Gear transmission of a cylindrical pinion with a face gear, face gear used in said transmission and method and tool for making the face gear
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United States of America Patent
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Dec 8, 1998
Grant Date -
N/A
app pub date -
Apr 18, 1997
filing date -
Oct 19, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
In a face gear transmission with a cylindrical pinion and a face gear meshing therewith the toothing of the face gear is derived from a theoretical profile (22) of a pinion with an infinitely small thickness by moving the centre of this pinion along an imaginary axis which the coincides with the axis of rotation of the cylindrical pinion. The teeth of the face gear are crowned so as to achieve the required tooth clearance. The shape of the teeth of the face gear is such that upon the movement of the theoretical pinion profile (22) in the direction of the imaginary axis of rotation, starting from a defined diameter between the maximum and the minimum diameter of the toothing of the face gear, the centre of the theoretical pinion profile undergoes a displacement (P.sub.1, P.sub.2) at the same time at right angles to the imaginary axis of rotation in the direction towards the toothing of the face gear.
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