DC & AC Gear Motors: Terminology Overview

Sinotech    January 28, 2014

Gear motors—like AC and DC gear motors—have two main components in their integral assembly: a speed reducer and motor. The speed reducer is the part that contains the gears. The motor is AC or DC powered. Gear motors are available in a variety of styles and sizes, and knowing related terms can help you determine the type that’s best for your needs. DC and AC Gear Motor Terms Axial movement: The movement at the ends of input and output shafts. Backlash: The output shaft’s rotational movement when the input shaft is stationary. Center distance: The distance between the center of…

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Understanding Brushless DC Motor Efficiencies

Sinotech    January 13, 2014

Brushless motors are a hot commodity in the automotive industry, as well as for robotic and medical applications. By knowing the differences that BLDC motors and brush DC motors offer, you can make an educated decision about the best type for your application. Brush DC Motor Efficiencies Cost: Brushed DC motors are generally less expensive than their brushless counterparts. Simple control: The motors have a two-wire control and need little to no control in fixed-speed designs. Magnet placement: In brushless motors, the magnets are in the rotor. This means that connections, a commutator and brushes aren’t needed because of the…

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Importance of Quality Audits of Offshore AC Gear Motor Component Factories

Sinotech    June 25, 2013

When you need custom AC gear motors, perfection and quality are vital to the success of your product. Seeking an offshore solution is a common option that allows companies to reduce costs, but it comes with the risks associated with cultural and language barriers as well as inexperience. When clients seek an offshore solution for their AC gear motors, items from the DC motor catalog and other motor components, Sinotech always audits the factories it works with from beginning to end to ensure a successful offshore experience. The Components and Importance of a Quality Offshore Audit The best offshore auditor…

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Benefits of the Three-phase Brushless DC Motor Technique

Sinotech    March 19, 2013

Gaining popularity through various industries, the brushless DC motor is a type of synchronous motor. The permanent-magnet rotors within the BLDC motor use electronic sensors that detect the rotor’s position and a DC supply that powers an AC signal inverter. Instead of using a traditional commutator with brushes, the BLDC motor has stator windings that get electronically commutated. The lack of a traditional commutator gives the brushless DC motor several benefits over other types of motor drive architectures. These benefits include: Higher efficiency Less maintenance Ability to operate at higher speeds Smaller sizes No voltage drops across brushes (because there…

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AC vs. DC Gear Motors: What’s the Difference, and Which Offers More Gear Motor Advantages?

Sinotech    February 11, 2013

Ask an engineer to list the differences between AC gear motors and DC gear motors, and you can expect a quick, concise answer: AC motors are generally smaller, less expensive, lighter and more rugged than DC motors. DC motors, on the other hand, are generally considered better for variable speed operations. Their improved speed control makes DC motors more expensive to purchase and maintain, generally. Given enough time, the engineer might go on to explain the technical aspects that differentiate these two gear motors. If speaking to a layperson, the engineer would begin by explaining that AC stands for alternating…

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Selecting a DC Gear Motor: Uses and Design Features

Sinotech    January 15, 2013

When you need a DC gear motor, it can be hard to know the right one to choose. The next time you find yourself in this situation, refer to this list of common features of DC gear motorsto help you figure out how to best meet the needs of your application. Features of DC Gear Motors Gear materials: Plastic or metal. Motor types: Wound-field, permanent-magnet, brushless, intermittent and continuous duty motors. Brush-type and brushless motors: The brushed motor gains torque from the power supplied to the motor using stationary magnets, commutation and rotating electrical magnets. Brushless motors use a soft…

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Sinotech Motors & Mechanical Parts Industry News & Resources

Sinotech    November 13, 2012

At Sinotech we take pride in delivering high-quality motors and mechanical parts to our clients around the world. Sinotech offers a wide range of high quality electric AC and DC motors as well as custom electric motors built to your design requirements. We also provide custom engineered mechanical products, metal and plastic components and magnets to a variety of industries. Sinotech has over 20 years of experience in the industry with engineers personally supervising all tooling and production to ensure quality control. Our goal is to keep our clients and visitors up to date on the latest news and resources…

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