Definition of jack shaft in English:
A small auxiliary or intermediate shaft in machinery.
- The tip jack shaft comprises at least one group of contact links which are arranged in a comb-type manner on the wide side of the tip jack shaft.
- Using Dave's lathe, we made a new coupler that would keyway inside our fulcrum and jack shafts. This removed much of our runout.
Definition of jack shaft in:
- US English dictionary
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