Slew drives
Slew drives are used in applications that make rotating movements (slewing). Slew drives, also referred to as slewing gear, is a complete ready to install system that consist of a ball or roller slewing ring bearing, drive train and completely enclosed housing. They can be customized with hydraulic or electric motors, brakes, planetary gearboxes and many other options.
Looking for a slewing drive with an excellent price-quality ratio? RR Holland has the right technical products for your application. Thanks to our many years of experience, we have all the knowledge in house and are glad to advise you on the most suitable product for your specific use case.
Applications for slew drives
Slewing drives are essential for a wide range of situations and industrial machines. Common applications include:
- Industrial machinery
- Agricultural machinery
- Large winches, large container handlers and excavators
- Factory installations
- Industrial cranes
- Ship cranes and wind turbines
Slewing drives for the marine, offshore and wind energy sector
In addition to the applications above, slewing drives are also widely used in the marine and offshore sector for example in ship cranes and, as a yaw drive, in wind turbines. A yaw drive rotates the nacelle of a wind turbine into the wind and is one of the most demanding rotating-drive applications there is: continuous exposure to salt water, corrosion and shock loads offshore, combined with the requirement for a long, low-maintenance service life.
With more than 25 years of technical expertise, RR Holland focuses on maximum reliability for these applications, to minimise the risk of unplanned downtime and extend maintenance intervals. Want to know more about our products for the marine and offshore sector, or discuss a yaw drive project? Contact RR Holland for advice.
Extensive range of slew drives
Our series of slewing drives offer 13 different sizes with torques between 1,200 Nm and 230,000 Nm. The reinforced output side, as well as the compact dimensions of this series, ensure good reliability at high radial forces. All sizes are available in integral pinion or loose pinion version. All cabinets can also be equipped with a wide range of components and brakes. This ensures that you will always find suitable slewing gear at RR Holland.
| MODEL | T2 FEM (Nm) | PEAK STATIC TORQUE (NM) | RATIO | PINION MODULES |
|---|---|---|---|---|
| RR 1800 | 17000 ÷ 27000 | 40000 | 25 ÷ 307 | 12 ÷ 16 |
| RR 2500 | 20000 ÷ 34000 | 70000 | 30 ÷ 351 | 16 ÷ 18 |
| RR 3200 | 25000 ÷ 44000 | 80000 | 32 ÷ 286 | 16 ÷ 18 |
| RR 4000 | 35000 ÷ 59000 | 100000 | 29 ÷ 272 | 16 ÷ 22 |
| RR 5200 | 46000 ÷ 76000 | 120000 | 30 ÷ 257 | 16 ÷ 22 |
| RR 6500 | 65000 ÷ 100000 | 160000 | 65 ÷ 294 | 18 ÷ 24 |
| RR 8000 | 64000 ÷ 112000 | 200000 | 67 ÷ 242 | 20 ÷ 24 |
| RR 10000 | 89000 ÷ 143000 | 230000 | 67 ÷ 229 | 20 ÷ 24 |
Certified slew drives
RR Holland only works with certified products. This is why we can guarantee that all of our products, including our offer of slewing drives, are of the highest quality. Certifications from the leading bodies are available upon request. All our products comply with the laws and regulations of the Netherlands and Europe. In addition, we offer a full service where we can supply, assemble and maintain all products ourselves.
Why order your slewing drive from RR Holland?
- 25+ years of experience in drive technology, since RR Holland was founded in Oosterhout
- Made in Italy quality: Reggiana Riduttori S.R.L., founded in 1965 in Reggio Emilia, part of Interpump Group
- In-house assembly and a large modular stock: fast delivery at any time
- Custom solutions possible: in-house engineering capacity with 2D and 3D drawings
- Worldwide network: the RR family has more than a dozen locations worldwide
- Certified quality, in line with Dutch and European laws and regulations
Contact RR Holland
Would you like to receive more information about slewing gear from RR Holland? You can easily contact us via the contact form. You can also contact us directly by telephone on +31(0)162 45 63 97 or by emailing info@rrholland.nl. We have many products in stock in our warehouse and can therefore provide you of the right products whenever you need them. This way your new products can be up and running in your machine in a short amount of time.
Frequently asked questions about slewing drives
What is a slewing drive?
A slewing drive — also called a slew drive or slewing gear — is a compact drive unit whose output shaft carries a pinion, so it can be mounted directly onto a slewing ring gear. These drives are used in applications that require a rotating movement, such as industrial machinery, agricultural machinery and cranes.
Which sizes and torque ratings are available?
Our planetary series for slewing drives offers 13 different sizes with torque ratings between 1,200 Nm and 230,000 Nm. All sizes are available with an integral pinion or a separate pinion.
What are the advantages of a slewing drive from RR Holland?
RR Holland supplies slewing drives with an excellent price-quality ratio. Thanks to our years of experience, we have all the knowledge in house and are glad to advise on the most suitable product for your specific application. We also supply products that complement your slewing drive.
Can an RR Holland slewing drive be used in the marine or offshore sector, for example as a yaw drive?
Yes. RR Holland slewing drives are used, among other things, in ship cranes and, as a yaw drive, in wind turbines. For this sector we focus on maximum reliability under demanding conditions such as corrosion, salt water and shock loads, to extend maintenance intervals and prevent unplanned downtime.
Does RR Holland also supply custom slewing drives?
Yes. RR Holland has in-house engineering capacity and can supply 2D and 3D drawings for custom solutions. Contact us to discuss the options for your specific application.