A few days ago, a friend reached out to me for help. He was facing frequent maintenance issues with the angular contact ball bearings on his machine tools, often needing to dismantle and service them every two months, sometimes even replacing them.
Upon further investigation, I discovered that he uses a large amount of cutting fluid during machining, and some of the cutting debris tends to splash into the angular contact ball bearings of the spindle, carrying small impurities with it.
In such scenarios, it's crucial to opt for angular contact ball bearings with seals, specifically designed for such relatively harsh working conditions.
Not only can they alleviate your maintenance concerns, but they can also extend the lifespan of the bearings.