Backlash, a clearance between mating gear teeth, is built into speed reducers to let the gears mesh without binding and to provide space for a film of lubricating oil between the teeth. This prevents ...
An internal gear hub provides multiple gears on a bicycle in an enclosed unit housed within the rear hub. Almost all bikes with gears now feature a derailleur system. But for a long time, internal ...
The causes of gear failure are diverse yet preventable—even tooth degradation and lubrication contamination. Following these ...
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