A trunnion (from Old French trognon 'trunk') [1] is a cylindrical protrusion used as a mounting or pivoting point. First associated with cannons, they are an important military development.

The meaning of TRUNNION is a pin or pivot on which something can be rotated or tilted; especially : either of two opposite gudgeons on which a cannon is swiveled.

What are Trunnions and What Are They Used For? Trunnions are mechanical components used in engineering and machinery. They are usually cylindrical or conical projections or pivots that …

Trunnion mounts are engineered to provide robust support and precise rotational movement for heavy equipment or components. The fundamental design revolves around cylindrical …

Dec 2, 2025 · A trunnion is essentially a short length of pipe or solid bar that is welded perpendicularly onto the main process pipe. It is generally a rigid pipe attachment, such as a …

A trunnion is a type of pivot or hinge that allows a rotating shaft to be supported and constrained at both ends. It consists of a cylindrical bearing that is mounted on a flat surface, with a pin or …

2 meanings: 1. one of a pair of coaxial projections attached to opposite sides of a container, cannon, etc, to provide a.... Click for more definitions.

What is a Trunnion? A trunnion is a cylindrical protrusion used as a mounting or pivoting point.

A trunnion is a cylindrical projection on a component, such as a cannon or engine, that serves as a pivot point for rotation or support. It is commonly used in mechanical systems.

Oct 25, 2025 · (firearms) One of the short stubby bearings on either side of a cannon; a pintle. (engineering) A similar rotational bearing comprising a rotating arc or ring sliding in the groove …