CD-U2 Series Harmonic Drive (Strain Wave Gear Reducer)

CD-U2 Series Harmonic Drive (Strain Wave Gear Reducer)

The CD-U2 Series Harmonic Drive Reducer is a precision gear component used in various applications that require high torque, compact size, and precise motion control. Harmonic Drive, also known as strain wave gearing, is a type of gear mechanism that uses flexible components to achieve high gear reduction ratios with exceptional accuracy and repeatability.The CD-U2 Series is an advanced version of the traditional Harmonic Drive design, incorporating improvements in performance, durability, and ease of use. It is widely used in robotics, aerospace, automation, and other industries where precise motion control is crucial.The main components of a CD-U2 Series Harmonic Drive Reducer include a wave generator, flex spline, and circular spline. The wave generator is connected to the input shaft and produces a wave-like motion that deforms the flex spline. This deformation causes the teeth of the flex spline to engage with the teeth of the circular spline, creating torque transmission.The unique design of the CD-U2 series harmonic drive reducer ensures zero backlash, which means there is no play or lost motion between the input and output shafts. This is achieved by the preloading of the flex spline against the circular spline, resulting in highly accurate positioning and repeatability.

CD-U2 Series Harmonic Drive Reducer Features:

1. Increased load carrying capacity of main bearing2. Hollow bore structure3. High rigidity4. No backlash5. Reduced axial height without compromising performance 50% shorter

CD-U2 Series Harmonic Drive Reducer Structure:

CD-U2 Series Harmonic Drive Reducer Naming Rules:

CD-U2 Series Harmonic Drive Reducer Specifications:

CD-U2 Series Harmonic Drive Reducer Starting Torque Table:

reduction ratio/models	14	17	20	25	32
050	5.3	7.5	9.7	17	34
080	3.8	4.9	6.2	11	23
100	3.2	4.2	5.5	9.6	21
120	-	4.0	4.8	8.6	18
160	-	-	4.1	7.4	16

CD-U2 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	0.050	0.0018	57.8 X 10^2	90 X 10^2	91	12.8 X 10^4
17	0.060	0.0123	104 X 10^2	1 63 X 10^2	124	15.4 X 10^4
20	0.070	0.0128	146 X 10^2	220 X 10^2	187	25.2 X 10^4
25	0.085	0.0140	218 X 10^2	358X 10^2	258	39.2 X 10^4
32	0.111	0.0168	38 2 X 10^2	654 X 10^2	580	100 X 10^4

CD-U2 Series Harmonic Drive Reducer Dimensions:

CD-U2 Series Harmonic Drive Reducer Size Chart:

Benefits of CD-U2 Series Harmonic Drive Reducer:

The CD-U2 Series Harmonic Drive Reducer offers several benefits that make it a preferred choice for many applications. Here are some of the key advantages:1. High Precision: The CD-U2 Series Harmonic Drive Reducer provides exceptional precision and repeatability in motion control. Its zero-backlash design ensures accurate positioning and eliminates any play or lost motion between the input and output shafts. This precision is crucial in applications that require accurate and repeatable movements.2. Compact Size: The CD-U2 Series offers a high gear reduction ratio in a compact form factor. This compactness is useful in applications where space is limited, allowing for efficient design and integration into tight spaces. The reduced size also helps in reducing the overall weight of the system.3. High Torque Capacity: Despite its compact size, the CD-U2 Series has a high torque capacity. It can transmit high levels of torque, enabling powerful and precise motion control. This makes it suitable for applications that require high torque output, such as robotics, automation, and machinery.4. Zero-Backlash Operation: The preloaded flex spline design of the CD-U2 Series Strain Wave Gearbox ensures zero-backlash operation. Backlash refers to the lost motion or play between gear teeth when the direction of rotation is reversed. Zero-backlash operation is critical for applications that require precise and responsive motion control, as it eliminates any error or positioning inaccuracies caused by the backlash.5. Long Operating Life: The CD-U2 Series Harmonic Drive is built with high-quality materials and undergoes rigorous manufacturing processes, ensuring durability and long operating life. The components are designed to withstand high loads, resist wear, and operate smoothly over extended periods. This reduces maintenance requirements and increases the overall reliability of the system.6. Customization Options: The CD-U2 Series Strain Wave Gear Reducer offers customization options to meet specific application requirements. It can be configured with different gear ratios, input and output shaft configurations, and mounting options. This flexibility allows for seamless integration with various motors and controllers, enabling the creation of customized motion control systems.7. Wide Range of Applications: The CD-U2 Series Harmonic Drive Reducer finds applications in diverse industries, including robotics, aerospace, automation, precision machinery, and more. Its versatility and performance characteristics make it suitable for applications that demand precise motion control, compact size, and high torque output.

Applications of CD-U2 Series Harmonic Drive Reducer:

The CD-U2 Series Harmonic Drive Reducer finds applications in various industries and fields that require precise motion control and high torque transmission. Some of the common applications include:(1) Robotics: The CD-U2 Series is widely used in robotics applications, including industrial robots, collaborative robots (cobots), robotic arms, and humanoid robots. Its compact size, high torque capacity, and precision make it ideal for achieving accurate and repeatable movements in robot joints and end-effectors.(2) Automation and Machinery: The CD-U2 Series Strain Wave Gear Reducer is utilized in automation systems and machinery where precise motion control is essential. It can be found in applications such as pick-and-place machines, CNC machining centers, packaging equipment, semiconductor manufacturing, and assembly systems. The zero-backlash operation and high torque capability ensure accurate positioning and smooth operation.(3) Aerospace and Defense: The aerospace and defense industries often require reliable and precise motion control components. The CD-U2 Series is used in applications such as satellite tracking systems, antenna positioning, camera gimbals, flight simulators, and unmanned aerial vehicles (UAVs). Its compactness, lightweight design, and high torque capacity make it well-suited for these demanding applications.(4) Medical and Rehabilitation Devices: The CD-U2 Series Strain Wave Gearbox is used in medical equipment and rehabilitation devices that require precise and controlled movements. It can be found in applications such as surgical robots, medical imaging devices, prosthetic limbs, exoskeletons, and rehabilitation equipment. The high precision and compact size of the CD-U2 Series are beneficial for achieving accurate and smooth motion in these applications.(5) Precision Instruments: The CD-U2 Series Harmonic Drive is utilized in various precision instruments that require precise positioning and motion control. Examples include scientific instruments, optical devices, telescope mounts, 3D printers, and measuring equipment. Its high precision and zero-backlash operation ensures accurate and repeatable movements, critical for achieving reliable measurements and performance.(6) Automotive Industry: The CD-U2 Series Harmonic Drive Reducer is employed in the automotive industry for applications such as robotic assembly systems, automated testing equipment, and precision positioning mechanisms. Its compact size, high torque capability, and precision make it suitable for these applications, providing efficiency and accuracy in automotive manufacturing processes.

Robotic Arms	Precision Instruments

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.