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Linear Guides RCA: Electrolytic Corrosion

2020-09-29T13:46:51+00:00Sep 29, 2020

Damage Condition

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

Source: NSK

By Cindy · Bearing design & application specialists

This article is prepared by the SINO BEARINGS (Sinoti Tech) engineering team, based on published bearing standards (ABEC / ISO P0–P2), material datasheets, and field application experience across industrial, food, medical and aerospace uses. For manufacturer background, certifications and facilities, see our About page.

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