Hybrid ceramic bearings may be less common, and the main configuration of hybrid ceramic bearings is a combination of inner and outer ring bearing steel / stainless steel + ceramic ball + PA66 / stainless steel retainer + 2RS / ZZ. Hybrid ceramic bearings have the following four advantages in use.
(1), high temperature resistance, ceramic ball thermal expansion coefficient is small, in the high temperature environment will not cause the expansion of the bearing ball due to temperature, which greatly improves the use temperature of the entire bearing, the temperature of the ordinary bearing is about 160 degrees, ceramic ball Can reach more than 220 degrees.
(2), high speed, ceramic ball has oil-free self-lubricating properties, ceramic ball friction coefficient is small, so ceramic ball bearings have a very high rotational speed. Statistics using ceramic ball bearings is the general bearing speed of 1.5 times or more.
(3), long life, ceramic ball can be added without any grease, which means that even if the grease is dry, the bearing can still work, thus avoiding the premature bearing damage caused by the dry grease in the ordinary bearing. According to us The test and some customer feedback use the ceramic ball after the bearing life is 2-3 times that of ordinary bearings.
(4) Insulation. Bearings made of ceramic balls can insulate the inner and outer rings of the bearing. Because the ceramic balls are insulators, the ceramic ball can be used between the inner and outer rings of the bearing to achieve the insulation effect. Can be used in a conductive environment. This is also the biggest advantage of hybrid ceramic bearings.