This is an assembly with a swivel bearing equipped with a worm gear and a worm shaft sealed within the housing.
The slewing drive is an assembly that seals a slewing bearing with a worm gear and worm shaft within a housing. It not only transmits rotational torque but also allows the slewing bearing to rotate under large loads such as axial loads, radial loads, and moments with low torque. Due to its integrated structure, it significantly reduces the number of parts, saves space, and simplifies design and assembly, thereby greatly lowering the cost of the slewing mechanism. The slewing drive is used as an essential module in tracking solar power generation systems and is also widely used in construction machinery and wind power generation equipment. Additionally, its high airtightness makes it suitable for equipment that requires waterproofing, dustproofing, and corrosion resistance, as well as for devices in clean rooms.
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basic information
- The slewing bearing raceway and gears are subjected to quenching treatment, making them capable of handling heavy loads and high torque. - The enveloping (drum-shaped) worm improves torque capacity, transmission efficiency, and precision, achieving smooth rotation. - The components are treated for rust prevention and have the performance to withstand 1,500 hours of salt spray testing. - Dust and waterproof performance meets international standard IP66. * - Achieves a long lifespan of up to 30 years. * - Equipped with a self-locking function via the worm. * - There are models that achieve high-precision rotation of ±0.03°. * - Offers excellent environmental resistance, operating within a temperature range of -40 to 80°C. * - Maintenance can be minimized, with models that utilize grease-free dry bearings available. * - A variety of specifications and a rich product lineup are available. - Can handle higher loads and moments compared to competing products in the same category. - As a solution-integrated manufacturer, we provide products that integrate not only the slewing drive itself but also ancillary components such as motor selection, encoders, and processing of mounting plates. * Specifications vary by model.
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Applications/Examples of results
【Renewable Energy Related】 Solar tracking devices, solar thermal power generation systems, wind power generation yaw control, offshore wind power generation, davit cranes 【Special Vehicles】 Aerial work platforms, special vehicles for railways, firefighting and rescue vehicles, transport vehicle steering, amusement rides, ship deck equipment 【Construction Machinery】 Cranes, attachments, boring machines, excavators, forestry and agricultural machinery 【Factory Equipment】 Transport devices, automation equipment, positioners, mixers, winding machines, crushers, packaging machines 【Precision Machinery】 Satellite observation, defense equipment
Detailed information
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Tracking solar power generation system
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Construction machinery swing section
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Positioner, automation device
Line up（9）
| Model number | overview |
|---|---|
| KE | This is the standard model of the housing-equipped series. While the SE series used a seal strip method, the KE series has improved to a circular lip seal, enhancing sealing performance and maintenance characteristics. |
| KE-2 | This model combines two worm shafts in the KE series. The double worm allows for greater torque transmission. Additionally, it features a lip seal that enhances sealing performance and maintenance characteristics. |
| VE | By combining swivel bearings vertically, this model is suitable for installation with pitch (horizontal axis) rotation. It also features a lip seal that enhances sealing performance and maintenance characteristics. |
| HE | This model is shaped for installation with pitch (horizontal axis) rotation and achieves high cost performance by directly incorporating the raceway into the housing. |
| KDE | This is a two-axis type that combines the KE type. By integrating, it achieves space-saving design. Additionally, it features a lip seal that enhances sealing performance and maintenance characteristics. |
| WE | This model adopts a cylindrical worm instead of an enveloping (drum-shaped) worm, allowing for rotation speeds of up to 5 revolutions per minute and accommodating high loads. *The presence of a self-locking function varies by model. |
| KPE | This model combines spur gears instead of worms, allowing for high-speed rotation of up to 30 revolutions per minute (or 15 revolutions per minute). The KPE series enhances sealing performance with a lip seal. |
| S | This is an open-type model that omits the housing on the worm wheel side. It is a lightweight, slim, and high cost-performance model for swivel drives. |
| SR | This is a standalone model of swivel bearings. It features spur gears, making it a high cost-performance model suitable for high-speed rotation. |
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Company information
Our company is building a sales system that can respond to requests for high precision, special shapes, large dimensions, and small orders by collaborating with related companies to expand the applications of slewing bearings. We are also working on expanding standard parts for maintenance for various manufacturers of power shovels. We will promptly respond to your inquiries regarding the selection of the optimal products for your intended use, estimates, and submission of drawings, so please feel free to contact us.