Everything You Need to Know About Different Types of Bushings

Bushings are components used to reduce friction and provide support in various mechanical applications. They come in different types based on their design, material, and specific use. Here are some common types of bushings:

1. Sleeve Bushings (Plain Bearings)

Sleeve bushings, also known as plain bearings, are cylindrical-shaped bushings with a simple design. They consist of a smooth inner surface and an outer surface that fits into a housing or bore. Sleeve bushings provide a low-friction surface for rotating or sliding applications.

2. Flanged Bushings

Flanged bushings have an additional flange at one end, which acts as a built-in washer or spacer. The flange helps to position and retain the bushing within the housing or assembly, eliminating the need for separate washers.

3. Thrust Washers

Thrust washers, also referred to as thrust bearings or thrust bushings, are designed to handle axial (thrust) loads. They are often used in applications where there is relative motion between two components along the axis.

4. Tapered Bushings

Tapered bushings are used to mount components, such as pulleys or sprockets, onto shafts. They have a tapered inner bore that matches the taper of the shaft. Tapered bushings provide a secure and precise fit, allowing for easy installation and removal.

5. Split Bushings

Split bushings, also known as split bearings or split sleeve bushings, are designed for easy installation and replacement. They have a split design that allows them to be opened and closed around a shaft or housing without the need for disassembly.

6. Oil-Impregnated Bushings

Oil-impregnated bushings, also called oilite bushings, are self-lubricating bushings made from a porous metal material. These bushings contain small pores that are impregnated with oil, providing a continuous lubrication source. They are commonly used in applications where maintenance-free operation and reduced friction are required.

7. Spherical Bushings

Spherical bushings, also known as spherical plain bearings, have a spherical inner ring and an outer ring with a matching spherical surface. This design allows for angular misalignment and accommodates both radial and axial loads. Spherical bushings are commonly used in applications with oscillating or tilting motions.

These are just a few examples of the types of bushings available. The selection of the right type of bushing depends on factors such as the specific application, load requirements, environmental conditions, and desired performance characteristics.