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AGMA 14FTM10

Involute Spiral Face Couplings and Gears: Design Approach and Manufacturing Technique

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Organization: AGMA
Publication Date: 1 October 2014
Status: active
Page Count: 9
scope:

Face gears typically have a straight or skewed tooth line and varying tooth profile in normal cross section at different radii from major to minor diameter. These face gears are engaged with spur or helical involute pinions at intersecting or crossed axes.

This paper presents spiral face gears with an involute tooth line and an identical tooth profile in the normal section at any radius. There are two main applications for such face gears. One of them is an alternative solution with certain advantages in performance and fabrication technology to the straight tooth, Hirth, or Curvic flange couplings. Another application is when a face gear is engaged with an involute helical pinion or worm at intersecting or crossed axes.

Potential advantages of spiral face couplings and gears include high power transmission density and highly productive machining of face spiral gears.

The paper describes gear geometry analysis, and design technique of spiral face involute gears with symmetric and asymmetric tooth profiles. It also explains a hobbing method of these gears and tool design specifics, and then illustrates gear and tool design with numerical examples.

Document History

AGMA 14FTM10
October 1, 2014
Involute Spiral Face Couplings and Gears: Design Approach and Manufacturing Technique
Face gears typically have a straight or skewed tooth line and varying tooth profile in normal cross section at different radii from major to minor diameter. These face gears are engaged with spur or...
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