Pits like spot corrosion on balls and raceways.

　　

　　Possible Causes

　　

　　Caused by an electric current, creating sparks through a thin oil film, between the contact points of the raceways and balls while a linear guide was in operation (Electric potential difference between a rail and a ball slide)

　　

　　Countermeasures

　　

　　Provide an electric circuit so that the current does not pass through the linear guides

　　

　　Electrolytic Corrosion

　　

　　Part: Electrolytic corrosions on a raceway of rail

　　

　　Symptom: Worn black pits

　　

　　Cause: Sparks due to an electric current between rail and a ball slide

　　

　　损坏情况

　　

　　球和滚道上的点蚀。

　　

　　可能的原因

　　

　　由电流引起，在直线导轨运行时，通过薄薄的油膜在滚道和滚珠的接触点之间产生火花（导轨和滚珠滑块之间的电位差）

　　

　　对策

　　

　　线性导线不能提供电流通过电路

　　

　　电解腐蚀

　　

　　零件：钢轨滚道的电解腐蚀

　　

　　症状：黑点磨损

　　

　　原因：导轨和滚珠滑轨之间的电流产生火花