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This is a rubber sealed "Speed" front bearing from ProTek R/C. This bearing is designed to fit the O.S. MAX .21 RG, VZ-B and VZ-B V-Spec off-road competition buggy engines. This bearing will also fit any other .21 competition buggy engine that uses the same bearing dimensions, such as the RB Concepts WS7, WS7II, Top P5 etc. The bearing dimensions are 7mm inner, 19mm outer and 6mm thick. This bearing is sealed to stop fuel leaking out the front of the engine during use.
Dual Front and Rear Seals
These bearings come with seals on both the front and rear of the
bearing. Some people prefer to install the bearing with both seals
intact, however we recommend that you remove the seal from the side of
the bearing that will be going into the engine, to ensure that the
balls in the bearing get the proper amount of lubrication.
ProTek R/C is an A Main Hobbies brand.
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