Spherical roller bearings are a type of rolling bearings designed to withstand substantial radial loads and some axial loads.

The unique feature of spherical roller bearings is their ability to align their centers automatically because the centers of the inner and outer rings can tilt toward the axis. The bearings have a double-row rollers structure, with a spherical raceway commonly found on the outer ring and two raceways tilted at an angle relative to the bearing axis on the inner rings.

This construction allows for automatic adjustment of axis misalignment that may be caused by a deflection or non-concentricity in the shaft or housing. Therefore, spherical roller bearings provide excellent aligning performance and reliability.

The spherical roller bearing boasts excellent properties which make it a reliable and popular choice amongst industrial applications:

• The automatic self-aligning property of the spherical roller bearing allows it to have the ability to adjust its deviation of the axis, maintaining a stable operation even if the shaft or housing is deflected or not concentric. The design of the spherical raceway between the inner and outer rings of the bearing makes it possible. This property greatly reduces the requirement for installation accuracy and prolongs the service life of the bearing.
• The double-row roller structure and the spherical raceway design enable the bearing to maintain stability when bearing heavy loads. Its high load-bearing capacity enhances its ability to disperse the load, effectively reducing the stress concentration of the bearing. Therefore, it can withstand large radial loads together with certain axial loads.
• With its good impact resistance, the spherical roller bearing can exhibit good stability and durability when bearing impact loads. This feature makes it particularly suitable for mechanical equipment that needs to withstand impact loads.
• The inner hole of the spherical roller bearing can be cylindrical and conical. The tapered inner hole design equipped with a tightening or a withdrawal sleeve can be easily assembled on the smooth shaft or the stepped machine shaft. The design is flexible enough to adapt to a variety of installation requirements and improve its applicability.
• The spherical roller bearing can maintain a stable operation, reducing vibration and noise, resulting in an improvement in the operating efficiency and service life of mechanical equipment. Moreover, it reduces noise pollution to the surrounding environment.
• Lastly, easy maintenance is guaranteed. Its relatively simple design makes it easy for disassembly and installation, reducing downtime and maintenance costs when replacement or maintenance is needed.