Leaf Spring Lock Pin

The leaf spring pin is a vital component because it is the pivot and connecting point on various leaf spring suspensions. There are two different types of leaf spring pins which are smooth and threaded.

Leaf spring lock pin principle

The leaf spring lock pin is composed of solid metal and it may be smooth or threaded. Springs pins will be drilled and may have a passage to facilitate the delivery of grease to the bushings. Each kind of spring lock pin is vital to the suspension, the smooth pin will smoothen out the body of the pin and will have one or two indentations utilized to center the pin in the hanger and retain it in place. The threaded pin is another type that can be helpful with spring movement because of side loading.

Common issues with a faulty leaf spring lock pin

A faulty spring lock pin can lead to poor lubrication, damage to the bushings or the spring can break.