Change to higher anti-acid material or better surface treatment
Review the lubrication system
Review the storing condition
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Corrosion at Ball Slider
Part: Ball slider Symptom: Corrosion on raceways Cause: Rusted raceways and balls caused by chlorinated cutting coolant penetrating the protective covers and attaching the ball slide
Corrosion at Balls
Part: Balls Symptom: Corrosion on balls Cause: Aggressive cutting coolant attacked the ball surface