红外地平仪固体润滑轴承组件的寿命试验

LIFE TEST OF A SOLID-LUBRICATED BALL BEARING ASSEMBLY USED FOR SATELLITE INFRARED EARTH SENSOR

红外地平仪采用固体润滑滚珠轴承有许多优点，但其寿命令人担心．我们对其进行了６．４×１０７转的试验，试验后进行的解剖分析表明溅射ＭｏＳ２膜的滚珠轴承寿命较长．另外，试验分析表明如果轴承保持架中ＰＴＦＥ含量适当增加有望得到更长的轴承寿命．

There well be many advantages to use the technology of solid lubrication ballbearing in infrared earth sensor. But the durability of solid lubrication must beinspected. The life test which has been discussed in this paper indicated that aproper solid lubrication ball bearing assembly could rotate over 6.4 x 107 rev. Theelements anajysis of bearing race lubriation film showed up that if the rate of PTFEis raised in bearing retainer the lifetime well be longer.