Drive industry development
ZZ Slewing Bearing (Shanghai) Co., Ltd products are applied globally in solar tracking systems, wind power systems, satellite communications, and numerous other globally connected industries.
values
Innovating Ahead, Anchored in Integrity, Always Customer-Focused.
At ZZ Slewing Bearing, our values define who we are. Integrity is our compass, guiding us to deliver products that embody precision and excellence. Innovation is our driving force, propelling us to shape the future of industry. Collaboration is our strength, fostering enduring partnerships. We are committed to quality, ensuring that every product reflects our dedication to reliability. With ZZ Slewing Bearing, our values are not just principles; they're the foundation upon which we build success together.
Expertise
Innovative Design Excellence:
Our designs are not just alternatives; they represent a pinnacle of innovation, combining cutting-edge technology with forward-thinking engineering.
Tailored Solutions:
We understand that one size does not fit all. Our equivalents are meticulously crafted to meet or exceed the specifications of each renowned brand, ensuring a seamless fit into diverse applications.
Pre-sales Expertise:
Our team of experts stands ready to guide you through the selection process. From understanding your requirements to recommending the ideal equivalent, we are dedicated to providing personalized pre-sales support.
After-sales Assurance:
Beyond purchase, we prioritize your satisfaction. Our after-sales services include maintenance, troubleshooting, and continuous support to guarantee the longevity and optimal performance of our equivalents.
By choosing ZZ, you're not just selecting a product; you're opting for a partnership dedicated to delivering unmatched quality, innovation, and ongoing support throughout the entire lifecycle of your machinery." Feel free to tailor it further based on specific aspects you want to highlight or adjust the tone to align with your brand voice.
Sustainability
1. Green Practices: Emphasize energy efficiency, waste reduction, and renewable energy use in our operations, aligning with ISO 14001 standards.
2. Circular Design: Employ eco-friendly principles, utilizing reusable and recyclable materials, with an emphasis on product longevity.
3. Transparent Supply Chain: Ensure sourcing and manufacturing adhere to sustainability standards, promoting transparency and responsible practices.
4. Social Impact: Showcase our positive contributions to society, including community support and ongoing employee training initiatives.
5. Lifecycle Focus: Prioritize sustainable product design, offering maintenance and upgrade options for extended product lifecycles.
6. Eco-Certifications: Highlight any received green certifications or labels, demonstrating our commitment to recognized sustainability standards.
7. Employee Involvement: Engage employees in sustainability goals through training, incentives, and internal initiatives.
8. Sustainability Reporting: Share insights into our sustainability practices and performance through accessible reports on our website.
vision
Building Our Company as a Home, Sustaining Long-term Success and Unity.
mission
Craftsmanship level
Quality Control
We strictly implement a comprehensive quality control system, and every step from raw material selection to final product delivery is carefully inspected. With the help of high-precision testing equipment, we ensure the excellent durability, reliability and precision of ZZ rotary drives.
Technical Support
ZZ has a professional technical support team to provide customers with a full range of technical consultation and support. We are well versed in the characteristics of the industry and can provide personalized technical solutions according to customer needs to ensure the efficient implementation of customer projects.
After-sales service
Through continuous improvement of process level, comprehensive quality control, professional technical support and efficient after-sales service, ZZ will continue to provide customers with the highest quality and highly reliable slewing drive solutions to help customers achieve the success of industrial projects.
Global industrial
solutions provider
Frequently Asked Questions
Expert Insights and Reliable Solutions to Your Most Common Questions.
ZZ Slewing Bearing 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 ZZ 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.
ZZ engineers provide professional selection guidance according to your equipment and drawings.
ZZ Slewing Bearing 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 ZZ 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 — ZZ Slewing Bearing 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.

