Crossed Roller Slewing Bearings
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Slewing Bearings
Slewing Bearings
Heavy-Duty Slewing Bearings for Industrial Machinery
Our slewing bearings are engineered for heavy-load, low-speed applications requiring reliable rotational support under combined radial, axial, and moment loads. Built with robust construction and precise gear profiles, they maintain stable performance in demanding operating environments. These bearings are widely used in cranes, excavators, wind turbines, radar systems, and port machinery.
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Product Category
Configure Your Slewing Bearing
Every BOM slewing bearing is engineered for heavy-duty rotary applications. Select from the options below to match your load capacity, rotation requirements and installation conditions.
01
Bearing Type
Ball, roller or crossed roller designs for different load capacities and precision requirements.
02
Gear Configuration
Internal, external or non-geared options for flexible drive integration and system design.
03
Raceway Design
Optimized raceway structures provide high load capacity and smooth rotational performance.
04
Sealing System
Protective sealing solutions prevent dust, moisture and contaminants from entering the bearing.
05
Mounting Holes
Standard or customized mounting patterns for direct integration into equipment structures.
06
Preload & Clearance
Adjusted internal clearance and preload settings for accuracy, rigidity and service life.
Tolerance & Performance Classes
Manufactured according to international slewing bearing standards to ensure reliable rotation, load carrying capability and long service life in heavy-duty applications.
| Standard | Performance Class | Control Parameters | Typical Use |
|---|---|---|---|
| ISO 281 | Standard | Bearing life calculation and load rating | General industrial machinery |
| ISO 76 | Static Load Grade | Static capacity and safety factor evaluation | Cranes, lifting equipment and construction machinery |
| DIN 620 | Precision Grade | Dimensional accuracy and running performance | Industrial rotary systems |
| Customized Standard | High Precision | Gear accuracy, clearance and rotational resistance | Robotics, positioning systems and automation equipment |
| Special Design | Heavy Duty Grade | Extreme load capacity and environmental adaptability | Wind turbines, offshore and heavy machinery |
ISO 9001 IATF 16949 RoHS Compliant
Where They Perform Best
Wind Turbines
Large diameter bearings supporting heavy loads and continuous rotation.
Construction Equipment
Robust slewing solutions for cranes, excavators and lifting machinery.
Robotics
Compact rotary bearings for precise movement and high moment loads.
Solar Tracking Systems
Reliable rotation support for accurate solar panel positioning.
Frequently Asked Questions
What loads can a slewing bearing carry?+
Slewing bearings are designed to support combined radial, axial and moment loads while allowing smooth rotation under heavy operating conditions.
What types of slewing bearings are available?+
Available designs include single-row ball slewing bearings, double-row ball bearings, roller slewing bearings and crossed roller types.
Can you supply customized slewing bearings?+
Yes. Gear specifications, mounting holes, dimensions, sealing systems and lubrication requirements can be customized for specific equipment.
What is your minimum order quantity?+
MOQ depends on bearing size, design requirements and production volume. Contact our team for a customized quotation.
Custom Bearings
Your One-Stop
Customization Solutions
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Initial Inquiry01Share needs, expert contact <24h.
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Technical Review02Tailored solutions: peak performance, fair cost.
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Solution & Proposal03Tailored solutions: peak performance, fair cost.
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Factory Tour & Audit04Witness Quality Control firsthand.
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Manufacturing05Process & inspection: consistent quality.
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Partnership & Support06Beyond delivery: lifetime tech support.