What is the difference between a collar and a bushing?

Collars and bushings are crucial components in the construction and manufacturing industries, with each having unique features and applications. A collar, specifically a shaft collar, is a mechanical component used on a shaft to prevent motion, while a bushing is a type of bearing that reduces friction and wear.

Understanding Shaft Collars

Function of Shaft Collars

A shaft collar is primarily used to secure components onto shafts. They also serve as mechanical stops, locating components, and bearing faces. Their ease of installation and adjustment makes them a desirable component in various applications.

Types of Shaft Collars

There are two main types of shaft collars: set screw and clamp. Set screw collars use a screw to secure the collar onto the shaft, while clamp collars distribute force evenly around the shaft for a more secure hold.

Materials and Selection

Shaft collars are made from a variety of materials such as steel, stainless steel, aluminum, and plastic. The choice of material depends on the application and environmental conditions. Factors to consider when selecting a collar include shaft size, load capacity, and temperature resistance.

Understanding Bushings

Function of Bushings

A bushing, also known as a plain bearing, is used to reduce friction between rotating parts. They are typically inserted into a housing to provide a bearing surface for rotary applications.

Materials and Selection

Bushings are made from various materials such as bronze, plastic, and ceramic. The choice of material is determined by factors such as load, speed, and operating temperature. Other considerations include the type of motion (rotary, linear) and the type of lubrication required.

Distinguishing Between a Collar and a Bushing

While both collars and bushings serve to facilitate mechanical operations, their roles are distinct. A collar is used to restrict movement, locate components, and serve as a mechanical stop; a bushing is primarily used to reduce friction and wear in a rotating component.

The Advantage of Shaft Collars in Transmission Systems

Shaft collars have a significant advantage in transmission systems due to their versatility and efficiency. They are easy to install, adjust and remove, providing a cost-effective solution for power transmission applications.


In conclusion, while both shaft collars and bushings are essential components in mechanical operations, they serve different purposes. Understanding their differences and choosing the right component for your application can significantly enhance the performance and lifespan of your machinery.

For more information, please contact us directly at our technical department via email. We strive to respond to all inquiries within 24 hours.

Our company is a leading provider of shaft collars in China. In addition to shaft collars, we offer a wide variety of agricultural machinery parts, drive shafts, and bushings. Our products are customizable, of high quality, and have received positive reviews from customers worldwide. We pride ourselves on offering high-quality products at competitive prices, with exceptional service.



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Ever-power Schaftkragen Co., Ltd.

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Als einer der führenden Hersteller, Lieferanten und Exporteure von mechanischen Produkten in China, bieten wir Reduzierstücke, Kettenräder, Industrie- und Förderketten, Riemen, Riemenscheiben, Zahnräder, Zahnstangen, Getriebe, Motoren, PTO-Wellen, Taper Lock Bushing, Vakuumpumpen, Schraubenluft Kompressoren und viele andere Produkte. Bitte kontaktieren Sie uns für Details.

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