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Introduction to Brushless DC (EC) Motor and Gearmotor Technology

Introduction to Brushless DC (EC) Motor and Gearmotor Technology

Brushless DC Gearmotors and Motors In Section 3.1 of the Bodine Electric Handbook we discuss how motor action is achieved in a conventional permanent magnet DC (PMDC) motor. A segmented commutator rotating within a stationary magnetic field causes mechanical switching of the armature current. In a brushless DC (BLDC) gearmotor or motor, the magnetic field

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Advantages and Disadvantages of Planetary Gearmotors

Advantages and Disadvantages of Planetary Gearmotors

We design all our standard parallel shaft (helical or helical/spur) and right angle (worm or helical/worm) gearboxes in-house, and all gearheads are manufactured and assembled in our main factory in Iowa. Occasionally, we’ll receive a request to mate one of our standard AC, DC or BLDC motors to a planetary gearhead. To identify the best gearmotor option for our customer’s

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Permanent Magnet (PM) DC Gearmotors and Motors

Permanent Magnet (PM) DC Gearmotors and Motors

Features and Benefits of PMDC Gearmotors and Motors: Continuous duty operation DC power supply (battery or speed controls – 12/24V, 90/130V, 180V) Reversibility at rest or during rotation with current limiting Relatively constant and adjustable speed Starting torque 175% and up of rated torque High starting current, relative to full load running current Design and

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Selecting DC Motor Speed Controls for PMDC Gearmotors

Selecting DC Motor Speed Controls for PMDC Gearmotors

Basic DC motor speed controls accomplish the conversion of AC power to DC with varying degrees of DC voltage “purity.” For proper control selection you’ll need to identify which performance criteria are important to your application. We’ll review how different speed controls affect the quality of DC output and consequently, the performance of your DC

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New 34B/FV-F INTEGRAmotor BLDC stock gearmotors

New 34B/FV-F INTEGRAmotor BLDC stock gearmotors

We just added a new series of 24V brushless DC (ECM) gearmotors to our standard INTEGRAmotor™ product line. The new type 34B4/FV-F gearmotors combine a PWM speed control, a brushless DC motor, a high-torque gearhead, and an optical encoder into one high-performance drive package. The 34B/FV-F gearmotors provide 1/4 hp (187 watts) and up to 341 lb-in. (39 Nm)

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Design Tips for Gearmotor Applications

Design Tips for Gearmotor Applications

To select the best gearmotor for an application, one must go into more detail than just selecting the best suitable output speed and torque. Here are five criteria you should consider. 1. Gearmotor Mounting Orientation Gearmotors are typically designed to be mounted with the gearbox level with the motor, and with the drive shaft in

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Selecting Fractional Horsepower (FHP) Gearmotors for Long-Life Applications

Selecting Fractional Horsepower (FHP) Gearmotors for Long-Life Applications

Buyers should first decide what kind of operating life is needed. If durability is not an issue, or if the duty is so intermittent that even a short-life (“throw-away”) motor will translate into years of operation, then you’ll want to go with the best price. But if product quality and reputation depends on reliability and

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Measuring Armature Circuit Resistance in a PMDC Motor

Measuring Armature Circuit Resistance in a PMDC Motor

Application Notes & Gearmotor Tips: When a permanent magnet DC (PMDC) motor fails to operate properly, or fails to run at all, one sensible troubleshooting step is to measure the winding resistance to determine if there’s an open circuit or a short circuit, either between turns of the same winding, between two windings in the

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What does IR Compensation mean, and what is it used for?

What does IR Compensation mean, and what is it used for?

The IR compensation method is used to provide the speed regulation in our DC motor speed controls. When the load of a PMDC motor increases, the amount of current that the motor draws also increases. Per the performance characteristics of permanent magnet DC (PMDC) motors, an increase in load will cause a decrease in speed, because

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What is an AC Torque Motor? When do I use one?

What is an AC Torque Motor? When do I use one?

Bodine Electric offers AC induction motors that are impedance protected – we call these types of motors AC Torque Motors. These motors are ideal for tensioning applications because they can operate in stall mode without overheating. Torque motors feature: Higher starting torque at lower speed and lower running torque. What does “impedance protection” mean? It

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Need help getting started?

We can help you find the best motor, gearmotor, or control for your next design project. Contact us today!