600 Series For use with motors having a fixed diameter pulley and NEMA frame sizes of 48 thru 286. The 600 automatically compensates for variations in load, expansion of belts due to centrifugal force and normal belt stretch. Automatic Motor Bases are ideal for problem applications including: rock crushers, shake-outs, and vibrating screens, and fans. These bases are ideal for most applications including remote sites. The space saving pancake design is spring loaded to virtually eliminate maintenance. Belt tension is automatically adjusted while operating under any load, constant or variable. Operates in any position, clockwise or counter clockwise, and maintains rated speeds while increasing belt and bearing life.
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