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In single row angular contact ball bearings, the basic static load relates to the: 
  • a)
    full radial and partial axial component of the load
  • b)
    axial component of the load
  • c)
    full axial and partial radial component of the load
  • d)
    radial component of the load
Correct answer is option 'A'. Can you explain this answer?
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In single row angular contact ball bearings, the basic static load rel...
Basic Static Load in Single Row Angular Contact Ball Bearings

The basic static load in single row angular contact ball bearings refers to the load that the bearing can withstand without permanent deformation or damage. It is an important parameter to consider when selecting bearings for applications that involve static loads.

Understanding Angular Contact Ball Bearings

Angular contact ball bearings are designed to withstand combined radial and axial loads. They have raceways in the inner and outer rings that are inclined relative to the bearing axis. This design allows the bearings to support both radial and axial loads simultaneously.

Load Components in Single Row Angular Contact Ball Bearings

In single row angular contact ball bearings, the load can be divided into two components:

1. Radial Component: The radial component of the load is the force acting perpendicular to the bearing axis. It is the load that is applied to the bearing in a direction parallel to the shaft.

2. Axial Component: The axial component of the load is the force acting parallel to the bearing axis. It is the load that is applied to the bearing in a direction perpendicular to the shaft.

Relationship between Basic Static Load and Load Components

The basic static load rating of a single row angular contact ball bearing is defined as the static radial load that causes a total permanent deformation of the ball and raceway contact surfaces equal to 0.0001 of the ball diameter.

Since angular contact ball bearings are designed to withstand combined radial and axial loads, the basic static load rating takes into account both the radial and axial load components. Therefore, the correct answer is option 'A' - the full radial and partial axial component of the load.

This means that the basic static load rating indicates the maximum load that can be applied to a bearing without causing permanent deformation, taking into consideration both the radial and axial forces acting on the bearing.

By considering the full radial and partial axial component of the load, the basic static load rating provides a comprehensive measure of the bearing's load-carrying capacity and ensures that the bearing can safely withstand the anticipated loads in a static application.
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In single row angular contact ball bearings, the basic static load rel...
Bearing Loads
  • Magnitude of Load
    • This is normally the most important factor in determining the size of the bearing.
    • Generally, roller bearings can carry greater loads than ball bearings of the same external dimensions.
    • Ball bearings are mostly used to carry light and medium loads, while roller bearings are often the only choice for heavy loads and large diameter shafts.
  • Direction of load
    • Cylindrical roller bearings having one ring without flanges and needles roller bearings can only carry radial loads.
    • Other types of radial bearings can carry both radial and axial loads.
Single row angular contact ball bearing
  • In angular contact ball bearings the line of action of the load, at the contacts between balls and raceways, forms an angle with the bearings axis.
  • The single row bearing is of non-separable design, suitable for high speeds, and carries an axial load in one direction only.
  •  In single row angular contact ball bearings, the basic static load can carry full radial and partial axial component of the load
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