Did You Know? 🔍Instead of relying on physical weights, home gym equipment utilizes electromagnetic resistance powered by BLDC motors to create the force you feel when lifting or pulling.
Have you ever wondered how you can lift up to 90 kilograms with a fairly small gym machine? Or how much resistance your home exercise bike can exert as if you were climbing the steepest hill? That’s the advantage of electromagnetic resistance—a technology revolutionizing modern gym equipment by replacing traditional weights with a digital resistance system.
Within a smart cable machine, a rowing machine, or a treadmill are BLDC motors that create this electromagnetic resistance using precise control of their magnetic fields.
BLDC motors consist of a stator (the stationary part) and a rotor (the moving part). The stator has coils that generate a rotating magnetic field when powered while the rotor tries to follow this magnetic field with its permanent magnets.
By adjusting the amount of electrical current flowing through the coils, the motor can increase or decrease resistance. A higher current means a stronger opposing magnetic field which creates greater resistance. A lower current means a weaker opposing magnetic field which creates less resistance.
As an advantage of BLDC-driven resistance systems, they can change instantly with digital controls such as buttons, remote controls, applications, or sometimes even automatically based on body conditions. This provides safety and practicality as it eliminates the manual adjustment of weight stacks.
Additionally, the resistance level can be fine-tuned in small increments to match the users’ needs, making every workout more efficient and customizable.
Some systems, such as rowing machines or exercise bikes can use these motors as generators to absorb energy and create resistance. This helps simulate real-life forces like a strong stream or a steep hill, while also providing energy efficiency.
Lin Engineering specializes in high-performance frameless BLDC motors, perfectly suitable for electromagnetic resistance systems. With seamless integration and compact design, Lin Engineering motors deliver precision, efficiency, and reliability.
To enhance motor performance and efficiency, Lin Engineering can customize the winding to ensure it operates at peak efficiency under its intended workload. This means that the motor will not be overworked and power consumption will be reduced.
Lin Engineering also has a variety of custom motor components for seamless integration into any design, providing optimal support and perfect fit from the start of your projects.
Discover Lin Engineering’s wide portfolio of motors for motion control: