iron.