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High performance brushless motor packs a heavyweight punch

21 August 2015

Delivering high performance with minimum weight, Faulhaber's series 3274 BP4 brushless dc servomotor is now available in the UK from EMS.

Measuring 32mm in diameter and 74mm in length, this motor offers a continuous torque of 165mNm. Furthermore, it weighs in at just under 320g, which is half that of conventional motors with comparable power.

The four-pole brushless dc servomotor is suitable for applications in which high power and dynamic start/stop operation with the lowest possible total weight are important factors, such as drives for humanoid robots, electric grippers or high-performance traction drives used in inspection robotics.

The 3274 BP4 is overload-resistant and operates without wear-prone mechanical commutation. As a result, its operational lifetime is many times longer than that of a conventional dc micro-motor. 

The slope of the motor characteristic curve is just 3rpm/mNm with a stall torque of 2.7Nm.

The 3274 BP4 can reliably deliver what the application demands even under the harshest ambient conditions, such as at low temperatures or high mechanical loads (aerospace applications, for example). This is made possible by, among other things, a robust stainless steel housing and the omission of adhesives in its assembly.

The motor is equipped, as standard, with digital hall sensors. High resolution optical and magnetic encoders are also easily fitted to the rear multi-function flange. As an option, the motor is available with analogue (linear) hall sensors that can replace an encoder in many applications.

A large selection of performance optimised precision gearheads rounds off the complete drive system.

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