![]() ![]() It is possible that they are not entirely scientifically exact. The influence factors presented in these methods form a method to predict the risk of damage that aligns with industry and experimental experience. It is not applicable to gears which have a poor contact pattern. The ISO 6336 series does not apply to teeth finished by forging or sintering. The rating formulae in the ISO 6336 series are not applicable to other types of gear tooth deterioration such as plastic deformation, case crushing and wear, and are not applicable under vibratory conditions where there can be an unpredictable profile breakdown. interference between tooth tips and root fillets gears with transverse contact ratios less than 1,0 The formulae in the ISO 6336 series are not applicable when any of the following conditions exist: If this scope is exceeded, the calculated results will need to be confirmed by experience. ![]() transverse contact ratio from 1,0 to 2,5. normal working pressure angle from 15° to 25° The ISO 6336 series includes procedures based on testing and theoretical studies as referenced by each method. The formulae in the ISO 6336 series are intended to establish a uniformly acceptable method for calculating the load capacity of cylindrical gears with straight or helical involute teeth. Instead, it is intended for use by the experienced gear designer who is capable of selecting reasonable values for the factors in these formulae based on the knowledge of similar designs and the awareness of the effects of the items discussed. It is not intended for use by the general engineering public. ![]() It is not intended to assure the performance of assembled drive gear systems. Together with the other documents in the ISO 6336 series, it provides a method by which different gear designs can be compared. ![]() This document presents the basic principles of, an introduction to, and the general influence factors for the calculation of the load capacity of spur and helical gears. ![]()
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