This is a High quality CERAMIC rear engine bearing. It Fits WERKS, SIRIO, and ORION and Orion PERFORMA engines.  

14.2x25.3x6 ceramic inner engine bearing.  Also fit many other brands  check size before ordering.





Abec rating : ABEC-5 
Cage material: Nylon
Ceramic ball material: G5 Si3N4 Balls
Race material : GCR15 chrome steel

Buyers responsibility to check size before ordering to make sure they are correct for your application.