Что такое поворотный круг на кране?

В мире тяжелой техники поворотный венец, также известный как поворотный подшипник или подшипник поворотного стола, играет важную роль в обеспечении вращения и устойчивости кранов. Будь то автокраны, башенные краны или гусеничные краны, этот компонент отвечает за выдерживание огромных осевых, радиальных и моментных нагрузок, обеспечивая при этом плавное и точное вращение.

A slewing ring on a crane connects the upper structure (the boom and operator’s cab) to the lower chassis. It enables the crane to rotate 360 degrees while lifting heavy loads. This rotation function allows operators to position loads accurately and safely. Without the slewing bearing, a crane would lose its flexibility and operational efficiency.

FDON Slewing Bearing designs and manufactures slewing rings for cranes with superior precision and durability. Our products are engineered using advanced materials and strict quality control to ensure long service life, even under extreme working conditions. Each FDON slewing bearing undergoes thorough heat treatment, gear hardening, and sealing processes to maintain performance in dusty, humid, or high-temperature environments.

How Does a Slewing Ring Work on a Crane?

The slewing ring consists of an inner ring, an outer ring, rolling elements (balls or rollers), and a gear mechanism. The gear teeth—either internal gear or external gear—allow the drive motor to rotate the crane’s upper structure smoothly. The rolling elements reduce friction, ensuring easy rotation even under heavy loads.

FDON’s slewing bearings for cranes are designed with optimized raceway geometry, which improves load distribution and minimizes wear. This guarantees consistent rotation performance and reduces maintenance costs.

Key Benefits of FDON Crane Slewing Rings

• High load capacity: Handles heavy radial and axial forces with stability.
• Smooth rotation: Ensures precise positioning for safer lifting operations.
• Long lifespan: Advanced sealing and lubrication systems prevent contamination and wear.
• Custom solutions: FDON provides tailor-made designs based on crane type and operating conditions.

Applications of Slewing Bearings in Cranes

FDON slewing rings are widely used in:

• Mobile cranes and truck-mounted cranes
• Tower cranes in construction
• Port cranes and ship deck cranes
• Excavators and other lifting machinery
• In all these applications, the slewing bearing is a core component ensuring the stability and flexibility of rotation.

Why Choose FDON Slewing Bearing

As a trusted manufacturer, FDON Slewing Bearing focuses on precision, safety, and reliability. Our engineering team continuously develops innovative bearing designs that improve crane performance and reduce downtime. We offer customized solutions for various crane models and provide full technical support from design to installation.