The M Series Geareducer line is designed to directly replace other OEM gearboxes in field-erected cooling towers. Features include an Inpro input shaft oil seal to eliminate grooving and extend life. Model 1311, an addition to the line, is available in ratios from 7.89 to 14.64. The gear drive’s primary function is to reduce the speed of the electric motor to optimize fan performance. The Marley gear drives provide primary support to the fan, anchor it against lateral movement, withstand shock loads at startup and during speed changes, and minimize power transmission losses. Heavy-duty double-row interstage bearings provide 100,000 hours of life.

SPX Cooling Technologies