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siders BS , the draft ISO standard , and AGMA. Since this review was written, AGMA introduced. AGMAB88, although this new. Find the most up-to-date version of AGMA at Engineering AGMA , Geometry Factors for Determining the Pitting Resistance and Bending AGMA , AGMA Standard for Rating the Pitting Resistance and .

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The procedure is valid for generated root fillets, which are produced by both rack and pinion type tools. Miner to assess the effects of cumulative fatigue damage under repeated and variable intensity loads. Because an analytical method for calculating the Bending Strength Geometry Factor, Jis now available, Discounted member price: Pitting Resistance Geometry Factor, I A mathematical procedure is described to determine the Geometry Factor, Ifor internal and external gear sets of spur, conventional helical and low axial contact ratio, LACR, helical designs.

However, agreement could not be reached on the total content.

These values are then used in conjunction with the rating procedures described in AGMA B88, Fundamental Rating Factors and Calculation Methods for Involute Spur and Helical Gear Teeth, for evaluating various spur and helical gear designs produced using a generating process. Due to the number of requests for this paper, it was decided to publish the data in the form of an Information Sheet which became AGMA 218.001 However, information is also contained for determining geometry factors for other conditions and applications.

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SCOPE This part of ISO specifies the information and standardized conditions necessary for the calculation of the service life or safety factors for a required life of gears subject to variable loading. For dated references, only the edition cited applies.

Item Detail – AGMA B89 (reaffirmed March )

It was commonly used in vehicle gearing design. It was approved as an American National Standard on May 20, The calculation procedure for I was simplified, but the end result is mathematically identical.

For undated references, the latest edition of the referenced document including any amendments applies. Calculation of service life under variable loadwhich was published in August Calculation of surface durability pitting ISO Basic principles, introduction and general influence factors ISO Calculation of tooth bending strength ISBN: The tables for geometry factors contained in this Information Agmq do not cover all tooth forms, pressure angles, and pinion and gear modifications, and are not applicable to all gear designs.

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AGMA 218.01

It is hoped that sufficient aggma factor data is included to be of help to the majority of gear designers. Geometrical definitions ISO Suggestions for improvement of this standard will be welcome.

Quantity must be a positive whole number. Quantity must be a positive whole number. The method was developed for aircraft part design and tested for aluminum alloys by Miner, but was subsequently verified for steel by others.

Foreword This Information Sheet, AGMA B89, was prepared to assist designers making preliminary design studies, and to present data that might prove useful for those designers without access to computer programs. While the method is presented in the context of ISO and calculation of the load capacity of spur 28.01 helical gears, it is equally applicable to other types of gear stress.