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This is a rear bearing from Boca Bearings designed to fit the O.S. MAX RZ-V01b, RZ-V99b, RB Concepts S7/WS7/WS7II and the Novarossi N21BF off-road competition buggy engines. This bearing also fits any OS, Novarossi or RB Concepts engines that require a rear bearing with the dimensions 13mm inner, 25mm outer and 6mm thick. This bearing is open to allow oil to lubricate the bearings during use. This bearing will also fit any other .21 competition buggy engine that uses the same bearing dimensions.
NOTE: This bearing should be installed so that the balls face
the rear of the engine (towards the backplate), in order to allow
proper lubrication.
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