Designing Adjustable-Speed V-Belt Drives for Farm Implements

FORMULAS relating the various factors of an adjustable-speed V-belt drive-speed variation, power transmission, and service life-are presented here for the first time. Use of these formulas eliminates previous trial-and-error methods of variable-speed-drive designing.

Following the procedures and data given in this paper, the designer can now calculate a drive knowing that a V-belt of satisfactory quality will give satisfactory service within the limits of certain design assumptions.