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Unread 04-02-2007, 12:09
Gary Bonner Gary Bonner is offline
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Join Date: Jan 2002
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BaneBots 56mm Gearbox - Second Stage Sun Seizing

As we anxiously await the double D solution, we were running our base around yesterday and one of the gearboxes locked up. The other has intermittent high-friction spots. We are using the two CIM adapter and the 16:1 conversion. Upon disassembling the locked gearbox, we found that the last sun gear had seized on the output shaft. In the working gearbox, the last sun gear can spin, but not freely. The end of the output shaft was rough, and a groove was worn inside the sun gear. Is it necessary for the sun gear to ride on the output shaft? Can the end of the shaft, just above the double D, be cut off?