rocker arm

  1. a rocking or oscillating arm or lever rotating with a moving shaft or pivoted on a stationary shaft.

Origin of rocker arm

First recorded in 1855–60

Words Nearby rocker arm Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use rocker arm in a sentence

  • When the exhaust valve is operated by the tappet rod and rocker arm the intake valve is also carried down with it.

    Aviation Engines | Victor Wilfred Pag
  • The pump is attached to the rocker arm, and therefore easily accessible for repairs.

    Steam Engines | Anonymous
  • A small non-revolving shaft was located directly under the rocker arm rollers that actuated the exhaust valves.

  • In case a rocker arm is used, both arms point in the same direction like the letter U.

  • Disconnect the valve rod from rocker arm and block valve stem so it cannot blow out of the gland or let valve work back.

British Dictionary definitions for rocker arm

rocker arm

  1. a lever that rocks about a pivot, esp a lever in an internal-combustion engine that transmits the motion of a pushrod or cam to a valve

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012