Definition of rolling key clutch
: a friction clutch in which a set of rollers surrounding a shaft is wedged (as by a locking pawl) between this shaft and a hub on a second shaft to be connected with it
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“Rolling key clutch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rolling%20key%20clutch. Accessed 18 May. 2022.
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