A cotter joint is a type of mechanical fastener used to join two or more parts together. It is typically used in applications where a secure fit is needed, such as in the connection of a crankshaft to a flywheel or connecting a piston rod to a connecting rod. This article will provide an overview of the cotter joint and identify which of the components is not a part of the joint.
Cotter Joint Overview
A cotter joint is composed of two parts: the cotter pin and the cotter key. The cotter pin is a cylindrical pin that has one end pointed and the other end flattened. This pin is inserted into a hole that is drilled into the two parts that are to be connected. The cotter key is then inserted into the other end of the cotter pin. The cotter key is a flat, rectangular-shaped key that has one end that is slotted and the other end that is rounded. The cotter key is then twisted to secure the cotter pin in place and create a strong connection between the two parts.
Identifying the Exception
The component that is not part of the cotter joint is a nut. A nut is a threaded fastener that is used to secure two or more parts together. A nut is typically used in conjunction with a bolt, which is a type of threaded rod that is used to clamp two parts together. While a nut is not part of the cotter joint, it can be used in conjunction with the cotter joint to further secure the connection between two parts.
In summary, a cotter joint is composed of two components: the cotter pin and the cotter key. The nut is not a part of the cotter joint, but it can be used in conjunction with the cotter joint to further secure the connection between two parts.