Maximum permissible torque is increased by up to two times the level of conventional AC motor gearheads. If the load condition changes, the gearhead’s strength can easily accommodate it and there is no need to increase the size of the motor or gearhead. Specific torque is dependent on frame size.

The motor’s strength is due to its rigid case, a proprietary side-panel construction and an optimized gear design. The larger diameter bearing serves to extend its useful life.

For more information about the V-Series, visit: http://www.orientalmotor.com/products/ac-motors/v-series.html

Motion Control Tips

Because ac motors have no commutators or brushes, they require less maintenance than brushed dc motors.

With dc motors, control is done by varying voltage and current, while on ac motors the voltage and frequency (along with the number of magnetic poles) are used to control the motor.

There is one common way to break down ac motors that is based on the magnetic principle that produces rotation. So there are two fundamental types of ac motors; induction motors and synchronous motors.

In induction motors, the key idea is the rotating magnetic field. The most common source of this in ac motors is the squirrel cage configuration. This is essentially two rings, one at each end of the motor, with bars of aluminum or copper connecting the two ends.

Induction motors have properties that make them especially well suited to a number of industrial as well as home appliance applications. For starters, they are simple and rugged motors that are easy to maintain. They also run at constant speed across a wide range of load settings, from zero to full-load. The only drawback is that induction motors are generally not amenable to speed control, although the availability of sophisticated variable-frequency drives means that even induction motors, usually three-phase induction motors, can now be speed controlled as well.

The other type of ac motor is a synchronous motor. Synchronous motors are so named because they run synchronously with whatever the frequency of the source is. The motor speed is fixed and doesn’t change with changes to the load or voltage. These motors are primarily used where the requirement is precise and constant speed. Most synchronous motors are used in heavy industrial applications, with horsepower ratings ranging from the low hundreds up to thousands of hp.

Synchronous motors can be used in motion control applications, but there are some down sides to using these motors. Because of the rotor size, the motor’s response in incrementing applications is typically not good. Also, because acceleration of inertial loads may not be as high as other motor types, these motors may operate at irregular speeds and produce undesirable noise. And generally, synchronous motors are larger and more costly than other motors with the same horsepower rating.

Motion Control Tips

More than 400 motion solutions can be delivered in 2 weeks, and soon, Dunkermotoren will make most of those available for same-day shipping. The new e-Shop answers OEMs short time to market constraints for designing and delivering their machines.

Dunkermotoren
www.dunkermotoren.com

Motion Control Tips

The Groschopp AC motor is utilized best in a long-life, continuous duty, application. It has no common wear parts such as brushes and commutators, so it is highly reliable, featuring long life potential and low maintenance. Since the AC motor maintains speed over a wide range of torque it integrates well with commercial ovens, conveyers, insulation blowers, augers, medical beds, x-ray tubes and other conveyer and continuous motion machines. With customization options for speed control and high heat resistance along with the convenient customization from standard to food-grade grease permits the AC motor to synchronize well with commercial, industrial, and construction applications.

The standard features in a Groschopp AC motor include: rugged ball-bearing construction, high-efficiency stator and rotor tolerances and impregnated windings designed to withstand more than twice the nominal voltage.

The Groschopp AC motor has a superb heat dissipation system. Groschopp’s AC motors have innovative cooling channels in the motor housing to avoid dust and grime build-up that can cause overheating and motor damage. “This special cooling mechanism allows the motor to run at lower speeds without overheating which is vital to an inverter duty motor” comments Tullar “we want our motors to last forever.” To further withstand the heat these motors also have insulation that meets “H” class temperature ratings with the ability to withstand temperatures up to 180 degrees Celsius.

Groschopp offers a single phase, 115 and a 230 volt AC motor and a high power, 230 volt, three phase motor. Groschopp can also custom build a dual voltage AC motor. Having both single and three-phase design options provides multiple cost-effective choices depending on the supply voltage and control requirements. “One of the best features of The AC motor is it’s lack of noise” says Tullar. “This AC motor runs so quietly it will not add any additional noise to your workplace,” this is thanks in part to the motor’s ability to run on low current. (Groschopp motors are UL, CSA, CE and RoHS compliant).

Groschopp Inc.
www.groschopp.com

Motion Control Tips

Bison’s new 100mm AC Right Angle Gearmotors are powered by these 115 volt, 60 Hz single-phase TEFC permanent split capacitor motors and offered in six standard versions with gear ratios from 5.2:1 to 50:1 and fixed output speeds from 327 to 28 RPM respectively. Continuous output torques range from 12 to 104 in-lbs (1.4 to 11.8 N-m). The gearmotors are available in an easy-to-mount 3/4″ (19mm) hollow shaft configuration, or can use quickly replaceable single or double output stub shafts and can be either foot or face mounted. In addition, a convenient rear motor shaft extension can be fitted with an optional power-off brake.

