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Application Notes

We design and manufacture thousands of standard and custom AC, brushless DC and permanent magnet DC gearmotor solutions. These application notes provide practical tips for the use and installation of our products.

 


 

Introduction to Planetary Gearmotors
Engineering Tips

Planetary gearheads are typically comprised of a sun gear, a ring gear, and a planet carrier assembly with three to five planet gears per stage. Planetary gear trains are popular in applications where more torque is required from a smaller gearmotor package.

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What is a Synchronous AC Motor?
Engineering Tips

The difference between the speed of the rotating magnetic field of an induction motor (which is always synchronous) and the speed of the rotor is known as "slip". When the rotor design enables it to "lock into step" with the field, the slip is reduced to...

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Introduction To Worm Gearing
Engineering Tips

Worm gearing is a proven and economical solution for applications that require high speed reductions in limited space, and with very smooth and quiet operation. Worm gears have inherent self-locking ability depending on design and ratio. Our latest Application Note provides an overview of...

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Electromagnetic Holding Brakes for FHP Gearmotors
Engineering Tips

Holding, or "Power-Off" brakes provide extra safety in applications where the load must remain in position in the event of power loss or equipment failure. Our design engineers have helped OEMs develop brake systems for hundreds of AC and DC applications, from home stairlifts to...

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How to Connect a Reversing Switch to a 3- or 4-Wire (PSC) Gearmotor
How-To Instructions

This application note shows how to wire an optional switch to reverse the direction of a 3- or 4-wire Bodine permanent split capacitor (PSC) motor/gearmotor. All the wiring diagrams use variations of a double throw switch, with a center-off position. The purpose of the center-off position is to...

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How to Connect a 3-Wire Reversible AC Gearmotor (and optional switch)
How-To Instructions

These connection diagrams show how a 3-wire reversing PSC gearmotor/motor can be connected with the use of a relay to existing 4-wire PSC motor circuitry. Connection diagrams and direction of rotation changes between gearmotors with...

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Sizing and Selecting Gearmotors for Conveyor Applications
Engineering Tips

This application note provides step-by-step instructions for how to size and select a gearmotor in a belt-driven conveyor application. Before sizing a gearmotor, you must first know...

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Connecting a 3-Wire Reversible PSC Gearmotor into a 4-Wire System
How-To Instructions

This application note shows how a 3-wire reversible PSC gearmotor/motor can be connected with the use of a relay to existing 4-wire PSC motor circuitry. Connection diagrams and direction of rotation changes between gearmotors with...

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How to Connect a 4-Wire Reversible AC Motor or Gearmotor (and T-box)
How-To Instructions

All our permanent split capacitor (PSC), AC single-phase motors and gearmotors require a run capacitor to operate. This application note will show you how to wire the PSC motor and...

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Selecting DC Motor Speed Controls for PMDC Gearmotors
How-To Instructions

For DC motor proper speed control, you will need to identify which performance criteria are important to your application. This application note will review how different speed controls affect...

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Design Considerations for Gearmotor Applications
Engineering Tips

To select the best gearmotor for an application, you must go into more detail than just selecting the best suitable output speed and torque. This application note covers five criteria you should consider: mounting orientation, gearhead efficiency, self-locking...

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Selecting FHP Gearmotors for Long-Life Applications
Engineering Tips

When specifying a fractional horsepower (FHP) gearmotor, first you should decide what kind of operating life is needed from your FHP gearmotor. This application note will help you choose the best product based on total operating hours, design life, output torque...

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Measuring Armature Circuit Resistance in PMDC Motors
How-To Instructions

When a permanent magnet DC (PMDC) motor fails to operate properly or fails to run at all, one sensible troubleshooting step is to calculate the armature circuit resistance. This application note shows the steps necessary to...

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Load Testing – Know Your Current, Know Your Load
Engineering Tips

When designing a new piece of equipment that uses a gearmotor, design engineers must calculate how much motor torque will be needed to drive their application load. This application note provides a procedure to load test your application. A good way to determine how much load is on a motor or gearmotor is to...

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Motor Windings – Custom and Standard Options
Engineering Tips

Winding design is one of the major factors that determines gearmotor performance. We offer a wide selection of standard gearmotors and motors with the most common voltage and frequency ratings for both the North American and International markets. This application note explains the differences between...

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Troubleshooting a Brushless DC (ECM) Motor and Control System
Engineering Tips

In this real-world example of troubleshooting a brushless DC motor and control system, we identified and solved the customer’s design problem by checking wire connections, confirming that the control’s DIP switches were set properly, and...

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