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It is said that “The squeaky wheel
gets the grease.” Ok, but what about gear noise? We talked to three experts with
considerable knowledge and experience
in this area.
There are a number of companies
working to change the way broaching is perceived, and over the past 10 years, they’ve incorporated significant
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Super-reduction hypoid gears (SRH) are
bevel worm gears with certain differences regarding hypoid gears. If two axes are positioned in space and the task is to transmit motion and torque between them using some kind of gears with a ratio above 5 and even
higher than 50, the following cases are commonly known. Tribology Aspects in Angular Transmission Systems, Part VIII.
This article provides an overview of the benefits of using psychoacoustic characteristics for describing gear
noise. And with that, human hearing and the most important psychoacoustic values are introduced. Finally, results
of noise tests with different gear sets aree presented. The tests are the basis for a correlation analysis between psychoacoustic values and gear characteristics.
In this article, the authors calculated the numerical coordinates on the tooth surfaces of spiral bevel gears and then modeled the tooth profiles using a 3-D CAD system. They then manufactured the
large-sized spiral bevel gears based on a CAM process using multi-axis control and multi-tasking machine tooling. The
real tooth surfaces were measured using a coordinate measuring machine and the tooth flank form errors were detected
using the measured coordinates. Moreover, the gears were meshed with each other and the tooth contact patterns were investigated. As a result, the validity of this manufacturing method was confirmed.
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