Urban aerial work platforms typically operate at heights between 20 and 32 meters; consequently, the tilting moment generated when the boom is fully extended can be extremely high. During the selection process, it is essential to ensure that the slewing drive's **rated tilting moment** is at least 1.5 times the calculated maximum value for the complete machine under its most demanding operating conditions. Reference Data: The slewing drive matched to a typical 20-meter-class aerial work platform features a tilting moment of approximately 20.8 kN·m; 32-meter-class models, conversely, require units with a tilting moment exceeding 57 kN·m.
During urban operations, the boom is subject to various influences—such as wind loads and the movement of workers—necessitating a holding torque with ample safety margins. The holding torque for common **slewing drives used in aerial work platforms** typically ranges between 10 and 30 kN·m.
Precision class is typically specified within the range of ≤0.1° to 0.2°. For applications requiring precise installation work on building facades (e.g., mounting light fixtures or applying sealant to curtain walls), a high-precision slewing drive can significantly boost operational efficiency.
Urban construction environments are complex; rain, dust, and road debris can all potentially ingress into the interior of the slewing drive. It is recommended to select products with a protection class of ≥IP65 to ensure reliable sealing and extend the unit's service life.
Urban aerial work platforms predominantly utilize hydraulic drive systems; consequently, the input end of the slewing drive must be compatible with the spline or parallel key interface of the hydraulic motor. Common interface configurations include 6B spline bores and φ25 shafts with parallel keys; compatibility with the existing power system must be verified during the selection process.
Why Choose Luoyang Ari Bearing?
As a specialized manufacturer dedicated to the R&D and production of worm gear slewing drives, Luoyang ARI Bearing has accumulated a wealth of technical expertise in the field of slewing drives for aerial work platforms
Customization Capabilities: ARI offers comprehensive OEM/ODM customization covering all parameters—from output torque and reduction ratio to mounting dimensions—ensuring that every slewing drive is perfectly matched to its host machine.
Technical Strength: Leveraging Luoyang's industrial advantages as China's primary hub for the bearing industry, ARI enforces rigorous quality standards across every stage of production—including material heat treatment, precision machining, assembly, and inspection. Our product portfolio encompasses various technical configurations—including single-worm and dual-worm designs—offering precision grades of ≤0.1° to meet the diverse operational demands ranging from routine maintenance to precision installation tasks.
Reliable Quality: Every **slewing drive for aerial work platforms** leaving our facility undergoes a rigorous 100% load test to ensure that its self-locking performance, load-bearing capacity, and operational smoothness fully meet design specifications.
Luoyang ARI Bearing—a specialized manufacturer of worm gear slewing drives—cordially invites aerial work platform OEMs, modification specialists, and end-users to discuss potential collaborations. Upholding the spirit of "Made in Luoyang" craftsmanship, we provide the core slewing drive components that ensure your equipment remains safe, reliable, and highly efficient.
Contact us to receive a customized product selection solution tailored to your specific needs