In manufacturing equipment and industrial equipment, couplings (shaft couplings) are used to accurately transmit power from a motor to a driven shaft. A coupling is a mechanical component that connects the drive shaft and the driven shaft, serving functions such as absorbing mounting misalignment and dampening vibrations. However, there are several types of couplings—including jaw-type, disc-type, and bellows-type—and selection must be based on the specific application and required characteristics. This article provides a systematic explanation ranging from the basic functions of couplings to their main types and characteristics, as well as key points for selection. It also summarizes how to pair couplings with motors—essential knowledge for maximizing coupling performance during motor selection.   Supervised by: C.I. TAKIRON Corporation Electronic Devices…

Moment of inertia is a physical quantity that indicates how easily a rotating object can be set in motion or brought to a stop, and it is an essential factor in motor design calculations. During motor selection, it is necessary to correctly calculate the load’s moment of inertia and estimate the required torque and acceleration/deceleration performance. If the moment of inertia is estimated incorrectly, depending on the motor type and operating conditions, this can lead to overshoot or undershoot during startup and stopping, control instability, or even operational failure. In this article, we will explain step-by-step everything from the basic definition of moment of inertia and its relationship to torque, to calculation formulas for typical motor configurations, and key points…

One of the most critical factors determining a motor’s performance is its “winding.” Windings consist of conductors—such as copper or aluminum wire—wound into coils. When an electric current flows through them, they generate a magnetic field. Through interaction with other magnetic fields (such as those from permanent magnets or other windings), they produce the rotational force that drives the motor, making them the heart of the motor.In motors used across a wide range of fields—from industrial motors to medical equipment, optical equipment, and security equipment—the materials, types, winding methods, and design of the windings directly impact performance, efficiency, durability, and reliability. This article systematically explains the knowledge that B2B engineers need to know, ranging from the basic principles of motor…

In product and mechanical design, the concept of the “safety factor” is crucial for preventing component breakage and failure. The safety factor is an indicator that specifies the margin of safety to be maintained relative to the actual load applied to materials or components, serving as a criterion for ensuring product reliability. When performing motor selection, setting an appropriate safety factor for the anticipated load is essential for extending the lifespan of the product and reducing the risk of failure. In this article, we provide an easy-to-understand explanation for beginners, covering everything from the basic definition of the safety factor to calculation methods, how to determine it in practice, and guideline values for mechanical design.   Supervised by: C.I. TAKIRON…

In the design of products powered by motors—such as industrial equipment, medical equipment, and optical equipment—the “gear reducer” is a critical component that determines performance. It is incorporated into many devices to achieve high torque output and precise positioning control that cannot be obtained from a motor alone. However, many design engineers likely have questions such as “What exactly is a gear reducer?”, “Which type should I choose?”, and “What are the optimal specifications for my product?” Selecting the wrong gear reducer can lead to risks such as operational failures due to insufficient torque, design changes caused by oversized units, and even a shortened lifespan for the product. In this article, we will explain the practical knowledge needed during the…

In the development of devices that use Micromotors or compact motors, “gearheads” are widely used to achieve the required rotational speed and torque. Also known as reduction gears, gearheads are gear mechanisms that connect to the motor’s output shaft to reduce rotational speed while increasing torque. In this article, we provide a detailed explanation—from the basics of gearheads to practical selection criteria—for engineers struggling with gearhead selection.   Supervised by: C.I. TAKIRON Corporation Electronic Devices Sales Group This article has been supervised based on the advanced technical expertise and insights we have cultivated since our founding in 1919 as a leading company in plastic processing. Our department continuously analyzes market trends and the latest technologies in ultra-compact, high-precision micro motors,…

Motors are devices that convert electrical energy into mechanical energy, and they are essential components in the development of B2B products such as medical equipment, industrial robots, and optical equipment. However, many developers likely face technical challenges such as “Which motor is best suited for medical device applications?”, “Which type should be chosen to minimize vibration and noise?”, and “How can we achieve both miniaturization and high torque?” This article explains everything from the basic principle of motor operation to specific application examples by industry sector, as well as the optimal motor selection criteria for each application. We will also introduce, with real-world examples, how Coreless motors can solve challenges in the development of medical equipment and precision equipment, where…

A BLDC motor (Brushless DC Motors) is a motor that removes the brushes and commutator from a conventional Brushed DC motor and achieves rotation through electronic control. Due to characteristics such as long service life, low noise, and high energy efficiency, their adoption is expanding across a wide range of fields, including home appliances, Industrial equipment, and automotive components. On the other hand, there are several points to consider when implementing them, such as the need for a dedicated control circuit for operation. This article explains the basic structure and operating principles of BLDC motors, their differences from Brushed DC Motors, their advantages and considerations, and their typical applications. This information will serve as a useful reference when selecting a…

Actuators play a key role in moving machinery across a wide range of fields, including manufacturing, robotics, and medical equipment.The term “actuator” is a general term for devices that use energy sources such as electricity, hydraulics, or pneumatics to move moving parts. They are widely used in everyday scenarios, such as the opening and closing mechanisms of automatic doors and the joint drives of robotic arms. While the term “actuator” is used broadly, there are multiple types—including electric, pneumatic, and hydraulic—and their mechanisms and optimal operating ranges vary. This article provides a systematic explanation of actuators, covering everything from their basic definition and the mechanisms of each type to their typical applications. We also outline key selection criteria based on…

A geared motor is a drive unit that integrates a motor and a gearhead (reduction gear). Its key feature is the ability to achieve low-speed, high-torque output—which cannot be obtained from a motor alone—in a space-saving design.They are used across a wide range of industries, from large-scale equipment such as conveyors, food processing machinery, and industrial robots, to small precision devices like medical equipment, optical equipment, and electronic locks. Various types are available depending on the application, and selecting the right model to match the required performance and installation environment is key to ensuring stable operation. In this article, we will explain the basic mechanisms and structure of geared motors, the main types of gearheads, and key selection points to…