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The thin section slewing bearing is a type of bearing designed to handle both axial and radial loads as well as tilting moments in a compact form factor. These bearings are characterized by their thin cross-sectional dimensions compared to their diameter, making them ideal for applications where space and weight are critical constraints.

Thin Section Slewing Ring Bearing

Key Features:

  • Thin Cross-Section: The reduced thickness allows for lighter and more compact designs without compromising the bearing’s load-carrying capacity.
  • Versatility: Capable of accommodating axial, radial, and moment loads, making them suitable for a variety of applications.
  • High Precision: Often used in applications requiring precise motion control.
  • Durability: Designed to provide reliable performance even under challenging conditions.

Applications:

  • Robotics: Where space is limited and precise movements are required.
  • Medical Equipment: Such as imaging devices where compact and reliable bearings are essential.
  • Aerospace: Where weight savings and compactness are critical.
  • Renewable Energy: Such as wind turbines for their ability to handle large loads in compact spaces.
  • Industrial Machinery: Where efficient load handling and space-saving designs are needed.

These bearings are available in various configurations, such as internal gear, external gear, or without gear, to suit different application requirements.

Frequently Asked Questions

Expert Insights and Reliable Solutions to Your Most Common Questions.

FDON GROUP 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 FDON 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.

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

FDON GROUP 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 FDON 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 — FDON GROUP 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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