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Lovejoy Variable Speed Drives

Lovejoy Variable Speed Drives
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Lovejoy Variable Speed drives can provide a very economical and reliable method of speed change which 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 accomplished quickly, while the drive is running. Lovejoy Variable Speed drives can be used as highly efficient belt tensioners, with no adjustment necessary. Lovejoy Variable Speed drives offer a form of “soft start,” eliminating belt slip and premature wear on belt drives with inherent high torque start-up requirements.

Lovejoy Variable Speed Drive Products

Lovejoy Econoline Series Variable Speed Drives

Lovejoy Econoline Series VSDThe Lovejoy Econoline Series Variable Speed Drive offers a reliable and maintenance-free design at an economical cost. The Lovejoy Econoline Series Variable Speed Drive is ideal for both adjustable and fixed center drives using classic “A” and “B” (or 4L and 5L) section drive belts. The Lovejoy Econoline Series Variable Speed Drive features driven speed ratios from 1.6 to 1 up through 2.7 to 1, as well as horsepower ranges from fractional through 5 HP @ 1750 RPM motor speed. The Lovejoy Econoline Series Variable Speed Drive also features durable cast iron flanges and is available in a wide selection of models. Typical applications for the Lovejoy Econoline Series Variable Speed Drive include conveyors, mixers, small machine tools, mower traction drives, printing equipment, packaging machines, and belt tensioners.

Lovejoy Aluminoline Series Variable Speed Drives

Lovejoy Aluminoline Series VSDLovejoy Aluminoline Series Variable Speed Drives provide the best possible belt alignment with the least amount of overhung load. Lovejoy Aluminoline Series Variable Speed Drives are used with “A” and “B” drive belts. Lovejoy Aluminoline Series Variable Speed Drives feature anodized aluminum flanges for quiet operation with minimum vibration. Lovejoy Aluminoline Series Variable Speed Drives are rated for .33 HP through 1.5 HP motors; are two-sided; and feature speed ratios up to 2.75 to 1. Lovejoy Aluminoline Series Variable Speed Drives are corrosion-resistant. Applications where Lovejoy Aluminoline Series Variable Speed Drives are used include: agricultural machinery, food packaging and bottling equipment, baseball pitching machines, and others.

Lovejoy WB Series Variable Speed Drives

Lovejoy WB Series VSDLovejoy WB Series Variable Speed Drives feature a two-sided moveable pulley and use wide variable speed belts for the most efficient transmission of torque through the widest possible speed range. Lovejoy WB Series Variable Speed Drives feature the best possible belt alignment when used with a grooved companion sheave. Lovejoy WB Series Variable Speed Drives provide maximum service when lubricated through a convenient grease fitting. Lovejoy WB Series Variable Speed Drives are 6 to 13 inches in diameter and capable of handling up to 15 HP. Lovejoy WB Series Variable Speed Drives feature durable cast iron flanges (over 1 HP), and corrosion-resistant anodized aluminum flanges (under 1 HP). Applications where the Lovejoy WB Series Variable Speed Drives are used include: conveyors, printing presses, mixers, packaging and bottle-filling machines, machine tools, and agricultural equipment.

Lovejoy Hi-Ratio Series Variable Speed Drives

Lovejoy Hi-Ratio Series VSDLovejoy Hi-Ratio Series Variable Speed Drives feature a unique combination of broader driven speed ranges and the lowest possible minimum driven speed. Three drive packages are available for the Lovejoy Hi-Ratio Series Variable Speed Drive. Horsepower ranges for the Lovejoy Hi-Ratio Series Variable Speed Drive are from 0.5 to 5, with a 1750 RPM motor; and the Lovejoy Hi-Ratio Series Variable Speed Drive features speed ratios up to 11.5 to 1. Lovejoy Hi-Ratio Series Variable Speed Drives are ideal for use on machine tools and mixing machines.

Lovejoy Adjusta-Sheave Series Variable Speed Drives

Lovejoy Adjusta-Sheave Series VSDLovejoy Adjusta-Sheave Series Variable Speed Drives are a cost-saving alternative to a spring-loaded pulley when speed change is infrequent. To change speeds using the Lovejoy Adjusta-Sheave Series Variable Speed Drive, drive must be shut down (unlike other variable speed pulleys). All models of the Lovejoy Adjusta-Sheave Series Variable Speed Drive use wide variable speed belts which eliminates the need for internal drive keys and provides a more efficient transfer of power and longer life. Lovejoy Adjusta-Sheave Series Variable Speed Drives feature two cast iron flanges which are movable, allowing perfect belt alignment at all times. Four models of the Lovejoy Adjusta-Sheave Series Variable Speed Drive are available, from 5 to 30 HP. The Lovejoy Adjusta-Sheave Series Variable Speed Drive features speed ratios up to 2.5 to 1. Applications where the Lovejoy Adjusta-Sheave Series Variable Speed Drive is used include: textile spinning frames, heating and air conditioning equipment, and pumps.

Lovejoy Adjustable Motor Bases

Lovejoy Adjustable Motor BasesThe Lovejoy Adjustable Motor Bases are available in four models to change the distance between the motor and driven shaft. They are: the Sliding “SMB” Type, an extremely low profile, strong, and lightweight model; the Sliding Cast Iron Type, the original Lovejoy design, made of durable cast iron and steel; the Sliding Dovetail Type, the most compact, and most economical Lovejoy motor base; and the Tilting Type, an economical base featuring a pivotal rather than a sliding movement.

Lovejoy Companion Sheaves

Lovejoy Variable Speed SheavesLovejoy Companion Sheaves are flat and grooved drive types for variable speed belts which feature grooved sheaves machined to match belt width and angle of standard belts. Lovejoy Companion Sheaves are made of durable cast iron to assure best possible wear at the belt contact area. Lovejoy Companion Sheaves Variable are bored to accept standard type tapered bushings and precision balanced for smooth running.

Lovejoy Variable Speed Belts

Lovejoy Variable Speed BeltsLovejoy Variable Speed Belts are designed for long life, an even tracking, and smooth and efficient operation. Lovejoy Variable Speed Belts are made of a special synthetic compound for maximum environmental resistance. Lovejoy Variable Speed Belts are available in 7/8 through 2-3/4 inch widths and feature a maximum recommended belt speed of 5,600 ft/min.