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Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

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CNC Machining Design Guide

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Compound Train Example

To obtain the gear ratio, TV = (output rate)/(input rate), of a compound gear train, an illustrated example is presented in this section.

The procedure is to start with the input, and to calculate how the angular velocity propagates through each successive intermeshing pair of gears based upon the number of teeth.

Consider a compound gear train below.

Suppose that the input gear speed (rotation rate) is 1600 rpm clockwise, i.e.,

The gear ratio between w1 and W2 is inversely proportional to the teeth numbers, n, i.e.,

Hence,

where the negative sign represents for counter-clockwise direction.

Similarly,

and

The final gear ratio TV can thus be obtained,

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.