Calculating Drive Belt Length and Belt Horsepower Capability For An Auger

To determine the drive belt length required for an auger:
-Measure the center to center distance between the auger input shaft, and the motor shaft.  (center to center distance the belt will have to span between the drive pulley and the driven pulley)
-Many auger manufacturers' catalogs often offer this measurement in the specifications section of their information.

(C) = Center to Center Distance
D = Drive Pulley Diameter
d = Driven Pulley Diameter

Note: The pitch length equation gives the required circumference for the belt at the midsection.  The pitch diameter must be cross referenced in Chart X to determine the proper length for ordering belts.

Note:  If the pitch length determined from the equation falls between the lengths given in chart No. X, choose the next larger belt.

Note:  Table XI shows how many horsepower a belt can handle based on pulley size.  As the chart shows, belt wrap determines, to a great extent, the horsepower carrying capability of each belt.