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Dynamic analysis of reliable, lightweight, high speed and high power density epicyclic gears requires special effort to predict their maximum power transmitting capacity. Focuses on single-stage epicyclic gears of this category. Presents an overview of key design considerations with...
This paper reports on surface fatigue testing. The goal was to develop models for predicting wear. As part of this goal, the study reports on developing an understanding of the stresses and wear predictors using FZG tests. Since the focus was on micropitting, the first tests used the method...
Encouraging results from a prototype micropitting test using specially designed gears (20:30 tooth ratio, tip relief, and a 560 mm radius pinion crown) on the standard FZG test rig were reported at the 1998 AGMA Fall Technical Meeting. Subsequently, the authors' company purchased...
This paper will compare and contrast these four documents. What's new, what's different and what's hidden in the footnotes. Knowing the differences will be important to the users of these documents
This standard presents a method for measuring steady state vibration of a gear unit. Types of instrumentation, measurement methods, and testing procedures for the determination of linear vibration levels for specific types of gear units are provided. Vibration limits at discrete...
This information sheet is a supplement to ANSI/AGMA ISO 1328-1-B14. It provides a code of practice dealing with measurements on flanks of individual cylindrical involute gears, i.e. with the measurement of pitch, profile, helix and tangential composite characteristics. It describes...
The AGMA Mill Gearing Committee completed AGMA 6014 for grinding mill and kiln service gear rating. The approach the committee took in the development of this standard to determine the content is reviewed. Through a review of previous standards, the performance history...
This information sheet describes many of the ways in which powder metal, PM, gear teeth can fail and recommends methods for reducing PM gear failures. It provides basic guidance for those attempting to analyze PM gear failures. The information sheet should be used in...
The current AGMA standards provide a lot of information about the calculations of loose gears and gearbox components - shafts, splines, keys, etc. These recommendations are based mostly on the "traditional" methods of mechanical engineering, found in many classical textbooks and...
This standard provides lubricant classifications, guidelines for minimum performance characteristics, and generalized application and servicing guidelines for both open and enclosed metallic gearing that has been designed and rated in accordance with applicable AGMA Standards. The...
Rating formulas This standard provides a method by which different gear designs can be compared. The formulas in this standard are intended to establish a uniformly acceptable method for calculating the pitting resistance and bending strength capacity of generated straight bevel, zerol bevel...
The risk of gear tooth scuffing in commercial vehicle transmissions has gained more attention because of increasing demand for fuel-efficient powertrain systems in which diesel engines run at lower speeds, power density is higher, and lubricants are modified to improve efficiency and...
This standard is applicable to enclosed gear drives including configurations of parallel, concentric, and right angle shafts. It includes foot mounted, shaft mounted, screw conveyor drives, and gearmotors. These enclosed drives utilize spur, helical, herringbone, double helical, or bevel...
This document describes test methods and recommended documentation practices for determining the load carrying capacity, wear performance, and other characteristics of plastic gears. Types of tests covered This information sheet describes test methods for plastic gears related to...
This standard is applicable to enclosed gear drives including configurations of parallel, concentric, and right angle shafts. It includes foot mounted, shaft mounted, screw conveyor drives, and gearmotors. These enclosed drives utilize spur, helical, herringbone, double helical, or bevel...
