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MARATHON MOTORS

For more than 100 years, Marathon Motors (a division of Regal Beloit Corporation) has been a leading manufacturer of high quality, ultra efficient & long lasting motors and power generation products for applications in the automotive, food & beverage, marine and oil & gas industries. The company is headquartered in Beloit, Wisconsin, USA and provides services throughout the United States, Europe, Canada, Mexico and Asia. Read More

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Power Transmission

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Definite Purpose AC MotorsView all

  • Cooling Tower Motors

    Designed for applications in air-cooled condensers and heat exchangers, as well as in dry and wet cooling towers. Available in 50 / 60 hz variants and different hp ratings

  • Definite Purpose Motors

    Continuous-duty motors ideal for applications in air compressors, cranes, power tools and livestock direct drive fans. Available in TEFC / DP / OPAO enclosure variants

  • Farm Duty Motors

    Intended for use in machinery (e.g. barn cleaners, silo unloaders and bunk feeders) where high starting torque is required. Available in different mounting options, enclosures and finish options

  • Hazardous Location Motors

    Heavy-duty explosion-proof and hazardous location Marathon electric motors featuring a rolled-steel / cast iron frame for reduced vibration and maximum rigidity. NEC compliant and ideal for use with PWM drives for Groups C and D in Class 1 and Groups F and G in Class 2

  • Kiln Motors

    Includes energy efficient and NEMA Premium rated Marathon motors extensively used in dry kiln and other high-temperature environments. Can efficiently operate at up to 212 degrees Fahrenheit

  • Vector Motors

    Feature MAX GUARD insulation system, NEMA Design A and aluminium / rolled steel / cast iron construction. Designed in compliance with UL and CSA standards, and are ideal for VFD applications requiring full torque at zero speed

  • Washdown Motor

    Ideal for applications that require high-pressure steam and chemical sterilisations, and cleaning with concentrated caustic solutions. Available in epoxy-coated steel frame and TEFC / TENV enclosures

Motor SuppliesView all

  • Capacitors
  • Motor Accessories

    Drip covers designed for use with ODP or TEFC motors to resist the ingress of solid and liquid contaminants into the motor housing. Separate C-frame motor kits and motor mounting kits also available

  • Rotary Encoders
  • Vector Motor Brakes

    CSA-certified 50 / 60 Hz motors designed for use with BlackMax motors to convert unit-mount motors into brake motors. Can withstand ambient temperatures up to 40 degrees C. Come equipped with the requisite mounting hardware

Pump MotorsView all

  • Close-Coupled Pump Motors

    NEMA JP and JM frame pump motors ideal for fluid handling operations in water treatment facilities or pump circulators. Feature locked, oversized, shaft-end ball bearings for reduced maintenance services  

  • Jet Pump Motors

    Wide range of fire pump motors, commercial motors, and square flange pool & vertical pump motors featuring single or three phase configuration capable of delivering output rates up to 350 HP. The 1-phase motors have a voltage-change plug & an enlarged conduit box for easy terminal lead connection

  • Vertical Pump Motors

    Continuous-duty vertical pump motors for pumping water at speeds up to 3600 RPM. Feature a totally enclosed design capable of generating power up to 250 HP and Class F insulation for handling temperatures up to 180 deg C

General Purpose AC MotorsView all

  • AC Motors

    Marathon AC motors are devices that transform electrical current into mechanical rotational energy or torque, by employing alternating current (AC) from an electrical power grid or electrical generator.

  • Brake Motors

    High-performance brake motors suitable for use on conveyors, door operators, machine tools, hoists and speed reducers for holding or stopping loads instantly. Feature an open drip-proof / explosion-proof / totally enclosed fan-cooled design for preventing the ingress of hazardous contaminants

  • Metric Three Phase Motors

    High-performance motors with a cast iron / aluminium construction, steel fan covers and low-noise fans. Intended for use in equipment (like conveyors, pumps and compressors) requiring IEC dimensions and electrical standards

HVAC MotorsView all

  • Belt Drive Motors

    1- / 3-phase motors used for driving a pulley and belt to power HVAC equipment, like air circulators, air coolers, roof ventilators and belt-drive fans. Capable of delivering speeds up to 3600 rpm. Variants available in capacitor-start / run and split-phase designs

  • Condenser Fan Motors

    UL-listed and CSA-certified Marathon HVAC motors designed to blow air across the condenser coil to cool the refrigerant and convert hot gas into liquid

About Marathon Motors

The Marathon Motors catalogue incorporates motors under the general purpose, compressor, HVAC, washdown, brake, vector and pump motor categories. The brand's 3 phase, drip proof general purpose motors are ideal for use in non hazardous applications with pumps, machine tools and ventilation equipment. These NEMA rated motors feature the open drip proof enclosure design and can handle the harshest environments, safeguarding the internal components from the ingress of foreign contaminants. These C face footed Marathon motors feature frames made of cast iron / rolled steel for resisting corrosion on exposed surfaces and deliver speeds up to 3560 rpm. These Marathon motors allow both horizontal & vertical orientation and offer a maximum efficiency of 93.6%. The brand's totally enclosed, 3 phase motors feature rigid / base mounting for easy & secure installation. They have a maximum efficiency of 94.5% and can operate at rotational speeds ranging between 1200 and 3600 RPM. These Marathon motors come equipped with ball bearings for low rotational friction and are offered in power ratings ranging from 1 to 125 hp.

