Century A.O. Smith Double Shaft Motor 1/8-1/4 HP 1625 RPM

The Century A.O. Smith 747A is a double shaft motor rated 1/8 to 1/4 horsepower at 1625 RPM, supplied for evaporative cooler and dual-drive fan applications.

A double shaft motor extends a shaft from both ends of the frame, allowing one motor to drive two loads. In evaporative cooling this is the standard arrangement: one shaft carries the blower drive pulley while the other drives the water pump or a second component, so a single motor performs both functions without additional drives.

The design is also used in some unit heater, agricultural ventilation, and specialised fan applications where two driven elements sit on a common axis.

Because both shaft ends are working surfaces, both must be verified when selecting a replacement. Shaft diameter and length may differ between the two ends, and the overall length of the assembly matters in equipment where the motor sits in a confined housing.

The multi-horsepower rating allows the motor to cover several OEM ratings by tap selection.

Confirm horsepower range, RPM, voltage, rotation, frame diameter, both shaft diameters and lengths, overall length, and mounting arrangement before ordering, and verify whether the application requires a run capacitor.

Brand

Century A.O. Smith

SKU

747A

Category

Double Shaft Motors

Weight

11 lbs

Dimensions

19.30" x 5.00" x 5.00"

Price

$251.00

Availability

In stock

Rating

4.4 / 5.0