World Champion ACER Racing 7x17x5mm Ceramic Ball Bearings.  This is a 7x17mm ceramic ball bearing also known as a size 697 ball bearing. Diamond polished Silicon Nitride (Si3N4) Balls, HSR cage technology and sealed on both sides. Lubricated with lightweight and 100% synthetic ACER Racing SIN Oil instead of thick grease for super fast and super smooth action.  ACER Racing lightweight ceramic ball bearings last longer and spin faster.

 

Not for use inside Nitro Engines. For Nitro engines we offer a 7x17x5mm Ceramic Engine Bearing in our eBay store eBay item 261750155582

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