main shaft

noun

, Machinery.

1. the principal shaft of a motor, transmission, etc. ( jackshaft ).

Example Sentences

This gear meshes with one of 35 teeth upon a shaft at right angles to the main shaft and parallel to the axis of the aerodrome.

From Project Gutenberg

Once, in particular, I went down the main shaft in the dark, and gave a miner an awful fright.

From Project Gutenberg

Continuing to retrace their steps, Captain Dan and Oliver made for the main shaft.

From Project Gutenberg

Both of these joined the main shaft after describing an angle.

From Project Gutenberg

Mounted also on the main shaft is one of a pair of reversed cone drums.

From Project Gutenberg