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Product Description
Modern heavy equipment—from massive excavators and cranes to industrial robots and wind turbines—requires a rotational component that can withstand immense and complex forces. A slewing bearing, also known as a turntable ring, is the elegant engineering solution that makes this possible. It is a single, integrated unit capable of simultaneously handling axial, radial, and tilting moment loads while providing smooth, precise rotation.
Yile Machinery is a specialized manufacturer of custom large-diameter slewing bearings. We engineer and produce high-performance turntable rings tailored to the specific load, size, and performance requirements of your machine. Whether you need a standard replacement or a fully customized design, we have the expertise and manufacturing capability to deliver.
Custom Engineered for Your Application: We work directly from your technical drawings or specifications to produce a slewing bearing that fits your design perfectly. We offer a full range of customization, including non-standard diameters, mounting hole patterns, and sealing options.
Integrated Internal or External Gearing: Simplify your drive mechanism, save space, and reduce assembly complexity. We can machine high-precision gear teeth directly into the inner or outer ring of the bearing, creating a robust, all-in-one rotational and drive solution. Non-geared options are also available.
High-Strength Materials & Advanced Heat Treatment: We use high-quality forged steel such as 50Mn and 42CrMo. The bearing raceways undergo a critical quenching and tempering heat treatment process, creating an extremely hard surface for maximum wear resistance and a tough, ductile core to prevent fractures under shock loads.
A Full Range of Bearing Structures: We manufacture all major types of slewing rings to suit different load profiles:
Four-Point Contact Ball Bearings: The most common and versatile type for balanced loads.
Crossed Roller Bearings: Ideal for applications requiring high rotational accuracy and rigidity.
Double-Row Ball Bearings: Suitable for higher axial loads.
Three-Row Roller Bearings: The ultimate solution for the highest combined load capacities.
Precision Manufacturing & Quality Control: From CNC gear cutting to final assembly, every step is monitored to ensure tight tolerances and smooth performance. We conduct rigorous inspections to guarantee every bearing meets our high standards for quality and reliability.
Our slewing bearings are designed to replace complex, multi-part rotational assemblies (like kingpins and separate thrust/radial bearings) with a single, easy-to-install unit.
Design & Engineering: We review your requirements to ensure the optimal bearing type, material, and gear profile are selected.
Forging & Machining: A high-quality steel ring is forged and then rough-machined.
Gear Cutting & Heat Treatment: The gear teeth are precision-cut, and the raceways are induction hardened.
Finish Grinding & Assembly: The raceways are ground to their final profile, and the bearing is assembled with rolling elements (balls or rollers), cages, and seals.
Final Inspection: The finished bearing is tested for rotational torque, clearance, and dimensional accuracy before shipment.
Our heavy-duty slewing bearings are the trusted choice for OEMs and MROs in a wide range of industries:
Construction Machinery (Excavators, Mobile Cranes)
Port & Shipyard Equipment (Deck Cranes, Gantry Cranes)
Wind Energy (Wind Turbine Pitch and Yaw Bearings)
Industrial Robotics & Automation
Mining & Tunneling Equipment
Radar & Satellite Antennas
Forestry and Material Handling Equipment
