ISO 6336-2 PDF

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INTERNATIONAL. STANDARD. ISO. Second edition. Calculation of load capacity of spur and helical gears —. Part 2: Calculation of surface. ISO CALCULATION OF LOAD CAPACITY OF SPUR AND HELICAL GEARS – PART 2: CALCULATION OF SURFACE DURABILITY (PITTING). ISO FRENCH: French Language – CALCULATION OF LOAD CAPACITY OF SPUR AND HELICAL GEARS – PART 2: CALCULATION OF SURFACE.

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In the case of planetary gearing, the individual gears are dependent on each other and the gearing must be handled as 636-2 whole, including the respective constraining conditions see below.

Profile method — Rules and procedures for the assessment of surface texture ISOCalculation of load capacity of spur and helical ios — Part 2: This equation is valid for the range 1.

Component of equivalent misatignment. For dated references, only the edition cited applies. Transverse pressure angle at the pitch cylinder. Therefore it is possible to set the maximum limit for the calculation pre-set to 5. Method C can also generally isoo used, with restrictions for the following fields of application:. The planets are the gearwheels mounted in iiso pivoting way on the carrier and they mesh with the suns or with each other.

Methods, principles and assumptions are given in standard ISO Enter the number of the pinion and gear rack loading cycles. There is no specific methodology of specifying the critical speed for a gear rack application.

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BS ISO 6336-2:2006

In downloading this file, parties accept therein the responsibility of not infringing Adobe’s licensing isp. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. The stress correction factor Y S is used to convert the nominal tooth root stress to local tooth root stress. Design considerations to prevent fractures emanating from stress raisers in the tooth flank, tip chipping and failures of the gear blank through the web or hub will need to be analyzed by general machine uso methods.

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Help Center Find new research papers in: As the planet and the ring gear have the same axis, the centre distance between the planet and both suns must be the same.

In this calculation, except sac and sat, are proposed other material parameters that are necessary for calculating the gearing.

The system with the carrier connected to the frame is called a normal transmission or helical gearing.

Allowable stress numbers in this standard are determined or estimated from laboratory tests and accumulated field experiences. The manufacturing tool profile can be specified both for the pinion and the gear rack. If this limit is exceeded, it is recommended to check the selected material in proportion to the gearing load.

636-2

The losses due to loading arise during power transmission and include:. The description includes the key formulas used as well as the notes important to understand the calculation and to operate this application.

Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth ISO iwo The empirical guidance values in table B.

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It is possible to select the number the pinion teeth, the pressure angle and the tooth slope. Allowable contact stress number The relation of calculated contact stress number to allowable contact stress number is:.

You may experience issues viewing this site in Internet Explorer 9, 10 or Ratio gear width to gear diameter Y Axis: The user of ISO is cautioned that when the methods in ISO are used for other helix angles and pressure angles, the calculated results will need to be confirmed by experience.

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Detail description is in ISO Calculation of surface durability pitting Status: For the internal gearing ring geara negative value for the number of internal gear teeth is used, i. SI units T [lb. Calculation of surface durability This is a free 10 page sample.

Because the determination of the coefficient is dependent on a number of factors and primarily on the specific dimensions and design of the gearbox, is for the design purposes selected the coeficient KH b from graphs based on practical experiences.

The losses due to idle run lubrication, unloaded mesh, bearings are difficult to specify analytically and in general, they are significantly lower than losses due to loading. The rating formulae in ISO are not applicable to other types of gear tooth deterioration such as plastic yielding, ido, case crushing, welding and wear, and are not applicable under vibratory conditions where there may be an unpredictable profile breakdown.

This text does not replace the full text of the standards used. Strength and quality of materials ISOCalculation of load capacity of spur and helical gears — Part 6: The main task of technical committees is to prepare International Standards.

The gear rack is replaced by a toothed wheel with a high number of teeth 1 teeth. This part of ISO specifies the fundamental formulae for use in the determination of the surface load capacity of cylindrical gears with involute external io internal teeth. The formulae are in a form that will permit the addition of new factors to reflect This is a free 10 page sample.

It also incorporates the Amendments ISO