A spur gear of 36 teeth is cut on a single-thread hob having a diameter of 90 mm. The cutting speed is 50 m/min. Calculate the rotational speed of the spur gear. In deriving Eq XXXXXXXXXXit was...


A spur gear of 36 teeth is cut on a single-thread hob having a diameter of 90 mm. The cutting speed is 50 m/min. Calculate the rotational speed of the spur gear. In deriving Eq. (8.20) it was assumed that the friction angle,
, was independent of the shear angle,
. Is this assumption valid? Explain.









Dec 11, 2021
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