Both range of motion in the direction from the roots to the top of the cutting speed v s. after finished machining a grooved teeth, gears 2 is turning away a step t and the next tooth Groove was machined, so the gears are machined finished after a spin. Before stopping the cutting knife, journey is head out to the cutting blade is not instant coffee on the side of the tooth.The taper gear shaping straight teeth according to the old style was based on the aforementioned principles. But according to that principle, it is necessary to have a large number of replacement gears 2 according to the angle of the top teeth, legs taper has a false tooth prôfin number due to the gap between the teeth of the gear not rolling and flattening wheel. So in the new machines, people use alternate gears system structure like the diagram on fig. 2125.
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