SF/SG-U1 Series Harmonic Drive (Strain Wave Gear Reducer)

SF/SG-U1 Series Harmonic Drive Reducer

The SF/SG-U1 series harmonic drive reducer is a type of precision gear system used in various industrial applications. The design of the SF/SG-U1 series harmonic drive incorporates three main components: a wave generator, a flex spline, and a circular spline. The wave generator consists of an elliptical cam that deforms under external forces, creating a wave motion. This wave motion is transmitted to the flex spline, which is a thin-walled, flexible, cup-shaped component with external teeth. The circular spline, which has internal teeth, meshes with the flex spline and provides the housing for the system.The interaction between the wave generator and the flex spline causes the flex spline to engage with the circular spline in a unique manner. This engagement generates a high gear reduction ratio with minimal backlash, resulting in precise and smooth motion transfer. The SF/SG-U1 series harmonic drive reducers typically offer reduction ratios ranging from 30:1 to 160:1, allowing for fine control and accurate positioning.One notable feature of the SF/SG-U1 series harmonic drive reducer is its ability to achieve high torque transmission in a compact form factor. This makes it well-suited for applications where space is limited, such as robotic joints or actuators. Additionally, the reducers offer excellent repeatability and positional accuracy, making them suitable for tasks that require precise positioning, such as CNC machines or telescopes.The SF/SG-U1 series harmonic drive reducers can be customized with various options and accessories to meet specific application requirements. These options may include different input/output shaft configurations, motor adapters, or environmental protection features.

SF/SG-U1 Series Harmonic Drive Reducer Features:

1. large diameter - hollow hole structure2. Simple design of Tight Creek3. High torque capacity4. high rigidity5. No backlash6. Input and output coaxial

SF/SG-U1 Series Harmonic Drive Reducer Structure:

SF/SG-U1 Series Harmonic Drive Reducer Naming Rules:

SF/SG-U1 Series Harmonic Drive Reducer Specifications:

SF/SG-U1 Series Harmonic Drive Reducer Working Principle:

There are three basic elements in the Harmonic Drive Gearbox: a circular spline, a flex spline, and a wave generator. These three components interact in such a way that helps in achieving high reduction ratios.Wave Generator – A Wave Generator is an assembly of bearings and a circular disk known as a wave generator plug. The outer surface of this plug has an elliptical shape, which is manufactured with the utmost care. The ball bearing, which is specifically designed, is mounted and pressed around this plug, which results in the bearing complying with the shape of an elliptical wave generator plug. The Wave generator is basically the input of the Harmonic Gearbox assembly.Flexspline – The flex spline is the thin-walled steel cup with teeth machined on the outer surface at the edge of the cup. This cup edge can deflect or be flexible and still remain torsionally stiff enough to transmit motion. The wave generator is inserted inside the flex spline and takes the shape of an elliptical wave generator disk ring. The flex spline usually works towards the output part of the mechanism.Circular spline – The circular spine is the internal gear machined ring and is usually fixed or Rigid ( does not rotate ). The Circular spline has an internal tooth that meshes with the external teeth of the flex spline. The flex spline is usually less in diameter than internal gearing and has fewer teeth than the circular spline ( Internal Gear ). The wave generator acts as a link within the two rollers that rotates within the flex spline, causing it to mesh with the circular spline progressively at diametrically opposite points. If the wave generator rotates clockwise, the flex spline will rotate and roll inside the circular spline at a much slower rate in the counterclockwise direction.The wave generator is rotated by a motor, which creates a wavelike motion to the flex spline. This results in the meshing of the external teeth of the flex spline with the internal teeth of the circular spline. As the flex spline has two fewer teeth than the circular spline, tooth disengagement takes place, and each revolution of the wave generator causes two tooth displacements of the flex spline in relation to the circular spline. With the help of this mechanism, the Harmonic Reducer acts as a speed reducer. The difference in the teeth of the circular spline and the flex spline results in the ratio of the input speed to the output speed.

