Three types of cages for SFC bearings

Bearings are a common mechanical component used to support and rotate shafts in machines. As an important component of SFC bearings, the cage plays a role in fixing the position and separating the rolling elements, while also bearing the load of the bearing. The following will introduce three types of cages for SFC bearings, their respective characteristics, and different application environments.

Conventional steel plate holder

The conventional steel plate cage is the most common type of bearing cage, which is formed by stamping two or more steel plates. Its characteristics are simple production, low cost, and suitable for most situations with low loads and slow speeds. However, due to the low strength of the steel plate cage, it is prone to deformation and fracture, and its reliability is slightly poor under harsh conditions such as high load and high speed. Therefore, conventional steel plate cages are mainly suitable for some small and medium-sized bearings and low load, low speed application environments.

Copper cage

The copper cage is made of precision machined copper alloy material, which has good strength and toughness and is suitable for medium to high loads and high speeds. Compared to conventional steel plate cages, copper cages can better withstand impact and vibration loads and have a longer service life. However, the cost of copper cages is relatively high, and the manufacturing process is also complex. Therefore, copper cages are mainly used in high-precision bearings, high-speed motors, automobiles and other fields.

Polyimide material retainer

The polyimide material cage is made of high-performance plastic materials independently developed by SFC company, which is characterized by excellent heat resistance, corrosion resistance, wear resistance, and strength, and can be applied in various harsh environments