Outer ball bearings, also known as outer spherical bearings, are a special type of bearings. The outer diameter surface of the outer ring is spherical and has self-aligning properties. This kind of bearing is mainly suitable for bearing combined radial and axial loads, mainly radial loads, but is generally not suitable for bearing axial loads alone.

Outer spherical bearings are widely used in industrial machinery, fans, light-load transmission devices and other fields. For example, outer spherical ball bearings with jackscrews are suitable for through-shafts with poor stiffness and large deflection. They can strictly prevent the intrusion of dirt. They have been filled with an appropriate amount of lubricant before leaving the factory. There is no need to clean or add lubricant before installation. In addition, tapered bore spherical ball bearings can be installed directly on tapered shafts, or mounted on shoulderless smooth shafts with the help of tightening bushings, and the bearing clearance can be fine-tuned.

Specifically, outer spherical bearings are preferred for applications that require simple equipment and components, such as agricultural machinery, transportation systems or construction machinery. In these applications, outer spherical bearings can exert their aligning performance and effectively bear various loads to ensure stable operation of the equipment.

At the same time, the sealing performance of the outer spherical bearing is also one of the key factors in its application. According to different application scenarios, different types of sealing configurations can be selected, such as nitrile rubber single lip seal, single lip seal with dust cover, three-layer lip seal, L4 type labyrinth seal, etc., to adapt to different contamination levels and speed requirements.

External ball bearings are widely used in many fields. Their unique aligning properties and good sealing properties make them an ideal choice for bearing combined radial and axial loads.