Things To Consider

Cross-Reference Alternatives

Some Marathon motors cross individual references to the equivalent Baldor or Leeson model numbers. So, if you're looking for a competitor motor that is either out of stock or obsolete, chances are Raptor Supplies has the equivalent Marathon motor available.

Shipping

These Marathon motors range from small to large sizes. They require careful packaging as some items may get damaged while shipping. Hence, these Marathon motors are delivered by courier shipment and air freight for minimum downtime.

Major Trade Names

BLUE MAX Inverter Duty Motors

BLUE MAX inverter duty motors are designed for vector or VFD applications requiring full rated torque at zero speed, using either open or closed loop controls. These Marathon motors feature a patented...Read More 

MICROMAX Inverter Duty Motors

MICROMAX inverter duty motors are designed to operate smoothly with all PWM drives, thus ensuring years of hassle-free operation. These Marathon motors feature a Class H insulation system attached wit...Read More 

XRI 3 Phase, General Purpose Motors

XRI 3 phase general purpose motors from Marathon Motors are ideal for 10:1 CT up to 365T frame and 10:1 VT on all frame sizes. These UL listed, CE marked & CSA certified motors meet or exceed all USA ...Read More 

SyMAX Motors

SyMAX motors offer the highest level of longevity and reliability, along with low maintenance costs, owing to their high ingress protection levels, low operating temperature and ultra precision balanc...Read More 

Marathon Motors Competitive Advantages

MAX GUARD Insulation System

The patented MAX GUARD insulation system is the only insulation system which provides unlimited lead length between the drive and motor. This MAX GUARD insulation system combines a unique, low stress winding configuration and corona magnet wire for extending motor life under the adverse dielectric & thermal stresses generated by the high switching frequencies of PWM medium voltage drives. The MAX GUARD insulation system surpasses the needs of NEMA MG1, Part 31 and is a standard feature of BLACK MAX & BLUE MAX Marathon motors.

IntelliDrive Technology

IntelliDrive technology features an embedded electronic control system that includes proprietary algorithms to ensure easy power controlling while maintaining a high level of efficiency. It helps in maintaining constant torque and thus, increases the motor service life.

Frequently Asked Questions

How do electric motors work?

Electric motors convert electrical energy into mechanical energy for generating motion. Force is produced within the motor through the interaction between a winding alternating (AC) or direct (DC) current and the magnetic field.

What to consider when purchasing a motor?

There are several factors that you need to consider while selecting a motor -

  • Current is what powers the motor, but excessive current can damage the motor. For DC motors, stall and operating current are important. Stall current applies sufficient torque for the motor to run either at stall speed or 0 RPM. This is the maximum amount of current the motor can draw. Operating current is the average amount of current, motors are expected to draw under specific torque. Overcurrent may lead to shoot up in heat, resulting in wire melting.
  • Voltage is important as it keeps net current flowing in a single direction and overcomes back current. The higher the voltage, the higher the torque. Make sure that the recommended voltage is applied. If you apply very low voltage, the motor will not work, while applying too much voltage can lead to short circuiting and consequently result in power loss or complete failure.
  • Operating torque is the amount of torque the motor was calibrated to produce while stall torque is the amount of torque generated when power is applied from stall speed. You must look at the required operating torque, but some applications may require you to know how far the motor can be pushed. For example, with a wheeled robot, good torque means good acceleration but you should make sure the stall torque is high enough to lift the weight of the robot. In this case, torque is more important than speed.
  • Velocity or speed can be complex in regards to motors. Generally, motors run most smoothly & efficiently at the highest speeds, but it is not always possible if gearing is needed. Adding gears will reduce the motor efficiency, so take into account both the speed and torque reduction simultaneously.

What are the different types of Marathon motors offered by Raptor Supplies?

In addition to general purpose AC motors, Raptor Supplies offers Marathon induction motors, air compressor motors, belt drive motors, brake motors and washdown motors.

What is a TEBC motor enclosure?

Totally Enclosed Blower Cooled (TEBC) enclosure is a totally enclosed motor enclosure mounted with a fan on the opposite end of the motor shaft to deliver cooling air over the motor. Selected Marathon vector motors come with TEBC enclosure to prevent overheating of motor windings.

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