jackshaft
verbEtymology From jack + shaft.
1
To transfer or synchronize rotational force by means of a jackshaft.
jackshaft
nounEtymology From jack + shaft.
1
A common mechanical component used to transfer or synchronize rotational force in a machine.
2
A wheelless axle used to turn the wheels of a locomotive.
- Final drive is by reduction gears on the jackshaft, and through flycranks and rods to the wheels.1950 October, “S.R. Diesel-Mechanical Shunter”, in Railway Magazine, page 692: