New resin composites were developed using RB ceramics (RBC) powder as fillers, and the friction and wear properties of the resin/RBC composites were studied. This resin composites were developed by mixing RB ceramics powders with polyamide 66 (PA66) with injection molding. Under both dry and oil lubricated conditions, the friction coefficient for the PA66/RBC composite took smaller value than that for the PA66, while the specific wear rate of the PA66/RBC composite took significantly smaller value. The dependency of friction coefficient on the sliding velocity for the PA66/RBC composite was smaller than that for the PA66 under both dry and oil lubricated conditions. This is an abstract of a paper presented at the World Tribology Congress (Kyoto, Japan 9/6-11/2009).