cup leather

noun

Definition of cup leather

: a packing (as in hydraulic cylinders and pumps) that consists of a ring of leather of a U-shaped or cup-shaped cross section and that is made tight by the pressure of the fluid on the hollow side

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Learn More About cup leather

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Cite this Entry

“Cup leather.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cup%20leather. Accessed 25 Oct. 2021.

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