Ideally suited for packaging equipment, conveyor systems, foodservice and stationary agricultural equipment, and other specialty machinery applications, the six new 100mm AC Right Angle products are supported by Bison Gear’s In-Stock, Instant-Ship (ISIS) program that supports Bison’s distribution partners and offers same day shipment for orders received before noon (Central Time).

“We believe these compact, high output AC motor designs will find many new applications where space is at a premium, but where motor power cannot be sacrificed,” said Robert Lewton, electrical design engineer at Bison Gear. “This right angle gearmotor offering is the second family of Bison products to benefit from the new 100mm AC motors. This being Bison’s 50th anniversary year, we will continue to expand this innovative new 100mm AC product line and we will follow that up as well with other exciting new products from Bison this year.”

The new 100mm AC Right Angle Gearmotors are American-made to Bison’s high quality standards in its suburban Chicago facility in order to ensure reliable, long-life operation and a short supply chain for North American customers. In addition, Bison’s Innopreneurialâ„¢ application and design engineering capabilities to customize the standard models to meet specific OEM needs are readily available.

Bison Gear & Engineering Corp.
www.BisonGear.com

Motion Control Tips

The latest WX gearhead features rugged, all-steel helical gears exceed or meet AGMA-9 standards for quiet operation and longest life. It also has a synthetic lubrication which allows the gearheads to operate in different temperatures. It can be configured to three-hole mounting pattern through a simple bolt-on adaptor (“Bodine model 0995”).

Also, the gearmotor has 12 new gear ratios with a three-wire reversible, fixed-speed AC motor.

The WX gearhead’s exterior is identical to old W models from Bodine, but its interior has been entirely redesigned. These all-new WX gearmotors has synthetic lubricant and steel helical gears, allowing the gearhead to give up to 50 percent more torque compared to previous models. Its new steel gearing has AGMA 9 standards, or higher, to insure the expected quiet operation from Bodine Electric products. Its synthetic lubricant improves life and allows unvented gearmotors to operate in different temperatures.

The 12 new WX stock models can be configured to feature a three-hole mounting pattern through a simple bolt-on adaptor plate (“Bodine model 0995”). The WX gearhead is the first to be paired with three-wire reversible 34 R from Bodine, motor winding and permanent split capacitor. Its three-wire configuration simplifies connection and reversing the motor’s direction by switching the place of its two leads. Also, new winding can be operated at 50Hz by using a different value run capacitor. The latest 230VAC, 50 or 60Hz, one-phase, three-wire reversible winding is available for custom configurations.

The WX models are made to drive various applications such as commercial appliances, metering devices, packaging equipment and conveyor systems.

Motion Control Tips

It is available in a wide selection of cooling configurations and enclosures (Weather-Protected Type II, Totally Enclosed Water-to-Air Cooled and Totally Enclosed Air-to-Air Cooled). The motor also features the Micalastic® comprehensive vacuum impregnation insulation system to extend the motor’s service life. With its line-supply and converter-fed operation, corona shielding, high switching and reversing strength, the Micalastic system delivers thermal stability, surge strength and resistance to severe environmental and electrical operating conditions.

Siemens Energy & Automation, Inc.
www.usa.siemens.com/motors

Motion Control Tips

These TEFC motors have 5:1 variable torque and 2:1 constant torque ratings and are ideal in applications such as fans, conveyors, pumps and more. IronHorse general purpose motors are available for same-day shipping and are backed by a two-year warranty. IronHorse motor prices start at $70. Check out the full line of IronHorse general purpose motors, including the existing 1800 RPM motors (0.33 to 300 HP) at www.automationdirect.com/ironhorse-motors.

AutomationDirect
www.automationdirect.com

Motion Control Tips

These TEFC motors meet or exceed NEMA Premium efficiencies for optimized motor system efficiency, reduced electrical power consumption and improved system reliability. When used on high cycle or long run time applications, NEMA Premium efficiency motors offer substantial energy savings. These inverter duty motors with rolled steel construction and C-face rigid base mounting, utilize ball bearings and are electrically reversible. They are UL recognized, CSA certified, and have a three year warranty. NEMA Premium Efficiency XRI motors start at $310. A wide variety of other Marathon AC variable speed inverter and vector duty motors ranging from ¼ hp to 100 hp is also available. See the full line of Marathon NEMA premium efficiency motors at:

www.automationdirect.com/marathon-motors

Motion Control Tips

Available in 1 to 100 hp, all motors have a base speed of 1800 RPM and are electrically reversible. The TC frame TEFC motors feature ribbed cast iron frames to ensure maximum cooling. Starting at $130, these motors are ideal in conveyor, pump, fan, and textile processing applications. IronHorse general purpose motors are available for same-day shipping and are backed by a two-year warranty.

www.automationdirect.com/ironhorse-motors

Motion Control Tips