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Gear Geometry

Home » Topics » Design » Gear Geometry
  • Article legacy id 10905 featured image
    December 11, 2020

    FVA Examines Load Capacity Calculations to Determine Cylindrical Gear Geometry

    FVA has released its latest tech blog on the advantages of local load carrying capacity approaches compared to standardized methods. ...
  • March 1, 2015
    By Brendan Bijonowski

    A Practical Approach for Modeling a Bevel Gear

    The geometry of the bevel gear is quite complicated to describe mathematically, and much of the overall surface topology of the tooth flank is dependent on the machine settings and cutting method employed. AGMA 929-A06 — Calculation of Bevel Gear Top Land and Guidance on Cutter Edge Radius — lays out a practical approach for predicting the approximate top-land thicknesses at certain points of interest — regardless of the exact machine settings that will generate the tooth form. The points of interest that AGMA 929-A06 address consist of toe, mean, heel, and point of involute lengthwise curvature. The following method expands upon the concepts described in AGMA 929-A06 to allow the user to calculate not only the top-land thickness, but the more general case as well, i.e. — normal tooth thickness anywhere along the face and profile of the bevel gear tooth. This method does not rely on any additional machine settings; only basic geometry of the cutter, blank, and teeth are required to calculate fairly accurate tooth thicknesses. The tooth thicknesses are then transformed into a point cloud describing both the convex and concave flanks in a global, Cartesian coordinate system. These points can be utilized in any modern computer-aided design software package to assist in the generation of a 3D solid model; all pertinent tooth macrogeometry can be closely simulated using this technique. A case study will be presented evaluating the accuracy of the point cloud data compared to a physical part.
  • November 1, 2014

    Small-Module Gear Design

    Gears with a diametral pitch 20 and greater, or a module 1.25 millimeters and lower, are called fine-pitch or low-module gears. The design of these gears has its own specifics.
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    Industry News

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    Fatigue Aspects of Case Hardened Gears

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    ISO 6336-5: Strength and Quality of Materials

  • May 1, 1997

    Eddy Current Examination of Gear Systems

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    By Robert Errichello

    The Lubrication of Gears - Part 1

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    Technical Calendar

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Blog Posts

  • June 1, 2021
    By Dr. Christof Gorgels

    Hybrid Metrology with Klingelnberg

  • November 20, 2019
    By Matthew Jaster

    Liebherr and Morat Swoboda Collaborate on E-Mobility Solutions

  • October 3, 2019
    By Charles D. Schultz

    Toying with Old Recipes

  • August 15, 2019
    By Charles D. Schultz

    A Global Gear Community

  • July 30, 2019
    By Charles D. Schultz

    Pieces of a Puzzle

Read More

Authors

  • Charles schultz
    Charles D. Schultz
  • Matthew jaster
    Matthew Jaster
  • Dr. Christof Gorgels
  • Markus Finkeldey
  • Robert errichello
    Robert Errichello
  • Brendan bijonowski
    Brendan Bijonowski
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