What are the characteristics of the double-row spherical roller design of self-aligning ball bearings

The double-row spherical roller design of self-aligning ball bearings is at the heart of the bearing's unique performance. By using double rows of spherical rollers, self-aligning ball bearings can achieve automatic alignment under high-speed rotation and offset loads, maintaining relatively smooth operation.

Structure of double row spherical rollers

Number and distribution of rollers

The rollers of self-aligning ball bearings are divided into two rows, distributed between the inner ring and the outer ring. Each row of rollers is evenly distributed on the annular raceway, forming a spherical roller ring. This structure helps improve the load bearing capacity and self-aligning performance of the bearing.

free scrollability

Each spherical roller is able to roll freely, which means that they can automatically adjust their position according to the direction and size of external loads. This free rolling property allows the bearing to adapt to loads in different directions and maintain relatively smooth operation.

self-aligning mechanism

Axial self-aligning

The design of double rows of spherical rollers allows self-aligning ball bearings to automatically adjust when subjected to axial offset loads. When axial force acts on the bearing, the spherical rollers will adjust their position accordingly to maintain the relative stability of the axis and prevent problems caused by axial deflection.

Radially self-aligning

In the radial direction, due to the use of double rows of spherical rollers, the bearing can effectively adapt to radial offset loads. The free rolling nature of the rollers allows the bearings to be flexibly adjusted to maintain a balance of radial forces and ensure the stability of the entire system.

High speed rotation performance

The design of double-row spherical rollers has an important impact on the performance of bearings under high-speed rotation conditions. Because the spherical rollers can evenly distribute the load and have free rolling properties, the bearings can reduce vibration and friction when rotating at high speeds and improve the smooth operation of the bearings.

load distribution uniformity

The double-row spherical roller design helps achieve uniform load distribution within the bearing. Each spherical roller bears part of the load and adapts to external loads through free rolling, thereby reducing the local load between the roller and the raceway and extending the service life of the bearing.

Performance advantages

The double-row spherical roller design enables self-aligning ball bearings to perform well under complex working conditions. Its self-aligning performance, high-speed rotation performance and load distribution uniformity provide key advantages in various applications, ensuring system reliability and stability.

Application areas

Due to the unique performance of the double-row spherical roller design, self-aligning ball bearings are widely used in mechanical equipment that need to adapt to axial and radial offset loads, such as wind turbines, vibration equipment, and high-speed transmissions.