• Swati Pulley Company Private Limited

Variable Speed Fixed Centre Drives

Swati Pulley Co has developed variable speed fixed centre drives. These are for use on printing, packaging and pharmaceutical machines, conveyor belts, machine tools and other applications, where higher ratios and compact size form the main criteria. The fixed centre drive consists of two variable speed pulleys and a variable speed belt. One pulley is mechanically adjustable and the other is spring loaded. The mechanically adjustable pulley is mounted on the driving shaft. Variation of the output speed is obtained by means of the screw spindle provided on the mechanically adjustable pulley. The characteristics of the spring loaded pulley is such that an ideal pressure is exerted on the variable speed belt ensuring maximum power transmission. Wide speed of ratio up to 1:6 is achieved. Both pulleys are plated giving the drive exceptional wear and corrosion resistance and partial lubrication properties. The pulley is dynamically balanced, bores are pre-broached to H7 tolerance, and keyways are to IS:2710 specifications. These drives can be mounted in both U as well as Z arrangements.