CD-U1 Series Harmonic Drive (Strain Wave Gear Reducer)

CD-U1 Series Harmonic Drive (Strain Wave Gear Reducer)

The CD-U1 Series Harmonic Drive Reducer is a type of precision gear mechanism that is widely used in various industries, including robotics, automation, aerospace, and medical equipment. Harmonic Drive Reducers are known for their high precision, compact design, and excellent torque-to-weight ratio. This series is designed to provide high torque transmission and accurate motion control in a compact package. It is commonly used in applications where space is limited, and precise positioning is crucial.The CD-U1 Series features a unique gear mechanism called a harmonic drive. It consists of three main components: a wave generator, a flex spline, and a circular spline. The wave generator is connected to the input shaft and generates a wave motion, which causes the flex spline to deform and engage with the circular spline. This engagement creates a reduction in speed and an increase in torque. One of the key advantages of the CD-U1 Series Harmonic Drive Reducer is its high gear ratio. It can achieve gear ratios ranging from 30:1 to 160:1, allowing for precise control of rotational speed and torque.In addition to its compact size and high gear ratio, the CD-U1 Series offers other benefits such as zero backlash, high torsional stiffness, and high positional accuracy. These features make it suitable for applications that require precise motion control, such as robotic arms, CNC machines, and satellite tracking systems.

CD-U1 Series Harmonic Drive Reducer Features:

1. Ultra-flat structure2. High torque capacity3. High rigidity4. No backlash5. 50% reduction in axial height without compromising performance

CD-U1 Series Harmonic Drive Reducer Structure:

CD-U1 Series Harmonic Drive Reducer Naming Rules:

CD-U1 Series Harmonic Drive Reducer Specifications:

CD-U1 Series Harmonic Drive Reducer Starting Torque Table:

reduction ratio/models	14	17	20	25	32
050	4.4	6.7	8.9	16	32
080	3.2	4.4	5.7	10	22
100	2.8	3.8	5.1	9.1	20
120	-	3.6	4.5	8.2	17
160	-	-	3.9	7.2	15

CD-U1 Series Harmonic Drive Reducer Crossed Bearing Performance:

Models	Roller pitch circle diameter	offset	Basic load rating		Allowable Moment Load Mc	Torque rigidity Km
	dp	R	Basic dynamic rated load cr	Basic static load rating	Nm	Nm/rad
	m	m	N	N
14	0.035	0.0095	47 X 10^2	60.7 X 10^2	41	4.38 X 10^4
17	0.0425	0.0099	5 2.9 X 10^2	75.5 X 10^2	64	7.75 X 10^4
20	0.050	0.0102	5 7.8 X 10^2	90 X 10^2	91	1 2.8 X 10^4
25	0.062	0.0130	96 X 10^2	151 X 10^2	156	24.2 X 10^4
32	0.080	0.0144	15.0 X 10^2	250 X 10^2	313	53.9 X 10^4

CD-U1 Series Harmonic Drive Reducer Dimensions:

CD-U1 Series Harmonic Drive Reducer Size Chart:

CD-U1 Series Harmonic Drive Reducer Working Principle:

The CD-U1 Series Harmonic Drive Reducer operates based on a principle called harmonic gearing. It consists of three main components: a wave generator, a flex spline, and a circular spline. The interaction between these components creates a reduction in speed and an increase in torque.Here's a step-by-step explanation of how the CD-U1 Series Harmonic Drive Reducer works:1. Wave Generator: The wave generator is connected to the input shaft and has a unique shape that resembles a wave. When the input shaft rotates, it causes the wave generator to generate a wave-like motion.2. Flex Spline: The flex spline is a thin, flexible ring with external teeth. It is positioned around the wave generator and is designed to deform when the wave generator creates the wave motion. The deformation of the flex spline causes its teeth to engage with the teeth of the circular spline.3. Circular Spline: The circular spline is a rigid ring with internal teeth. It is located around the flex spline and has one tooth fewer than the flex spline. The teeth of the circular spline are offset from the teeth of the flex spline.4. Engagement: As the wave generator creates the wave motion, the flex spline deforms and its teeth engage with the teeth of the circular spline. The engagement occurs at multiple points around the circumference of the circular spline.5. Transmission of Motion: When the teeth of the flex spline engage with the teeth of the circular spline, they transfer the rotational motion from the input shaft to the output shaft. The engagement between the teeth of the flex spline and the circular spline creates a reduction in speed and an increase in torque. The gear ratio is determined by the number of teeth on the flex spline and the circular spline.6. Output Shaft: The output shaft is connected to the circular spline and receives the motion and torque from the input shaft. The output shaft rotates at a reduced speed compared to the input shaft but with increased torque.

CD-U1 Series Harmonic Drive Reducer Applications:

The CD-U1 Series Harmonic Drive Reducer finds applications in a wide range of industries and systems where precise motion control, compact size, and high torque transmission are required. Some of the common applications include:(1) Robotics: The CD-U1 Series Strain Wave Gear Reducer is widely used in robotics for applications such as robotic arms, grippers, joints, and humanoid robots. Its compact design, high torque-to-weight ratio, and precise motion control make it suitable for achieving smooth and accurate movements in robotic systems.(2) Automation and Machinery: The CD-U1 Series Harmonic Drive Reducer is utilized in various automated systems and machinery, including pick-and-place machines, assembly systems, packaging equipment, and material handling systems. It enables precise positioning, high torque transmission, and reliable motion control in these applications.(3) Aerospace and Defense: The aerospace and defense industries utilize the CD-U1 Series in applications like satellite tracking systems, antenna positioning, and unmanned aerial vehicles (UAVs). Its lightweight construction, high positional accuracy, and ability to withstand harsh environments make it suitable for aerospace and defense applications.(4) Medical Equipment: The CD-U1 Series is employed in medical devices and equipment such as surgical robots, medical imaging systems, and rehabilitation devices. Its compact size, precise control, and high torque capacity contribute to the accuracy and reliability required in medical applications.(5) Precision Machinery: The CD-U1 Series Strain Wave Gear Reducer is utilized in precision machinery and equipment, including CNC machines, milling machines, and grinding machines. Its ability to provide high torque transmission, zero backlash, and precise positioning enables the production of high-quality and intricate parts.(6) Semiconductor Manufacturing: The CD-U1 Series is used in semiconductor manufacturing equipment for applications such as wafer handling, chip testing, and inspection systems. Its precise motion control and compact design help ensure accurate positioning and alignment of semiconductor components.(7) Industrial Automation: The CD-U1 Series is employed in various industrial automation applications, including rotary tables, indexing systems, and positioners. It enables precise angular positioning, smooth motion, and high torque transmission in these systems.

Robotics	Medical Equipment

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, 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.