Планетарные и циклоидальные редукторы

Understanding the differences between cycloidal gearboxes and planetary gearboxes

Cycloidal gearboxes are compact, powerful and rugged, and are used in a wide range of industrial and commercial applications. Planetary gearboxes can also generate high torque, and are also commonly used by all sorts of business, so how do you choose between them?

Transcyko are experts in matching our planetary gearboxes and cycloidal gearboxes to the general and specific requirements of our global customers. Because we manufacture cycloidal gearboxes and planetary gearboxes, our customers frequently ask us what the difference is between them and which type would be best for them, so let’s see if we can answer these questions!

We’ve been making gearboxes for forty years, so we think it’s pretty obvious what the differences are, but we want our customers to feel as informed as possible when they come to make decisions about the best way to meet their needs.

How do planetary and cycloidal gearboxes compare?

There are a huge number of different machines on the market. This means that even though each one is best suited for a specific type of gearbox it can be difficult to explain why. That’s why we’ve put together a table to compare planetary and cycloidal gearbox features and capabilities for a gearbox of the same physical dimensions.

We can see immediately that the cycloidal gearbox seems to win over the planetary gearbox in every category except torque capability. Although a cycloidal gearbox is more durable and can resist very high torque loadings, it is not able to transmit as much torque as a planetary gearbox of the same size.

Remember, it does depend on the application to decide which of the characteristics is really important. The high movement precision of cycloidal gearboxes makes them perfect for stop-start servo motors, but if you don’t need high precision a planetary gearbox will work just as well.

Cycloidal gearboxes have a smaller footprint than planetary gearboxes, so if you have plenty of space you can use a bigger planetary gearbox to get the reduction ratio you need, even if you could use a smaller cycloidal gearbox for the same job.

It sometimes might be more cost effective to use a bigger standard planetary gearbox instead of a high performance, compact, cycloidal gearbox. Consider how the relative features work for your own application before making a decision. Of course you can always contact us to help you work out your requirements!

If gearboxes were cars

How do planetary gearboxes and cycloidal gearboxes work?

Both planetary gearboxes and cycloidal gearboxes do the same thing, they convert the rotational movement of an input shaft into rotational movement at the output at a different speed. The change in speed between input and output changes the torque that the gearbox provides at the output.

Planetary and cycloidal gearboxes differ in the way the internal components convert the inputs into outputs:

• Cycloidal gear elements roll around each other
• Contact surfaces between cycloidal gears are large
• Forces are distributed evenly through the cycloidal gear system
• Planetary gear elements engage a small number of teeth to move each other
• The movement of planetary gears is called ‘swiping’
• Contact surfaces in planetary gear systems are small
• Forces in planetary gear systems are concentrated where teeth connect

What’s inside planetary gearboxes?

How do cycloidal gearboxes work?

What major industries depend on cyclo drives?

• Автомобильное производство
• Конвейеры для производственных линий
• Обработка посылок
• Автоматизация

• Робототехника
• Пищевая промышленность
• Текстильное производство
• Laminating Machine

Transcyko: the one-stop solution for your cycloidal gearbox needs

Three reasons to choose Transcyko for gearboxes, drives & speed reducers

Contact us to discover how we can add value to your business with our cycloidal gearboxes and drives. Our customer service team is always happy to provide expert answers to your queries.