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Variable Speed Drives

Overview

Variable Speed Pulley Product Preview

Lovejoy offers the most complete line of non-enclosed variable speed belt drives from fractional through 30 horsepower. Each component is made with the quality and reliability that Lovejoy builds into all of its power transmission products.

Features

â–  Very economical and reliable method of speed change â–  â–  Allows the user to find the ideal speed without changing sheaves and belts. This is especially important on applications where final driven speed is critical and difficult to attain with two fixed-diameter sheaves. Speed range within the ratio is infinite, and speed change is accom- plished quickly, while the drive is runningCan be used as a highly efficient belt tensioner, with no adjustment necessaryOffers a form of “soft start,” eliminating belt slip and premature wear â–  on belt drives with inherent high torque start-up requirements Econoline Series Aluminoline Series

Econoline Series

The Econoline Pulley series provides reliable variable speed service with a proven design at an economical cost. Consisting of a wide selection of models, the Econoline series is ideal for both adjustable and fixed center drives using classic “A” and “B” (or 4L and 5L) section drive belts. This series also offers: driven speed ratios from 1.6 to 1 up to 2.7 to 1 and horsepower ranges from fractional through 5 HP @ 1,750 RPM motor speed. The flanges are constructed of durable cast iron. Typical applications of this maintenance-free pulley include: conveyors, mixers, small machine tools, mower traction drives, printing equipment, packaging machines, and belt tensioners.

Aluminoline Series

Aluminoline variable speed pulleys offer the best possible belt alignment with the least amount of overhung load. Used with “A” and “B” drive belts, these pulleys not only have anodized aluminum flanges which provide quiet operation with minimum vibration, but are rated for 1/3 through 1-1/2 HP motors. These two-side moveable pulleys offer greater speed ratios (up to 2.75 to 1).Due to the corrosion-resistant properties of these pulleys, they are ideal for use on agricultural machinery, food packaging and bottling equipment, baseball pitching machines, and a variety of other products.
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