SF/SG-U1 Series Harmonic Drive Reducer Advantages:

The SF/SG-U1 series harmonic drive reducer offers several advantages that make it a popular choice in various industries. Here are some key advantages of the SF/SG-U1 series harmonic drive reducer:1. Compact Size: The SF/SG-U1 series harmonic reducers are designed to be compact, allowing for efficient use of space in applications where size is a constraint. The compact design is particularly beneficial in robotic systems or other mechanisms with limited space availability.2. High Torque Capacity: Despite their small size, the SF/SG-U1 series harmonic drive reducers can handle high torque loads. This high torque capacity makes them suitable for applications that require powerful and precise motion control, such as industrial robots, machine tools, or aerospace systems.3. Precise Positioning: The harmonic drive technology used in the SF/SG-U1 series strain wave gear reducer ensures exceptional positional accuracy and repeatability. The absence of backlash in the gear mechanism enables precise and repeatable positioning, which is crucial in applications that require high precision, such as CNC machining or telescopes.4. Zero-Backlash: Backlash, which is the play or clearance between mating gears, can cause inaccuracies and positioning errors. The SF/SG-U1 series harmonic drive reducers minimize or eliminate backlash, ensuring precise and reliable motion transfer without any lost motion.5. High Efficiency: The harmonic drive design of the SF/SG-U1 series strain wave gear reducer provides high transmission efficiency. This means that a significant portion of the input energy is effectively transmitted to the output, resulting in minimal power loss during operation.6. Customization Options: The SF/SG-U1 series strain wave gearbox offers various customization options, allowing the reducers to be tailored to specific application requirements. These options may include different input/output shaft configurations, motor adapters, or environmental protection features.

SF/SG-U1 Series Harmonic Drive Reducer Applications:

The SF/SG-U1 series harmonic drive reducers find applications in a wide range of industries that require precise and reliable motion control. Some common applications of the SF/SG-U1 series harmonic drive reducer include:(1) Robotics: The compact size, high torque capacity, and precise positioning capabilities of the SF/SG-U1 series harmonic drive make them ideal for use in robotic systems. They are commonly used in robot joints, robotic arms, and humanoid robots, enabling precise and smooth movement with high torque output.(2) Aerospace: The SF/SG-U1 series harmonic drive reducers are utilized in various aerospace applications, including satellite systems, space exploration rovers, and actuation systems for aircraft control surfaces. Their compact design, high torque capacity, and reliability make them well-suited for the demanding requirements of the aerospace industry.(3) Industrial Automation: The SF/SG-U1 series harmonic reducers are commonly employed in industrial automation systems, such as CNC machines, robotic assembly lines, and pick-and-place systems. Their high positional accuracy, zero-backlash operation, and customization options make them suitable for applications that require precise motion control in manufacturing processes.(4) Semiconductor Manufacturing: In the semiconductor industry, where precision and accuracy are crucial, the SF/SG-U1 series harmonic drive reducers are used in wafer handling systems, precision robotics, and other equipment. Their ability to provide precise positioning and repeatable motion ensures the accuracy required for semiconductor fabrication processes.(5) Medical Equipment: The SF/SG-U1 series reducers are employed in medical devices and equipment, including surgical robots, medical imaging systems, and patient positioning systems. Their compact size, high torque capacity, and precise motion control make them valuable in medical applications where accuracy and reliability are paramount.

Robotics	Aerospace

Why Choose  Raydafon's Harmonic Drive Reducer?

Raydafon Technology Co., Ltd. is a gearbox manufacturer with a core supply system, and has more than 8,000 cooperating customers. Since its establishment, Raydafon has joined hands with partners in the industry to build factories all over the country, introduced advanced production equipment and precision monitoring equipment, and continuously innovated, researched and developed, and perfected its products. Raydafon provides domestic and foreign customers with a comprehensive range of gearmotors and a diversified range of gearboxes to meet the different needs of customers in various fields.Our main products include: planetary gearboxes, RV gearboxes, hollow rotary platforms, miniature gearboxes and matching speed controllers, miniature gearmotors, worm gearboxes, DC brushless gearmotors, three-phase asynchronous motors, vertical and horizontal gearmotors, torque reducers, cross steering gearboxes, harmonic reducers, and other series of gearmotors and their matching products. Many of them are of modularized design. Adopting new equipment and new technology, the products have better internal quality, smaller volume, lighter weight and more beautiful appearance. The products are widely used in: lithium equipment, laser equipment, engineering equipment, CNC machine tools, machinery production, non-standard automation, automobile manufacturing, aviation field, printing machinery, paper making, robotics, packaging machinery, filling, solar energy equipment, medical and pharmaceutical, testing instruments and many other industries.