Bearing Components and Their Functions

Description Of Bearing Components

Bearing Components and Their Functions refers to the various components that make up a bearing system used to support and enable rotational or linear motion in a machine or mechanical device. Bearings are used to reduce friction and wear between two moving parts, as well as improve the operational efficiency of mechanical systems.

Bearings Components and Their Functions
Bearings Component

The main bearing components include balls, rollers, inner rings, outer rings, and lubricants, each of which has a specific function to ensure optimal performance. Bearings are very important machine element components because of their function to support a shaft so that the shaft can rotate without experiencing excessive friction.

 

Each part of the bearing has its own function and role. Here are the functions of each part that you need to know.

Outer Ring and Inner Ring Raceaway

As the name implies, the outer ring is a bearing component that is located at the very outside while the inner ring is located on the inside of the bearing. These two rings function to hold the ball so that its rotation is always in the same place.

The material often used for both rings comes from hard materials such as steel or metal with a chromium coating, because the strength of the bearing material is affected by the load to be received and the service life of the bearing itself.
However, the outer ring & inner ring are also sometimes made of other lighter weight materials such as ceramic or plastic. However, the use of lightweight materials is not suitable for placement at high temperatures and pressures, so care must be taken before choosing bearings with these materials.

Bearing Components and Their Functions
Outer Ring and Inner Ring

Rolling Ellements

In the inner bearing there is an element that can rotate. Usually this element has a variety of shapes such as ball, roller / cylinder, cone or hard needle. This element moves and is in direct contact with the outer ring and inner ring and will move according to the path when the shaft rotates.

Bearing Components and Their Functions
Rolling Ellements

Cage

Cage or house that functions to maintain the distance between the ball or cylinder so as not to collide or rub against each other. So that the bearing rotation becomes smooth and smooth.

Bearing Components and Their Functions
Cage

Seal

Seals or covers are not present in all bearings. There are some that don’t use it. But actually the seal has a function that is quite needed, which can avoid the inside of the bearing from dirt, as well as a lubricant that supports the performance of the bearing to keep it smooth. So the selection of bearings with seals is the right choice.
Bearing Components and Their Functions
Seal

Main Functions Bearings

  1. Supports a rotating shaft or axle
  2. Reduces friction
  3. Minimizes wear and tear
  4. Maintain component alignment

Bearings Working Principle

  1. Rolling Friction: Bearings work on the principle of rolling friction, where the rolling elements rotate between the inner and outer rings, thereby reducing the friction that occurs
  2. Lubrication: Lubrication (grease or oil) is essential to reduce friction and wear in bearings.

 

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Source : SKF.com

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