Classification of ceramic bearings and ceramic ball bearings

Update:12-10-2019
Summary:

According to the material: ceramic bearings can be divi […]

According to the material: ceramic bearings can be divided into zirconia ceramic bearings, silicon nitride ceramic bearings, composite ceramic materials bearings.

According to the structure: Ceramic bearings can be divided into: zirconia with retainer ceramic bearings, silicon nitride with retainer ceramic bearings, composite belt retainer ceramic bearings. The general ceramic bearing retainer material is made of polytetrafluoroethylene (PTFE) as standard. It can also be made of glass fiber reinforced nylon 66 (GRPA66-25), special engineering plastics (PEEK, PI), stainless steel (SUS316, SUS304). Brass (Cu), etc. Ceramic material cages are still less used due to problems such as pocket processing and forming technology; due to the material limitations of the holders, the zirconia full ball ceramic bearings and silicon nitride balls without cages have been developed for special applications. Full ceramic bearings and composite full ball ceramic bearings.

According to the integrity of the material: the main components of the ceramic bearing mentioned above, the inner and outer rings and the rolling elements are mostly ceramic materials, which are defined as ceramic bearings; if the inner and outer rings of the bearing and the rolling elements are not ceramic materials, we It is defined as a hybrid ceramic bearing. The widely used hybrid ceramic bearing is that the ball is made of ceramic material called ceramic ball bearing, which can be divided into zirconia ceramic ball bearing and silicon nitride ceramic ball bearing. The problems that need to be paid attention to when using ceramic bearings and ceramic ball bearings of different materials and different structures are also different.