AGMA 932-A05 pdf free download.American Gear Manufacturers Association – Rating the Pitting Resistance and Bending Strength of Hypoid Gears.
This information sheet provides a method for calculating the pitting resistance and bending strength of hypoid gears using the procedures of
ANSI/AGMA 2003-897.
1.1 Rating formulas
The knowledge and judgment required to evaluate the various rating factors come from years of accumulated experience in designing, manufacturing and operating gear units. Empirical factors given in this document are general in nature. AGMA application standards may use other empirical factors that are more closely suited to the particular field of application. This document is intended for use by the experienced gear designer, capable of selecting reasonable values for the factors. It is not intended for use by the engineering public at large.
1.2 Exceptions
The exceptions in clause 1.2 of ANSI/AGMA 2003-B97 apply for hypoid gears. Lengthwise sliding in hypoids reduces their efficiency. Torque losses between driving pinion and gear range from 2 to 15 percent depending on the offset, spiral angles, velocity and lubrication. The equations neglect efficiency. The user can adjust input or output to account for losses.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this information sheet. At the time of publication, the editions were valid. All publications are subject to revision, and the users of this document are encouraged to investigate the possibility of applying the most recent editions of the publications listed.
ANSI/AGMA 2003-B97, Rating the Pitting Resistance and Bending Strength of Generated Straight Bevel, Zerol Bevel and Spiral Bevel Gear Teeth
ANSI/AGMA 2005-003, Design Manual for Bevel Gears
3 Nomenclature
The symbols used in this information sheet are shown in table 1.
NOTE: The symbols and terms contained in this document may vary from those used in other AGMA standards. Users of this information sheet should assure themselves that they are using these symbols and terms in the manner indicated herein,
System international (SI) units of measure are shown in parentheses in table 1 and in the text.
Equations are shown in two formats: the first is non-metric, the second is with SI units, constants and ISO symbols, designated by “M” in the equation number.AGMA 932 pdf download.