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EGA5 Series Slewing Drive

A slewing drive is a gearbox that securely accepts radial and axial loads and transmits rotational torque. Rotation can be on a single axis or several axes collectively. Slewing drives are manufactured by manufacturing gears, bearings, seals, housings, and motors, together with other auxiliary components and assembling them right into a completed gearbox.


A slewing drive is a gearbox that securely accepts radial and axial loads and transmits rotational torque. Rotation can be on a single axis or several axes collectively. Slewing drives are manufactured by manufacturing gears, bearings, seals, housings, and motors, together with other auxiliary components and assembling them right into a completed gearbox.

Slewing drives use conventional worm technological innovation, where a worm on the horizontal shaft acts like a drive for gears. The rotation in the horizontal screw rotates the gear about an axis perpendicular to the axis of your screw. This mixture lowers the speed of your driven part and increases its torque, expanding it proportionally because the rate decreases. The pace ratio of the shaft depends upon the number of threads to the worm plus the number of teeth from the worm gear or gear.

As technological innovation advances, many more rotary drives use hourglass worm technology, shaping the worm to engage many more gears. This greater tooth engagement benefits in greater strength, efficiency, and sturdiness.

Performance Parameters


Output torque Tilting moment torque Holding torque Axial load Radial load Ratio Backlash Weight
输出转矩 倾覆力矩 保持力矩 轴向承载力 径向承载力 速比 精度 重量
600 kN.m 3000 kN.m 5500 kN.m 45 KN 22 KN 62:1 <= 0.20 ° 16Kg
443 Lbf.ft 2212.5 Lbf.ft 4056 Lbf.ft 1116 Lbf 4945 Lbf

How Does a Slewing Drive Work?

The mechanics behind it are based upon the idea of the worm gear, exactly where a slewing bearing with external teeth meshes having a complementary worm gear having a predefined transmission ratio. Internal components are contained and assembled inside cast iron or aluminum enclosures for protection and setup.

The particular style of the slewing drive permits it to transmit high output rotational torque, using two vertical planes with a relative speed ratio to its input. Because the worm gear has a very low input torque over the horizontal plane, its hardened teeth transmit the rotational motion on the outer rotating teeth. This force generates rotation regarding the vertical axis from the rotary drive with the rotary outer ring.

The worm gear design and style allow a wide range of lower torque inputs on the slewing drive to transmit or sustain higher torque applications. Slewing drives might be discovered in numerous buildings and hefty machinery tools. Versatility and excess weight allow slewing drives like an easy answer to rotation-related troubles.

Slew Drive Applications

Slewing products can be found in many applications, including:

  • Construction equipment.
  • Renewable energy solar trackers and wind turbines.
  • Turntables and welding positioners.
  • Packing and packaging equipment.
  • Assembly lines.
  • Aerial platforms.
  • Vacuum Trucks.
  • Public transportation.

Many of these applications are OEMs. Slew drives for OEMs can be customized to fit these high-volume OEM applications.

Why Choose Our Slewing Drives?

We offer the different dimensions and construction series with straight or helical gearing, an open or closed structure, and screws and casing. We use other materials when manufacturing based on the customer's requirements and operational conditions.

Our slewing drives are available in a large variety of standard design sizes. We will gladly develop a slew drive tailored to your requirements if you are looking for an individual solution.

Contact us – we will be happy to help you!


1. Where is your slew drive manufactured?

A: Our slew drives are all manufactured in China. We can design and produce slew drives, and the quality can also be guaranteed. At the same time, our slew drives price is more favorable.

2. I don't know which slew drive to use. Can you choose for me?

A: Yes, we have two product series of worm gear slew drives and spur gear slew drives. Each model has a parameter list on the website. You can choose the suitable slew drive according to these parameter lists. If you don't know how to choose, you can contact our engineers, and we will work with you to select the suitable product. We can also design a new slew drive solution for you according to your equipment.
3. Can I get your product catalog?

A: You can get our product catalog in the download or contact us. We will send the product catalog to you by email or other ways.

4. Can you customize products?

A: Yes, we can. Our engineers have an emotional experience in slew drive design. On the customized slew drives page, you can see some unique customized products designed by our engineers. These design solutions meet the particular needs of many customers. Our engineers can also work with you to design a new slew drive.

5: Can you provide accessories?

A: Yes, we can provide matching spare parts such as motors, hydraulic motors, and encoders compatible with slew drives.

6. Can you provide a 3D model?

A: Yes. All our slew drives have 3D models. You can contact us to get them. At the same time, we can also provide CAD files and PDF files.
7. How long is your slew drives warranty period?
A: Our slew drives warranty time is 12 months. When you install, use and store the slew drives, please refer to the slew drives instruction manual.
8. Can you choose the color of your slew drives housing?

A: Yes. Our slew drives housing is available in many colors. If you have special requirements, please tell our sales engineers, we are happy to provide services for you.

Additional information



Product Quick Detail:

  • Standard and non-standard available
  • With high quality and competitive price
  • Prompt delivery
  • Packing as per customer’s demand.

We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

pruduct quality report

Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages