Precision Slewing Bearings
Engineered in China

ZZ Bearing (Shanghai) Co., Ltd. is a leading manufacturer and supplier of slewing ring bearings, turntable bearings, and custom-engineered solutions for industrial, construction, renewable energy, and automation applications.

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100+ Industrial Applications

From cranes to robotics, wind turbines to medical devices.

Custom Engineering

Tailored slewing rings based on your drawings and specifications.

Global Export

Trusted by clients in over 50 countries worldwide.

About Slewing Bearing Factory

ZZ Bearing (Shanghai) Co., Ltd. is a professional manufacturer and supplier of slewing ring bearings, slewing bearings, and turntable bearings in China. With years of engineering expertise, we deliver high-precision, durable, and reliable rotational solutions for demanding industrial environments.

Our mission is to provide customized slewing ring bearing solutions that meet exact customer requirements. Whether you need a standard model or a fully engineered design based on your drawings, we ensure precision manufacturing, strict quality control, and on-time delivery.

Expertise

Precision slewing ring engineering since 2005

Customization

Made-to-order bearings from technical drawings

Quality

ISO-compliant manufacturing & rigorous testing

Support

Dedicated technical team for global clients

Our Slewing Bearing Products

Explore our comprehensive range of high-performance slewing bearings designed for heavy-duty and precision applications across industries.

Four Point Contact Ball

Single-row design with compact structure, ideal for applications requiring high rotational precision and simultaneous axial, radial, and moment load capacity.

Compact design
High precision mounting
Simultaneous load handling

Single Row Cross Roller

Features cross-arranged rollers for high rigidity and accuracy. Ideal for rotary tables, positioners, and robotics requiring minimal clearance.

Lightweight construction
Small assembly clearance
High installation precision

Double Row Ball

Available in same and different diameter variants. Designed for larger axial loads and high moment capacity in heavy machinery.

High load capacity
Two ball configurations
Robust for industrial use

Double Row Same Ball

Uniform ball diameter for balanced load distribution. Suitable for high-precision mounting and applications with consistent stress.

Balanced load handling
High mounting precision
Uniform stress distribution

Double Row Different Ball

Features varying ball diameters to optimize load capacity based on stress conditions. Ideal for asymmetric loading environments.

Optimized stress handling
Direct ball placement
Customizable raceway design

Three Row Roller

Three independent roller rows allow exact load confirmation. Handles high axial, radial, and moment forces simultaneously.

Maximum load capacity
Separate roller rings
Ideal for TBM & mining

Roller & Ball Combination

Upper row uses rollers, lower row uses balls. Combines high load capacity with precision rotation in a single unit.

Hybrid load handling
High precision mounting
Efficient space use

Light Series

Ultra-compact design ideal for solar tracking systems. Enhances energy production by enabling smooth panel rotation.

Compact and lightweight
Optimized for solar systems
Energy-efficient rotation

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Applications of Slewing Bearings

Our slewing bearings are engineered for reliability in the most demanding environments across industries worldwide.

Excavators & Cranes

Enable smooth 360° rotation under heavy loads with high durability.

Wind Turbines

Critical for yaw and pitch control systems in renewable energy.

Solar Power Systems

Light series bearings for efficient solar tracking.

Medical Devices

Precision rotation in CT scanners and imaging equipment.

Robotics & Automation

Enable multi-axis movement with high repeatability.

Tunnel Boring Machines

Withstand extreme pressure and abrasion underground.

Other Applications Include:

Mining Equipment Packaging Machines Radar & Satellite Ferris Wheels Water Treatment Transporters Stackers & Reclaimers

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Precision Slewing Bearings Engineered in China