Selection of Bearing Type

Bearings come in a wide variety of types, sizes, shapes and dimensions depending obn their mode of operation, speed, load and motion. The most common factor to consider in bearing selection is a bearing that will enable the machine or device to perform effectively. For more information on the different types of industrial bearings available in the market.

Selection of Bearing: Points to Consider
While there are no hard-and-fast rules in selecting a bearing, there are certain things that are required to be be kept in mind, which we are discussing below:

Operating conditions and environment
Gather an accurate and comprehensive knowledge of which part of the machine or equipment and the operating requirements and environment. One may require following data:

Performance Requirements
The required performance capacity and function demands are defined in accordance with the bearing application and operating conditions.

Bearings Arrangement Selection
Shaft assemblies generally require two bearings to support and locate the shaft both radially and axially relative to the stationary housing. These two bearings are called the fixed and floating bearings.

Fixed bearing takes both radial and axial loads and "locates" the shaft axially in relation to the housing. The floating bearing relieves stress caused by expansion and contraction of the shaft and also allows for misalignment caused by fitting errors.

 

Bearings selection which can support axial loads in both directions are considered most suitable as fixed bearings. In floating bearings the axial displacement can take place in the raceway or along the fitting surfaces. There is also the "cross location" arrangement in which both bearings act as fixing and non-fixing bearings simultaneously. This arrangement is used mainly in comparatively short shaft applications.

Tags:- Bearing Types Selection, Bearings Selection & Arrangement

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