Main features of roller bearings:

Higher load-bearing capacity：

Roller bearings have a stronger load-bearing capacity than ball bearings of the same size. This is because the rolling element (roller) of the roller bearing has a larger contact area with the inner and outer rings of the bearing than the ball, and can withstand higher radial loads and certain axial loads.

Reduce friction and wear：

Roller bearings reduce friction by rolling rather than sliding, so they can significantly reduce friction heat and wear and extend the service life of the bearing.

Suitable for high-load environments：

Roller bearings are particularly suitable for high-load, low-speed working conditions, and are suitable for some industrial equipment that requires large loads, such as motors, automobiles, conveyors, etc.

Strong structure：

Roller bearings are usually strong and durable in structure, suitable for bearing large impact loads, and are widely used in heavy machinery and engineering equipment.

Main types of roller bearings:

Cylindrical roller bearings：

Cylindrical roller bearings are the most common type of roller bearings. The contact surface between the roller and the inner and outer rings is linear, so they have a higher radial load capacity. According to whether there is a retaining ring, cylindrical roller bearings can be divided into cylindrical roller bearings with retaining rings and cylindrical roller bearings without retaining rings.

Application: Widely used in equipment such as motors, mechanical transmission systems, and automobiles that need to withstand large radial loads.

Spherical roller bearings：

The design of spherical roller bearings allows a certain angle change between the inner and outer rings. It has a self-aligning function and can compensate for axial deviations caused by installation errors or uneven bearing force.

Application: Commonly used in heavy machinery, metallurgy, and mining equipment, especially equipment that is greatly affected by the harsh working environment.

Tapered roller bearings：

Tapered roller bearings use tapered rollers, and the contact between the rollers and the inner and outer rings of the bearings is linear contact, which can withstand radial and axial loads at the same time. Tapered roller bearings are usually divided into single-row, double-row, and four-row types. Different types are selected according to the loads that need to be borne.

Application: Widely used in automobile wheels, transmission systems, industrial equipment, etc.

Needle roller bearings：

Needle roller bearings use very long and thin rollers, which allows them to provide a large load capacity in a limited space. They are usually used to carry high radial loads, but can only carry small axial loads.

Application: Commonly used in equipment with relatively small spaces and high load capacity, such as gearboxes, power tools, etc.

Axial roller bearings：

Axial roller bearings are specially designed to carry axial loads (loads along the axial direction), and the contact between the rollers and the inner and outer rings is distributed in the axial direction. They can carry greater axial loads than ball bearings of the same size.

Application: Used in equipment that needs to withstand large axial forces, such as cranes, transportation equipment and heavy machinery.

How roller bearings work:

The working principle of roller bearings is based on rolling friction. The inner and outer rings are reduced by rollers (cylindrical, tapered, needle-shaped, etc.). The rollers bear the load during rotation and roll along the bearing track, avoiding the generation of sliding friction. Because the contact between the rollers and the bearing rings is line contact rather than point contact, roller bearings can share a larger load than ball bearings.