LEESON Electric Corporation  

Fan and Blower Motors

Resilient Base Motors
General Specifications:
Resilient Base Motors

Industrial quality, resilient mounted, capacitor start-type, ball bearing motors for fan and blower service.  Moderate starting torque electrical design to reduce stress on the fan blades during start-up.  Capacitor-type design has higher energy efficiency rating than split phase, single-phase fan and blower motors.  Suitable for belt-driven fans or fan-on-shaft applications.  Self-ventilated design, may be mounted outside of the fan’s airflow.

Ratings: ODP – Resilient Base – 115/230 Volt, 277 Volt – Auto Protectors 
Horsepower 1/4 to 2 1/4 to 2
Speed (RPM) 3600 1800
Frame Size 48, 56 48, 56

Ratings: TEFC – Resilient Base – 115/230 Volt – Auto Protectors
Horsepower 1/2 to 1
Speed (RPM) 1800
Frame Size  56

Two-Winding Variable Torque, PSC Type for shaft mounted applications.
These fan and blower duty motors are designed for dependable, energy saving performance in applications where the fan is mounted on the shaft of the motor. These PSC type motors do not require a centrifugal switch, resulting in higher reliability and because of their low amp design, they are energy efficient. 56 frame motors are painted with an epoxy paint and the 48 frame models have a baked-on powder coat for extra corrosion resistance in tough applications. All motors have extended thru-bolts for mounting to the fan cage and because they are TEAO designed motors, they must be mounted in the air stream of the driven fan.  Two-speed operation can be achieved by using the proper auxiliary switch.
Resilient base motor ratings:
¼ - 1 HP 1625 & 1075 RPM 115/230 Volt Auto Protectors

Rigid Mount design:

¼ - 1/2 HP

1625 & 1075 RPM 115/230 Volt Auto Protectors
Two-Speed, Two-Winding, Variable Torque for Belt Driven or Shaft Mounted Fan Applications.

These motors are suited for belted or fan on shaft applications.  They may be mounted within or outside the driven fan’s air stream.  Resilient mounted for quiet operation, and lubricated with high temperature Exxon POLYREX® EM bearing grease.  ¾ HP and larger motors are capacitor start motors; smaller motors are split phase start.

Ratings include :

¼-1/12 HP

1725/1140 RPM

115 Volt

1/3-0.15 HP 1725/1140 RPM 115 Volt
½-1/4 HP 1725/1140 RPM 115/230 Volt
¾-1/3 HP 1725/1140 RPM 115/230 Volt
1.0-0.44 HP 1725/1140 RPM 115/230 Volt
Aeration Fan Motors
These totally enclosed air over motors are dust tight and suitable for shaft-mounted fans. Motors are capacitor start designs and designed to be used in the airflow of the driven fan. They are protected from the environments, having gasketed openings and finished with corrosion resistant epoxy paint. High temperature ball bearings are lubricated with Exxon POLYREX® EM grease.
Ratings :
¾ - 3 HP 3450 RPM 56Z 145 T 1.0 Service Factor TEAO 115/230 Volt
Industrial Split Phase Fan Motors
These FHP Commercial Duty, split phase motors have moderate starting torque and are designed for continuous duty on fans, blowers and other belt driven fan on shaft applications. Resilient base is provided for quiet operation and motors have automatic overload protection have a built in terminal style connection provision for quick wiring.
Ratings :
¼ - 1/2 HP 115/230 Volt Auto Protected 1725 RPM
Residential/Industrial Belted Fan Split Phase Motors
Designed for use with Air conditioners, roof ventilators and exhaust fans where low starting torque is required.  Motors have resilient bases and ball bearings for quiet operation. 1/3 and ½ HP available in two speed designs – 1140/1725 RPMs
Ratings :
¼ - 1/2 HP ODP Auto Protected 115 volts 1725 & 1140 RPM 48 YZ & 56 frame
Premium Efficient Residential/Industrial Belted Fan Motors

High-efficiency motors for residential or industrial belted fan applications.  Features quiet ball bearings, resilient base and “Super-Hush” flow through ventilation.  These features, along with a specially balanced rotor, gives these motors a smooth and quiet operation.  Spade connectors on terminal board allow for quick and easy interchange with other motor brands.

Ratings :
¼ - 1/2 HP ODP 115 Volt Auto Protected 1725 RPM
Pedestal Fan Motors
Designed for air circulators where motor is mounted directly to fan column.  Motors are energy efficient, permanent split capacitor type design that eliminates the centrifugal switch for “three-phase” reliability.  They are totally enclosed ball bearing design for commercial and industrial environments.  All motors have thermal overload protection and use a heavy-gauge steel yoke type base that is welded to the motor frame.  These motors also have four, 10-32 mounting studs that are extended 1.0” on a 5.14” diameter bolt circle for mounting of the fan shroud.  Motors are UL and CSA Recognized.
Ratings :1/2 inch and 5/8 inch Shaft Diameters
¼ - 1/2 HP 115/230 Volt Auto Protected TENV 1625 RPM 48Y Frame
Catalog Pages -
Fan and Blower Motors