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Four Common Types of Bearings

Bearings are highly engineered, precision manufactured components that allow machines to move at extremely high speeds and carry significant loads with ease and efficiency.

Bearings must be able to provide high precision, reliability and durability, as well as the ability to rotate at high speeds with minimal noise and vibration.

Applications for bearings include automobiles, aircraft, computers, construction equipment, machine tools, DVD players, refrigerators, and ceiling fans.

If something twists, turns or moves, it may have something to do with it.

 

Bearing Types and Applications

There are many different types of bearings, each with specific characteristics suited to a particular application. The following are the four most common types of bearings. 

 

Four Common Types of Bearings

 

1. Ball bearings. 

✱ Rolling function provided by a ball

✱Low friction, high speed, light to medium loads

✱ Light and general purpose machine applications

Commonly used in applications such as fans, roller blades, wheel bearings and under the hood of automobiles

 

2. Cylindrical and needle roller bearings.

Rolling function is provided by some kind of cylinder. May also be referred to as needle roller bearings (much longer than the diameter)

✱ Low friction, medium to heavy radial load 

Commonly used in general machine applications, including gearboxes and transmissions, machine tools and construction equipment.

 

3. Tapered roller bearings.

Tapered roller bearings for combined axial and radial loads, such as wheel applications on trucks

 

Commonly used in heavy industry, truck and wheel applications with combined radial and axial loads. Some examples are manual transmissions, gearboxes, power generation and other process equipment.

 

4. Spherical roller bearings.

✱ Roller bearings with barrel-shaped rollers.

✱ Medium friction, medium to heavy load and misalignment capability

✱ Typically used in high load applications where the shaft is not aligned with the housing.

 

Commonly used in gearboxes, conveyors, pulp and paper machines, and other process equipment.

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