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What gives a motor sea legs?

Jerry Hodek looks at some of the principles and techniques that have evolved to make motors reliable at sea

Ballscrew drives now include new rolled version

Screw drives are suitable for a variety of machine building, automation, handling and automotive engineering applications

New belts for energy-efficient and environmentally friendly drives

High-performance timing belts from ContiTech with carbon tensile member developed

Motors drive plunger pumps

WEG to supply six custom-made squirrel-cage motors for driving plunger pumps on offshore oil production ships in Brazil

Delivering water to region in Turkey badly hit by drought

WEG has supplied eight medium-voltage asynchronous motors, to drive the pumps that transport water to the irrigation canal

A motor control technique for all seasons

Ere Jääskeläinen outlines the benefits of direct torque control (DTC) technology

Semiconductor devices energise servos and inverters

Whether an application requires precision motion control for medical apparatus or for powering a megawatt motor, the omnipresent transistor invariably sits at the crux of it all. Boris Sedacca reports on the latest developments in power electronics for motors

The fundamental principles of stepper motors

Stepper motors are very often the best solution for positioning applications, being low cost and straightforward. But they are not a universal panacea, as Gerard Bush reports

Micro-motors take over when conventional designs reach their limits

PiezoMotor AB develops, manufactures and markets cutting-edge based on patented piezoelectric technology

The trends that are driving electric drives

What does the future hold for electric drives in the industrial automation sector? Currently there are three trends which are dictating development – speed and ease of specification, simplified control and maintenance, and machinery safety. Here, Nigel Dawson looks at these trends

Demo shows controlled release of 5,000Nm

Having recently launched its new RDBK releasable backstop, Stieber Clutch has demonstrated its performance by developing a test rig in partnership with Bauer Gear Motor

‘Off-the-shelf’ variable frequency drives

Bosch Rexroth has unveiled its new series of variable frequency drives for general automation, materials handling, pumps, fans and conveyors

Servomotors bridge gap between stepper and induction motors

New Kollmorgen VLM series servomotors from Heason Technology suit value conscious applications

Ethernet communications capability added to integrated stepper motor/drives

Applied Motion Products has added six integrated drive+motors to its line of Ethernet and EtherNet/IP motion control products

USB stepper motor evaluation kit

Aimed at OEMs and machine builders wishing to assess the many benefits of Arcus’ integrated motor technology

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