Definition of a bearing

The bearing is a part that supports the shaft. It can guide the rotation of the shaft or bear the parts that run on the shaft. Bearings can be divided into rolling bearings and sliding bearings. Generally speaking, the bearing refers to the rolling bearings.

1. Definition of rolling bearings

A precision mechanical component that reduces friction loss by converting the sliding friction between a rotating shaft and its bearing seat into rolling friction is known as a rolling bearing. Typically, a rolling bearing consists of an inner ring, an outer ring, rolling elements, and a cage. The inner and outer rings are fitted with several rolling elements, which are kept at a certain distance by the cage to prevent contact and collision, allowing for smooth rolling. Bearings can be classified into single-row, double-row, and multi-row types based on the number of rows of rolling elements.

1) Inner ring, outer ring and rolling body

The rolling part of the inner and outer rings is called the rolling surface. Ball bearing rings.The roll is also known as the channel. Generally speaking, the inner diameter of the inner circle and the outer diameter of the outer circle are respectively installed with the shaft and the outer.The shell is properly fitted. The inner ring and outer ring of the thrust bearing are called shaft ring and seat ring respectively.

2) Rolling elements

Rolling bodies are divided into two categories: balls and rollers. Rollers are divided into cylinders according to their shapes. Roller, tapered roller, spherical roller and needle.

3) Retainer

The cage partially surrounds the rolling elements to keep them at a certain distance in the circumferential direction partition .The cage can be divided into stamping cage, turning cage and forming according to the process. Retention ring and pin retainer. According to the different materials, it can be divided into steel cage, copper cage, nylon cage and powder.Aldehyde resin retainer.