How to choose an RV reducer Gearbox?

This article will explain the key selection points, advantages and disadvantages, brands and suppliers, as well as the differences between RV reducer gearboxes and harmonic drives.

What Are the Four Most Important Points When Selecting an RV Reducer Gearbox?

First, determine what equipment the precision RV reducer will be used for and what the working conditions are.

Second, confirm the product load in kilograms and whether the installation method is side-mounted or horizontal, as this directly affects torque and bending moment calculations.

Third, select the appropriate model based on calculations.

Fourth, after selecting a model, it may still need to be changed if the installation space is limited or if the reducer is too heavy, in which case other types of reducers should be considered.

What Is the Difference Between an RV Reducer Gearbox and a Harmonic Drive?

The RV reducer gearbox uses a small tooth difference meshing principle. Compared with harmonic drives, RV reducers typically adopt a cycloidal pinwheel structure and are composed of a cycloidal gear and a planetary carrier. In comparison with harmonic drives, the key factors of an RV reducer lie in its manufacturing and assembly processes. RV reducers offer higher fatigue strength, rigidity, and longer service life. Unlike harmonic drives, their motion accuracy does not significantly decrease over time. However, their disadvantages include heavier weight and larger size. RV reducers are commonly used in robot joints that require high torque, such as the legs, waist, and elbows of robots. In heavy-duty industrial robots, the first, second, and third axes usually use RV reducers.

What Are the Advantages and Disadvantages of an RV Reducer Gearbox?

The advantages of RV reducer gearboxes are their superior fatigue strength, rigidity, and long service life, making them widely applicable to various joints of industrial robots.

The disadvantages of RV reducers are that, due to their multi-stage gear and cycloidal pinwheel structure, they are larger and heavier than harmonic drives and planetary gearboxes. Their structure is more complex, making system integration more difficult. In addition, it is harder for them to achieve precise force control compared with harmonic drives.

Which Brand of RV Reducer Gearbox Is Better to Choose?

When it comes to RV reducer gearboxes, the first brand that comes to mind is Nabtesco. Indeed, Nabtesco currently holds the largest market share and was one of the earliest manufacturers to develop RV reducer gearboxes. Later entrants such as HONPINE have grown by building on the foundation established by industry leaders. At present, HONPINE has begun mass production of its RV reducer gearboxes in the E series and C series, while the N series is still in the internal testing stage.

When recommending RV reducers to customers, Honpine provides one-on-one selection services based on the actual application scenario and motor model. Contact Honpine for more information on RV reducer gearboxes.