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Slewing Drive For Excavator Tilt Rotator

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Enclosed housing slewing drive is mainly applied to the relatively high condition for high requirements for dustproof, rain-proof and anti-corrosion occasion. Presion grade IP65.
  • SE/WEA Series
  • Wanda
  • 8483409000

   Performance parameters For Dual-Worm Slewing Drive



Rated Output Torque (MAX)KN.M


Tilting Moment Torque (MAX)KN.M


Static Axial Load KN


Static Radial Load KN


Dynamic Axial Load (MAX)KN.M


Dynamic Radial Load KN


Holding Torque (MAX)KN.M


Gear Radio


Tracking Precision


Self-locking Gears


Weight kg



1. Definition of slew drive


Slew drive device is a new type of rotary products, which is made of worm gear, slewing ring, shell and motor. Since the core part adopts slewing bearing, so it can bear axial force, radial force and overturning moment at the same time. Slew drive and traditional rotary products compared, it has the characteristics of simple installation, easy maintenance and saving installation space to a greater extent. This product can be widely used in heavy plate transport vehicle, container crane, truck mounted crane and high-altitude operation.

slew drive compose

2. Slew drive structure


Slew drive can be divided into single worm drive, double worm drive and special type rotary drive. Xuzhou Wanda slewing bearing co.,ltd could supply the slew drive in SE Seires and WEA Series.


SE series adopts toroidal worm structure design, multi-tooth contact, strong impact resistance, suitable for light load and low speed applications. Such as solar tracker system,Small environmental protection equipment etc..

WEA series adopts curved tooth surface structure design, which has much stronger anti-fatigue and gluing ability. It is suitable for heavy-duty and medium-speed applications. Such as Construction machinery, construction machinery etc..



3. Three advantages of slew drive



Due to the high integration of the slew drive, users do not have to purchase and process each part of the rotary device one by one. To a certain extent, it also reduces the preparation process at the beginning of production, thus greatly improving the labor productivity.


Worm gear transmission has the characteristics of reverse self-locking, which can realize reverse self-locking, that is, only worm can drive worm gear, but not worm gear. The safety factor of main engine and slewing equipment can be greatly improved in high-altitude operation. Compared with traditional rotary products, slew drive has the advantages of simple installation, easy maintenance and saving installation space.


c.)Simplify host design

Compared with the traditional gear transmission, worm gear transmission can get a relatively large reduction ratio. In some cases, it can save the reducer parts for the main engine, so as to reduce the purchase cost for customers and greatly reduce the failure rate of the main engine.


The above is the introduction of the slewing drive. If you have any other questions, you can communicate with us again, welcome to contact us!

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Xuzhou WanDa Slewing Bearing Co.,Ltd.
 No.15,Huaxia Road,the 3rd Industrial Park,Tongshan District, Xuzhou, Jiangsu,China.
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