Core Definition of Spur Gear Slew Drive and LDB Core Product Series
Spur gear slew drive adopts a transmission structure consisting of internal/external gear rings matched with pinions, replacing the single rotating structure of traditional slewing bearings. It features an integrated design of torque transmission and rotary support, with a compact structure, small installation space and high integration. It can be directly adapted to the rotating mechanisms of various equipment, greatly simplifying overall equipment design and assembly.
To meet the load, precision and speed requirements of different applications, LDB has developed three core standardized spur gear slew drive series. We also provide non-standard customization with diameters ranging from 150mm to 4000mm, covering light, medium and heavy-duty working conditions:
SG-I Series Spur Gear Slew Drive
Features a compact design. By replacing the traditional slewing bearing with an “internal/external gear + pinion” structure, it minimizes installation space. It is ideal for light and medium-load equipment with high integration demands and can be seamlessly integrated with existing modules, making it the preferred choice for automatic assembly stations and light material handling equipment.
SG-M Series Spur Gear Slew Drive
Core advantages: high load capacity and precision motion control, with stable transmission. It enables accurate rotary positioning under medium loads, suitable for equipment requiring both precision and load-bearing performance, such as large robotic arms, stackers and photovoltaic trackers.
SG-H Series Spur Gear Slew Drive
Adopts a spur gear tangential transmission structure with high torque transmission efficiency and precise rotary control. It can withstand heavy loads and large overturning moments, suitable for heavy construction machinery including cranes, excavators, earthmoving machinery and heavy-duty mining equipment, ensuring stable transmission even in harsh working conditions.
In addition to standardized series, LDB spur gear slew drives support full-customized development. Core parameters including gear ring type, mounting dimensions, sealing protection and accuracy grade can be tailored to actual application requirements, meeting personalized rotary transmission needs for equipment in various industries.
The output speed of Spur Gear Slew Drives is not a fixed value but is flexibly adjusted according to actual working load and operating conditions, which is a key feature that ensures the drive’s transmission efficiency and service life.
Spur Gear Slew Drives feature a structurally optimized design with customizable protective configurations, enabling them to adapt to various harsh working environments and maintain stable transmission performance. Their protective performance is mainly reflected in the following aspects
Electric MotorsThis is the most common and mainstream matching power source. AC asynchronous motors, DC servo motors, and stepping motors can all be directly connected to the drive via a coupling or reducer adapter. It is particularly suitable for precision transmission scenarios such as automated production lines and CNC equipment, where it can leverage the high control accuracy of motors to achieve stable speed regulation and positioning.
Normal Operating ConditionsFor standard industrial scenarios (temperature between -30°C and 50°C, medium load, 8-hour daily operation, and clean working environment), lubricant replacement is recommended every 6–12 months or after 2,000–3,000 operating hours, whichever comes first. This interval ensures that the gear meshing surface remains well-lubricated, reducing wear and maintaining transmission efficiency.
Tailored to different operating environments, these drives can be paired with custom lubricants to ensure optimal functionality in extreme conditions. They maintain stable operation in temperatures ranging from -30°C to +50°C, adapting seamlessly to cold climates and high-heat working scenarios alike.
Chat Online
Get A Quote