Trunnion meaning

A trunnion is a cylindrical projection on a casting for supporting and pivoting another part.


Trunnion definitions

Word backwards noinnurt
Part of speech noun
Syllabic division trun-nion
Plural The plural of trunnion is trunnions.
Total letters 8
Vogais (3) u,i,o
Consonants (3) t,r,n

Trunnion is a term commonly used in mechanical engineering and manufacturing industries. It refers to a cylindrical protrusion used as a mounting or pivoting point in various machines and equipment. Trunnions are crucial components in many mechanical systems, providing support and allowing for movement or rotation.

Function of Trunnion

Trunnions serve multiple functions depending on the specific application. One of the primary purposes of a trunnion is to support and stabilize a rotating shaft or other moving parts. They often act as a pivot point, allowing certain components to move in a controlled manner. Trunnions are also used to provide mounting points for various mechanisms within a system.

Types of Trunnions

There are several types of trunnions used in different applications. Fixed trunnions are stationary and provide support without allowing for any movement. Adjustable trunnions, on the other hand, can be repositioned or modified to change the orientation or alignment of components. Swiveling trunnions offer rotational movement, enabling parts to pivot along an axis.

Applications of Trunnion

Trunnions are utilized in a wide range of industries, including automotive, aerospace, manufacturing, and more. They are commonly found in machinery such as valves, firearms, vehicle suspensions, and ball mills. The design and material of trunnions vary based on the specific requirements of the application.

Overall, trunnions play a critical role in the functionality and performance of many mechanical systems. Their ability to support, pivot, and mount components is essential for the smooth operation of various machines and equipment.


Trunnion Examples

  1. The trunnion of the cannon was damaged during battle.
  2. The trunnion on the hinge allowed for smooth movement.
  3. The engineer inspected the trunnion to ensure it was securely attached.
  4. The trunnion bearing needed to be replaced due to wear and tear.
  5. The trunnion mount needed to be adjusted for proper alignment.
  6. The trunnion pin was lubricated to reduce friction.
  7. The trunnion block provided support for the rotating mechanism.
  8. The trunnion assembly was carefully welded together for stability.
  9. The trunnion design of the machine allowed for easy maintenance.
  10. The trunnion cap was securely fastened to prevent any leaks.


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  • Updated 15/06/2024 - 12:24:16