Roller Chain Drive Selection Procedure

Obtain the following listed infonnation before selecting a roller chain drive. Make every effort to obtain all of the needed information. 

Shaft eenter distance and drive arrangement. Available eenter distance adjustment, if any. Spaee restrictions. 

In addition, the designer should determine if there are any unusual drive conditions, such as 

If any of the listed or other unusual drive conditions are found, contact an ACA roller chain manufacturer for assistanee. Many ehain manufacturers offer self-lubricating, sealed joint, corrosion-resistant, plated, coated, or other specialty chains designed to operate in particular hostile environments. 

The nominal required power, or input power, is usually given. Peak power may be much larger, depending on the type of power source and driven equipment. Drive designers use a service factor to account for the difference between nominal and peak power. Service factors to estimate the difference between nominal and peak loads induced by combinations of different types of power sources and driven equipment are shown in Table 5-2. The load characteristics of various types of driven equipment are shown in Table 5-3. 

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The following guidelines and procedures are intended to help a drive designer manually select a suitable roller chain drive as quickly and efficiently as possible. Some manufacturers offer roller chain drive selection software. These programs eliminate much of the work in selecting a roller chain drive, but be sure to read and follow all of the cautions and restrictions that come... 

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