ZZ Slewing Bearing

Dual axis slewing drive

A dual-axis slewing drive is a specialized mechanical system designed to provide rotational movement around two perpendicular axes. This allows for greater flexibility and versatility in applications where precise positioning is required. Here’s an overview of its key features and applications:

ModelOutput TorqueTilting Moment TorqueHolding TorqueGear RatioTracking PrecisionWeightDrawing
WEA25-258 KN.m310 KN.m247 KN.m108:1≤0.12°273kg
WEA25-242800 lbf.ft229×10³ lbf.ft182.3×10³ lbf.ft108:1≤0.12°273kg

Key Features:

  • Two-Axis Movement: Unlike standard slewing drives that typically operate on a single axis, dual-axis drives enable rotation around both horizontal and vertical axes. This allows for complex motion and positioning.
  • Compact Design: Dual-axis slewing drives are often designed to be compact and lightweight, making them suitable for applications where space is limited.
  • High Load Capacity: They can handle significant axial and radial loads, making them ideal for heavy-duty applications in various industries.
  • Integrated Gear Mechanism: The drive usually incorporates a gear mechanism that provides smooth and precise control over rotational movement, enhancing accuracy in positioning.
  • Durability: Built to withstand harsh environments, dual-axis slewing drives often feature protective coatings or seals to resist dust, moisture, and corrosion.

Applications:

  • Robotics: Used in robotic arms and automated systems where precise multi-axis movement is required for tasks like assembly or welding.
  • Solar Tracking Systems: Employed in solar panels to allow for tracking the sun’s movement throughout the day, maximizing energy absorption.
  • Cranes and Heavy Machinery: Utilized in cranes for precise lifting and positioning of loads in various directions.
  • Aerospace and Defense: Applied in radar systems and satellite antennas that require precise positioning to track targets or signals.
  • Industrial Automation: Found in conveyor systems and assembly lines where multi-directional movement enhances efficiency.

Conclusion:

Dual-axis slewing drives are essential components in modern machinery and automation, providing the flexibility and precision needed for complex operations. Their ability to manage loads effectively while allowing for multi-directional movement makes them valuable in various industrial and technological applications.

Frequently Asked Questions

Expert Insights and Reliable Solutions to Your Most Common Questions.

ZZ Slewing Bearing supplies a full range of slewing bearings to meet different industrial needs:

  • Single row four point contact slewing bearings Application: medium loads, precise rotation.
  • Double row ball bearings  Application: higher radial and axial loads.
  • Cross roller bearings –Application: high rigidity, suitable for robots and machining centers.
  • Three row roller bearings – Application: extreme loads in heavy equipment.
  • Ball combine roller bearings –Application:  precise rotational adjustment applications.
  • Customized bearings – tailored for specific equipment requirements.

Typical selection parameter for ZZ clients:

Load type: axial, radial, and tilting moment.

Rotation RPM: ensures long service life.

Installation space & mounting dimensions: inner/outer ring diameter, bolt circle.

Precision & rigidity requirements: critical for cranes, excavators, and robots.

ZZ engineers provide professional selection guidance according to your equipment and drawings.

ZZ Slewing Bearing selects materials for strength, wear resistance, and long-term durability:

Slewing ring: 42CrMo, 50Mn, C45N, 40CrNiMo, C48E.

Special forging spare parts: carburized/hardened steels for gear teeth (20CrMnTi, 18CrNiMo7‑6).

Corrosion resistant: SS 304, 316L, duplex stainless steel.

Surface treatments: heat treatment, quenching, carburizing, induction hardening, and surface coating(Four-Layer Packing, Strong Anti-Rust Oil, Black Oxide Treatment, Jet Black Paint Finish, Hot-Dip Galvanizing (CGL), Electro-Galvanizing (EGL), Hot-Dip Galvanizing + Paint Finish)

Correct installation with flat surfaces.

Proper lubrication using grease.

Avoid overloading or shock loads over capacity.

Monitor operating conditions regularly to prevent debris entry.

Typical factors observed by ZZ engineers:

  • Insufficient or incorrect lubrication.
  • (dust, metal particles) in raceways.
  • Rolling element or track damage.
  • Uneven mounting surfaces or misalignment.
  • Incorrect bolt torque(below grade 8.8) or preloading.

In-stock: 3–7 days.

Custom: 2–6 weeks depending on size, load, and precision.

Warranty: 1 year

Lifetime Free Spare Parts: Glue, seals, steel ball

Yes — ZZ Slewing Bearing offers:

Detailed installation manuals.

Online engineering support.

Guidance for lubrication, maintenance, and troubleshooting solution.

Full range of materials and heat treatments for various load conditions.

High precision and strict quality inspection standards.

Engineering support before and after delivery.

Customization to exact equipment requirements.

Proven performance in cranes, excavators, robotics, wind turbines, and heavy machinery etc.

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