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Drive Line Analysis for Tooth Contact Optimization of High-Power Spiral Bevel Gears - June/July 2011

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Archive > 2011 > June/July 2011 > Drive Line Analysis for Tooth Contact Optimization of High-Power Spiral Bevel Gears

The article "Drive Line Analysis for Tooth Contact Optimization of High-Power Spiral Bevel Gears" appeared in the June/July 2011 issue of Gear Technology.

Summary
In the majority of spiral bevel gears, spherical crowning is used. The contact pattern is set to the center of the active tooth flank and the extent of the crowning is determined by experience. Feedback from service, as well as from full-torque bench tests of complete gear drives, has shown that this conventional design practice leads to loaded contact patterns, which are rarely optimal in location and extent. Oversized reliefs lead to small contact area, increased stresses and noise, whereas undersized reliefs result in an overly sensitive tooth contact.

Keywords
spiral bevel gears, tooth contact analysis, TCA, LTCA, crowning, tooth stress, noise, power density

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