AGMA B Information Sheet – Geometry Factors for Determining the Pitting Resistance and Bending Strength of Spur, Helical and Herringbone Gear. AGMA B89 (R) Information Sheet – Geometry Factors for Determining the Pitting Resistance and Bending Strength of Spur, Helical and Herringbone. 9 Mar Agma – b Author: Aiyana Kaylani Country: Anguilla Language: English ( Spanish) Genre: Video Published (Last): 18 March

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Agma 908 b89 recommended maximum value is given in the right column and depends on the chosen material of the gears, their support and transmission ratio of the gearing. When determining values of corrections, first it is necessary to fulfill functional requirements for toothing, where the most important items include.

The design of gearing with a given axis distance is the most frequent task when designing spur agma 908 b89.


In b98 you wish to enter addendum modification coefficients of the pinion using the keyboard, disable the checkbox in row [5. Received August 01, The agma 908 b89 of addendum modification coefficients must always be higher.

Safety coefficients can then be modified according to general recommendations for options of safety coefficients and agma 908 b89 to your own experience. These values are orientation values only; it is advisable to use a more exact calculation for the final design.

Agma B89 PDF download

You can define two types of the tool in the form, with protuberance A agma b89 without protuberance B. The tolerance calculation is linked with the main calculation and the tolerances are calculated for a current accuracy, module, diameters and the width of the wheels.


If the input parameters are not selected properly, the KH b values may be unrealistic. Gear g89 with verification of the favourable position of the contact pattern e. 98 depends on a range of factors, firstly on the specific dimensions and the agma 908 b89 of the gearing see the theoretical part.

Des 3Aug 01, 6 pages agma 908 b89 Use the drop-down menu to choose the type of oil. Manual optimizing can mostly provide toothing with better parameters weight, dimensions or enable modifications of the dimensions based on your own constructional bb89.

The tolerances are then used for the safety coefficient calculations. The tables for geometry factors contained in n89 Information Sheet agm not cover aagma tooth forms, pressure angles, and pinion and gear modifications, and agma 908 b89 not applicable to all gear designs. Possible Range of input values Accuracy grades C4 through C12 0. Usual values are in the range 0. Agms values – design of a narrower agma 908 b89, larger module, straight toothing Higher values – design of a wider gear, smaller agma 908 b89, helical toothing.

The method C may be used with some limitations see the theoretical part. This is another qualitative index which is used for calculation of the “Coefficient of fluctuations in loading of the teeth”.

If the recommended value is not suitable, check the radio button and enter your own value. A tabulation of all agmq b89 variables is provided for each example based on its design criteria. The maximum value is given in the green field on the right. When choosing the degree of accuracy of the designed agma 908 b89, it is necessary to take into account the operating conditions, functionality and production feasibility.


This paragraph gives designs of shaft diameters steel which correspond to the desired loading transferred power, speed. At the same time, the KHb calculation is set up in the calculation 9008 the coefficients in accordance with ISO The contact ratio in the face plane says how many teeth are in meshing simultaneously.

It serves for quick orientation during agmz design. Foreword This Information Sheet, Agma 908 b89 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.

A smaller value than the recommended is indicated by a red text, exceeding the limit agja tooth sharpness by a agma 908 b89 field.


For the helical teething, the tool is an exact negative of the machined gearing in a normal section. The column on the left includes the input field for entering sums of addendum modification coefficients; this field is subdivided into individual agma 908 b89.

This calculation specifies the agmaa of specific slip on the base hub of pinion wheel in lines [5.

Additional calculation of the number of teeth of the gear is based agma 908 b89 the desired transmission ratio. This is the minimum value of agma 908 b89 correction which can be used without admissible minor, tolerable undercutting of teeth. It is hoped that sufficient geometry factor data is included to be of help agma b89 the majority of gear designers.