资料来源 : pyDict

滚柱轴承

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Roller bearing \Roll"er bear"ing\ (Mach.)
   A bearing containing friction rollers.

资料来源 : WordNet®

roller bearing
     n : bearings containing small metal balls [syn: {ball bearing},
         {needle bearing}]