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trunnion

trunnion

1 9.9
A round metal support that lets doors or machine parts turn
  • noun
  • /ˈtrʌn.jən/
  • Specialized
translation icon : trunnión
  • Each trunnion supports the weight of the rotating part, ensuring stability and precision in movement.

Examples

  • The SuperPac actuator features fully gasketed aluminum construction with zinc chromate-plated translating tubes, double clevis ends, and optional trunnion mounts.

    Academic text (2006)
  • Auto assembly workers should work more comfortably with new trunnion fixtures, shown here on a test rig.

    Academic text (1999)
  • A trunnion support located on the exhaust diffuser housing allows thermal expansion of the casing.

    Academic text (1994)
  • Peak Industries of Dearborn, Mich., is designing and building the new trunnion fixtures.

    Academic text (1999)
  • Sandusky International sought to reduce the cost of the rollers by making trunnions of stainless steel instead of nickel aluminide.

    Academic text (1998)
  • A single trunnion bolt provides for mounting a single actuator or a ganged set to independently actuate as many valves as required.

    Academic text (1995)
  • The year-round stock includes trunnions, lifting bars, filters, diffusers, scales, and emergency repair kits to meet a variety of needs.

    Academic text (1997)
  • The engineer explained how the trunnion allows the crane arm to pivot smoothly during operation.

  • The design of the machine includes a trunnion that facilitates tilting, enhancing its functionality.

Synonyms

spindle
vstrunnion
  • Specialized
3 6.7

A central rod that turns and supports other machine parts

acts as the stationary pivot that supports and allows parts to tilt
journal
vstrunnion
  • Specialized
2 8.9

Part of a rotating shaft that turns inside a bearing

acts as the fixed support that holds and lets objects pivot
arbor
vstrunnion
  • Specialized
1 9.6

A metal rod that turns and holds machine parts

serves as the fixed pivot support rather than the turning axis itself
mandril
vstrunnion
  • Specialized
9.2

A metal rod in a machine that turns and holds larger parts like wheels

acts as the stationary pivot support rather than the rotating power axis
rotating shaft
vstrunnion
  • Specialized
4.4

A rod that turns to move parts in a machine

functions as the fixed support or pivot rather than the power axis

How Strong

support
141 1.4
axle
  • Specialized
33 3.5
to shaft
  • Specialized
1 7.8
trunnion
  • Specialized
1 9.9
swivel pin
  • Specialized
7.5

Surface Forms

trunnion singular
trunnions plural

Etymology

Trunnion names a round support or pivot on a machine that lets things turn. A helpful way to remember it is to hear trunnion like turn, because a trunnion is the part that makes heavy objects 'turn' or rotate.