AGMA 6010 PDF

Faemuro It is not intended for use by the engineering public at large. The information on the API data sheet is as follows: Casing Fabrication Cast casings are more commonly used due to their lower cost and shorter delivery time, and to comply with low noise requirements. It is fairly conservative, but not nearly as much as API It presents general guidelines for design, rating and lubrication of parallel, concentric and rightangle shaft drives, but here we will only consider rating of parallel-shaft gearboxes. An even wider range of gears could have been analyzed, but that probably would not significantly change the general conclusions of this study.

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Faemuro It is not intended for use by the engineering public at large. The information on the API data sheet is as follows: Casing Fabrication Cast casings are more commonly used due to their lower cost and shorter delivery time, and to comply with low noise requirements. It is fairly conservative, but not nearly as much as API It presents general guidelines for design, rating and lubrication of parallel, concentric and rightangle shaft drives, but here we will only consider rating of parallel-shaft gearboxes.

An even wider range of gears could have been analyzed, but that probably would not significantly change the general conclusions of this study. Complex heat treatment procedure. The material index number is based on the hardness and the heattreating process.

Do not have apex runout. Due to longer teeth, the temperature rise of the oil is greater than double helical at the same operating speed. API covers not only gear rating, but also related lubricating systems, controls, and instrumentation. For the pitting ratings, all ratings that use AGMA methods as their basis are consistent. There are changes occurring in the gear tooth quality standards. A different way to present the difference between the size of the gear set rated by both standards is to pictorially represent them.

The response usually is that being substantially below the allowable only increases the service factor, which is already very high, therefore, it is not necessary. Substituting into Equation 6 to solve for the pinion bending stress number: Less expensive to fabricate gear elements.

This is a staggering difference. Agm API committee is reviewing a proposal to change the method of rating the gear sets with a ratio greater than 7. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.

This Standard presents a method of rating the pitting resistance and bending strength of spur, helical, herringbone, and bevel gears used for enclosed speed reducers and increasers. At this revision, the formulas for the durability and strength horsepower rating were removed from the standard and were replaced by aga to the basic rating standard AGMA was the standard before the new numbering system.

Problems have been recognized with AGMAso it will be revised or withdrawn. Gearbox specs: Getting it right Symmetrical thermal distortion for the gear casing. Getting it right By John M. View Cart Checkout Continue Shopping. Gear Types Some of the most common gear types are: The method, simplified from AGMA formulas, has the two typical criteria of any gear tooth rating system, the durability of the gear tooth and the strength of the gear tooth. Speeds range from to 45, RPM.

The majority of heavy industrial gears are of single or double helical gear design. The allowable bending stress number depends on materials selected for the gear teeth, the tooth hardening processes used, and the service factor.

As a result, the AGMA members voted to withdraw the standard. It is single helical with an effective face of 6. The proposed rating method is more complicated than API because of the increased detail.

The decision was appealed and is abma going through the AGMA appeal process. Fortunately, the overlap is small. Let us begin with a brief description of these standards:. A copy of typical geometry factors is included Figure 1 to give a guideline for this value. It is not intended for use by the engineering public at large E xceptions. Related Posts.

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AGMA 6010 PDF

It is primarily intended for gears that are in continuous service without installed spare equipment. Gearbox specs: Getting it right Turbomachinery Magazine It is not intended for use by the engineering public at large E xceptions. To understand how much the API standard affects the efficiency, an example qgma a hp electric motor at rpm driving through a gearbox gama a rpm centrifugal compressor is offered in Table 2. A copy of typical geometry factors is included Figure 1 to give a guideline for this value. The rating methods used in the API and API standards are highly valued by many because they are consistent between manufacturers and easily checked by purchasers and users. The second edition changed the rating method to that given in The proposed rating method is more complicated than API because of the increased detail.

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