This standard provides a method to determine the power rating of gear sets with spur and helical
conventional pinions and spur self-aligning pinions for cylindrical grinding mills, kilns, coolers, and dryers.
The formulas are applicable to steel, ductile iron (spheroidal graphitic iron), and austempered ductile iron
(ADI) with machined spur, single helical, double helical, or herringbone gear teeth. Calculations determine
the allowable rating for pitting resistance and bending strength of external involute gear teeth.
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