RV Strain Wave Reducer

RV Strain Wave Reducer , also named as Rotary Vector Reducer, is a precision transmission device composed of cycloidal pinwheels and planetary supports. It has the advantages of compact structure, high transmission ratio, high torsional stiffness, high accuracy, low vibration, and low noise. RV Strain Wave Reducer is commonly used in the high load joint parts of industrial robots such as the waist and shoulders, and can withstand large impact loads.

Harmonic reducer, also known as Strain Wave Gearing or Harmonic Drive, is mainly composed of rigid wheels, flexible wheels, and wave generators. It uses a wave generator to generate controllable elliptical transformations on the flexible wheel, gradually meshing and separating the flexible wheel and the rigid wheel teeth, thereby achieving precise changes in speed and torque. Its characteristics are compact structure, light weight, and high transmission accuracy, but its load-bearing capacity is relatively small compared to RV reducers. It is generally used in robot end joints or small robots with small loads.

RV Strain Wave Reducer is a high-precision deceleration device that combines the technical characteristics of RV Cycloidal Drive and Strain Wave Gear. It is mainly used in industrial automation scenarios that require ultra-high precision, high rigidity, and compact structures, such as collaborative robots (Cobots), medical robotic arms, semiconductor equipment, etc.

The core structure of the RV Strain Wave reducer integrates two deceleration technologies: the planetary gear and cycloidal pinwheel structure of the RV reducer (Cyclic Drive), providing high reduction ratio (30:1~300:1) and high torque carrying capacity. Suitable for heavy-duty, high dynamic response scenarios (such as robot J1/J2 axes). The harmonic reducer (Strain Wave Gear) is composed of flexible wheels (Flexspline), rigid wheels (Circular Spline), and wave generators, which use elastic deformation transmission. Providing zero backlash and ultra-high precision (<1 arc minute), suitable for lightweight and compact applications (such as robot end joints).

RV Strain Wave Reducer hybrid transmission principle: Input stage (RV reduction): The motor drives the planetary gear and cycloidal gear for initial reduction. Output stage (harmonic reduction): The cycloidal gear drives the harmonic reduction mechanism through a flexible connection, further reducing the speed and improving accuracy. Final output: Combining the advantages of two deceleration methods to achieve ultra-high precision, high rigidity, and high torque.

Here In this page, we introduce E serial RV Reducers from TallMan Robotics, which is the top leading manufacturer of RV Gearboxes, you will see data sheet, production pictures,videos as follows:

Also You are welcome to watch more projects or visit our video gallery by Youtube: https://www.youtube.com/@tallmanrobotics

What are the main applications of RV Strain Wave Reducer?

1).Collaborative Robot (Cobot): Balancing high precision and lightweight, suitable for human-machine collaboration scenarios.

2).Medical robots: surgical robotic arms, rehabilitation equipment, requiring vibration free and ultra-high precision.

3).Semiconductor equipment: wafer handling, lithography machine positioning, requiring nanoscale motion control.

4).Aerospace: Satellite antenna drive, space robotic arm, required to withstand extreme environments.

RV Strain Wave Reducer is a technology fusion of RV reducer and harmonic reducer, which combines the advantages of high rigidity, ultra-high precision, and lightweight. It is particularly suitable for high-end fields such as collaborative robots, medical equipment, and semiconductor manufacturing. With the upgrading of precision manufacturing industry, it may become the mainstream deceleration solution for the next generation of robot joints.