What Is the Working Principle of Spherical Roller Bearings?

15 Jun.,2022

Spherical roller bearings have two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways that are inclined at an angle to the bearing axis.

 

What is the working principle of spherical roller bearings?

Spherical contact us have two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways that are inclined at an angle to the bearing axis. Spherical roller bearings have good self-aligning performance. When the shaft is bent by force or installed in different heart bearing can still be used normally, spherical adjustment with different bearing size series and different, the general allowed spherical angle for 1 ~ 2.5 degrees. The type of bearing load capacity, in addition to radial load bearing can also withstand the two-way role of the axial load, has a good impact resistance. Generally speaking, spherical roller bearings are allowed to work at a lower speed.

 

What Is the Working Principle of Spherical Roller Bearings?

 

Spherical roller bearings basic working mechanism

The inner ring of the rolling bearing is used to assemble with the journal, and the outer ring is used to assemble with the bearing. Usually the inner ring is rotated with the journal, and the outer ring is fixed. But it can also make the outer ring rotation and the inner ring does not move, or the inner and outer ring rotation at the same time. When the inner and outer ring relative rotation, the rolling body that is in the inner and outer ring rolling between.

The most commonly used single row rolling bearing. According to the number of rolling body, bearing can also be divided into double and multi-row bearing, in the same bearing with two or a number of columns of rolling body. In the bearing collar or shaft, seat collar installed between a number of rolling body, rolling body by the cage evenly spaced apart, cage to prevent the rolling body collision, in order to reduce resistance so that the bearing can achieve higher speed.

 

Classification of Bearings

The classification of bearings is mainly based on the shape of rolling elements, load bearing force and structure form. The structure of rolling bearings generally consists of inner ring, outer ring, rolling element and cage.

 

There are various types of rolling bearings.

However, the most basic structure is composed of inner ring, outer ring, rolling body and cage. Rolling body (steel ball, roller or needle) in the bearing is usually evenly arranged between the two rings with the help of cage for rolling motion, its shape, size, and number directly affect the bearing load capacity and performance.

 

Radial bearing

For the radial bearing, the inner ring usually with the shaft tight fit, and in the shaft together with the operation, the outer ring usually with the bearing housing or mechanical shell hole into excessive fit, play a supporting role. However, in some occasions, there are outer ring running, inner ring fixed support role or inner ring, outer ring are running at the same time.

 

Thrust bearing

For the thrust bearing, with the shaft tight fit and in motion together called axis circle, and bearing seat or mechanical shell hole into excessive fit and support role called seat circle. Rolling body (steel ball, roller or needle) in the bearing is usually evenly arranged in the two rings with the help of the cage for rolling motion, its shape, size and number directly affect the bearing load capacity and use performance. In addition to the rolling body evenly apart, the cage can also play a role in guiding the rotation of the rolling body and improving the internal lubrication performance of the bearing.