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Ceramic Bearing 30X42X7 Brackets Bearings Review

1

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Terrible

Revainrating 1 out of 5  
Rating 
1.0
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Description of Ceramic Bearing 30X42X7 Brackets Bearings

Balls Material: Black Si3N4 Ceramic/Cage: Nylon Cage. Commonly used in hubs, bottom brackets. ID=30mm OD=42mm W=7mm. A ceramic hybrid bearing is a combination of ceramic balls and bearing quality steel rings. Which combine hardened steel rings with rolling elements made of high-performance ceramic materials, are an increasingly popular option for demanding applications.

Reviews

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Type of review

Revainrating 1 out of 5

The inner race is rusting!

I installed this bearing about 1500 miles ago. I was in the middle of some serious tuning and noticed the crank didn't just slide out as usual. I had to hit it with a rubber mallet. As soon as I pulled it out, I noticed that the inner ring of this bearing was rusting. Apparently this camp is pure junk. It seems that everything is smooth, but rust is unacceptable. Yes it was cheap though.

Pros
  • Deep Groove Ball Bearing
Cons
  • Doubtful