5x11 Rubber Sealed Ball Bearings (10) 5x11x4 MR115-2RS Includes Ten (10) High Speed Precision Steel 5x11 Ball Bearings. These bearings are perfect for any applications where 5x11x5mm MR115 ball bearings are required. Direct Replacement For: Arrma AR610019, Associated ASC25710, Axial AXA1221, HPI B022, Kyosho KYOBRG031, Losi LOS237002 LOSA6947, Redcat RERH007 RERBS810-066, Tamiya 1150, Traxxas TRA5116 Advantage Ball Bearings are perfect for a variety of applications including: RC Cars, RC Helicopters, Bicycles, Fishing Reels, Robots, Spinners, Inline Skates, Skateboards, Scooters, Tools, Machines, Vacuums, Electric Motors, Nitro Engines, Drones, Yo Yos, and more! Rubber Sealed Ball Bearings have maximum protection, and are ideal for dusty or dirty environments. They protect well against exposure to dust, dirt, and moisture, which can destroy bearings. Advantage Racing Product Bearings have been run by some of the fastest RC Car Racers in the world and have won multiple ROAR US National Championships. Over 250,000 bearings have been sold to satisfied racers all over the world!