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Helical Gears

Root cause for noise excitation in geometrically-accurate (perfect) parallel-axes gearing

Gears are extensively used to transmit a rotation from a driving shaft to a driven shaft. Depending on the gear […]

Methods to Determine Form Diameter on Hobbed External Involute Gears

In custom designs of external spur or helical gears, designers generally prefer a lower form diameter for greater transverse contact […]

Southern Gear & Machine, Inc.

THE FINEST AEROSPACE, DEFENSE, INSTRUMENT, PRECISION AND COMMERCIAL GEARING SOUTHERN GEAR AND MACHINE, INC. began operations in 1957. It grew […]

Profile Relief and Noise Excitation in Helical Gears

Gear noise results from the gear mesh dynamic forces that are transmitted through the support shafts and bearings to the […]

Reducing Distortion in Heat-Treated Gears

Power transmission gear manufacturing for critical industrial applications (Figure 1) requires an understanding of many factors, including both heat treat […]

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