From cranes bearing to wind turbines bearing operating continuously under extreme conditions, the reliability of a slewing bearing often determines the safety, efficiency, and service life of the entire machine.
As China’s leading slewing bearing manufacturer, LTZC Bearing has spent decades building not only bearings, but long-term trust with global customers who demand uncompromising performance.
LTZC Bearings is a professional slewing bearing manufacturer located in Luoyang, China, a historical hub of the bearing industry, with over 20 years of experience in bearing research and development.
Since its establishment in 1992, LTZC has focused on:
Slewing bearings
Slewing rings with internal or external gears
Heavy-duty and large-diameter bearing solutions
Customized non-standard bearing designs
Today, LTZC has become a trusted bearing supplier for global original equipment manufacturers (OEMs) and project contractors, with our products exported to countries such as Germany, Italy, Canada, and South Korea.
1. Over 20 Years of Bearing Manufacturing Experience
LTZC is not an ordinary bearing factory. Our expertise lies in slewing bearings – and we specialize in slewing bearings, heavy-duty bearings, and large-diameter slewing bearings.
2. Fully Integrated Manufacturing Process
LTZC owns independent production facilities, and the entire bearing manufacturing process is subject to rigorous testing and control, providing customers with high-quality slewing bearings.
If you are interested in LTZC bearings, contact LTZC to visit our production facilities.
3. International Standard Certification
LTZC bearings are certified by authoritative organizations such as ISO, ABS, BV, and CCS, providing precision slewing bearings to global customers.
The quality of a slewing bearing depends on its manufacturing process. Even small deviations in heat treatment depth, raceway hardness, or gear precision can significantly reduce service life under heavy loads.
LTZC continuously invests in:
Large CNC vertical lathes for large-diameter slewing bearings
Advanced gear forming and hobbing machines
Controlled atmosphere heat treatment furnaces
Precision measurement and non-destructive testing equipment
These capabilities enable LTZC to provide heavy-duty bearing solutions that operate reliably under extreme operating conditions.
Slewing bearings and slewing rings
Single-row four-point contact ball bearings
Double-row ball slewing bearings
Crossed roller slewing bearings
Three-row roller slewing bearings
Optional configurations:
Internal gearing
External gearing
Gearless design
Precision Bearings
LTZC's precision bearing solutions are designed for applications requiring:
High rotational accuracy
Stable torque
Low vibration
Non-standard sizes, special sealing systems, corrosion-resistant materials, and load optimization for specific applications are all part of LTZC's solution-oriented approach.

Engineering-driven, not sales-driven
LTZC firmly believes that correct engineering decisions take precedence over commercial considerations. We work closely with our customers to ensure the correct bearing specifications – even if this means recommending a configuration different from the initial requirements.
Proven performance in heavy-duty applications
LTZC bearings are used globally in:
Tower cranes and offshore lifting equipment
Mining and bulk material handling machinery
LTZC's quality is built into the entire production process, not just inspected at the final stage.
Our quality system includes:
Incoming material inspection and certification
Process control at every machining stage
Raceway hardness and depth verification
Gear accuracy testing
Final functional and dimensional inspection
Every slewing bearing leaving LTZC is accompanied by complete quality documentation, ensuring transparency and traceability.
LTZC serves customers in Asia, Europe, the Middle East, and the Americas through:
Technical consultation and bearing selection support
Custom drawings and 3D models
Application-specific sealing and lubrication solutions
Responsive communication and engineering feedback
Our goal is not just to supply bearings, but to be a long-term technical partner.
Because slewing bearings are critical components, customers need a supplier who understands long-term operation, maintenance cycles, and lifecycle costs, not just focusing on the initial price. LTZC helps customers:
Extend bearing service life
Reduce unplanned downtime
Optimize maintenance intervals
Improve overall equipment reliability
For LTZC, leadership is reflected in:
Focus on the slewing bearing field
Strong manufacturing and engineering capabilities
Proven performance in demanding applications
Long-term trust built with global customers
Contact LTZC for bearing solutions
When performance, safety, and reliability are critical, choosing the right bearing supplier is essential.
As a slewing bearing manufacturer based in China, LTZC bearings stand out with their global perspective, strong manufacturing capabilities, and solution-oriented approach.
From precision bearing design to heavy-duty bearing production, LTZC provides slewing bearing solutions that customers can rely on—now and for decades to come.

Feel free to get a quote on the latest price of slewing bearings for any large applications, please include your application, needs, requirements and other details.