• The Avid 14x25.8x6 Ceramic Engine Bearing offers the maximum performance and reliability to your racing engine at an unbeatable price. The bearing specs are Abec5, 9 G3 Si3N4 Ceramic Balls, PA66 with 30 Glass Fiber Cage, and Chrome Steel 52100 Rings. It has no seals to allow for proper lubrication from the oil in your fuel. A ceramic engine bearing can allow most RC engines to spin an extra 500 rpm with less drag and the life of the bearing is far greater over a steel bearing. Another benefit to ceramics is the weight difference in the balls allowing for less rotating mass.

• If your engine is not listed below, please check with your manufacturer first to see what size you require.

• Sold individually

Engines Used In

• FX engines: K5 DC, K303, K502, K303L, GT501

• Novarossi: S21 P5XLT, S21 P3XS, 2012 Plus 21-4BTT, Plus 21-4T, Plus 21-4C Team, Plus 21-4, Plus 28-3, Plus 28-5T, Plus 28-7T, Plus 28-3 / 28-5 / 28-7 RT, Plus 28-3/PS, Nitrotec, P5X, P5XS, 528X, 421BS, 821B, C6, RX21WC-2008 , RX221P , RX321P , S821B , S421BSX / BSNX , RX21P5XS / XST , Plus 28 3 / 5T / 7T , Plus 28-3RT , Plus 28-3PS , N21B-200 BF , N21B-200 BF/RT , N21-3T , N21-3T/RT

• RB: Buggy10, Cross10, Truggy10, TM928, RT 9

• Ultimate: M5, M8

Tips

• Diagnosing: If you hold the head of the engine with your hand and a rattle sound dissapears then you have a worn out rear bearing. The risks/issues of a bad rear bearing are not holding a tune, crank can get worn, and worst of all the bearing comes apart and eats your piston/sleeve.
• Installation: The best way to install is to use a bearing puller/installer, OFNA makes a very affordable one. If you place the new bearing in the freezer for 15 minutes it will be easier to install.
• Positioning: For proper lubrication, face the open side where you can see the balls to the rear of the motor (not the clutch side).
• Break In: For the first run of these bearings, Avid suggests that you fatten your motor up on the high-end needle so the ceramic balls will seat instead of skidding them.