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混合式陶瓷轴承的性能优异，是一种应用前景十分广阔的新型高速轴承。但是，目前对其研究还不够充分，特别在这种轴承的润滑试验研究方面几乎还是个空白，因此，对混合式陶瓷轴承进行了运行和润滑试验，并且利用扫描电子显微镜对试验后的陶瓷球表面进行了观察。在同种润滑剂润滑下的温升对比试验表明，陶瓷球轴承的温升比钢球轴承的低，可见前者的高速运行性能比后者的好；在其它试验条件相同的情况下，利用２０＃机械油和含３％（ｗｔ）超细石墨金刚石粉的２０＃机械油等６种润滑剂分别进行的润滑试验表明，润滑剂的粘度越大，陶瓷球轴承的温升越高；纯水对陶瓷球轴承的润滑性能良好，利用其润滑时的轴承温升很低。这种结果除与水的粘度非常低有关以外，还同Ｓｉ３Ｎ４陶瓷与水发生的摩擦化学反应有关。扫描电子显微镜观察发现，在含３％（ｗｔ）超细石墨金刚石粉的２０＃机械油润滑下，试验后的个别陶瓷球表面有相当深的麻坑出现，这是陶瓷球毛坯内部气孔等缺陷经过金刚石微粉“抛光”作用而显露出来的结果。
Hybrid ceramic bearing performance is excellent, is a very broad application prospects of new high-speed bearings. However, its research is not enough at present, especially in the lubrication test of this kind of bearing is still almost a blank, therefore, hybrid ceramic bearings were run and lubrication test, and the use of scanning electron microscope on the test after the ceramic ball The surface was observed. Compared with the ball bearing, the temperature rise of the same ball bearing is lower than that of the ball bearing under the same lubricant lubrication. It can be seen that the former has better high speed running performance than the latter. Under other conditions of the same test, # Mechanical oil and 20% mechanical oil containing 3% (wt) ultrafine graphite diamond powder, respectively, showed that the higher the viscosity of the lubricant, the higher the temperature rise of the ceramic ball bearings. The pure water Lubrication of ceramic ball bearings good performance, the use of lubricated bearing temperature rise is very low. In addition to this result, in addition to the very low viscosity of water, it is also related to the tribochemical reaction of Si3N4 with water. Scanning electron microscopy showed that the surface of the individual ceramic balls after the test was lubricated with 20 # mechanical oil containing 3% (wt) ultrafine graphite diamond powder, and the surface of the individual ceramic balls appeared quite deep pits, which were defects such as stomata inside the ceramic blank After the diamond powder “polished” the role of the revealed results.