We are a manufacturer fully dedicated to the design, development, and production of high-quality slewing bearings. With years of industry experience, we focus on delivering high-precision, high-load-capacity products to meet diverse application requirements worldwide.

From raw material sourcing to final packaging, we adhere to rigorous quality control standards. Utilizing advanced production machinery and precision inspection technology, we ensure every slewing ring offers exceptional durability and performance, delivering maximum value to our customers.

Our extensive product portfolio includes single-row ball, cross-roller, and three-row roller slewing bearings. Widely used in construction machinery, wind energy, medical equipment, and more, we provide complete rotation solutions for various industries.

We understand that different applications require unique solutions. Our strong engineering team specializes in custom-designed bearings to meet specific dimensional and load requirements. We respond quickly to tailor the perfect slewing ring for your specific operating conditions.

Our products are trusted by clients across Europe, the Americas, and Southeast Asia. Built on a foundation of integrity and a commitment to quality, we strive to be your long-term, stable strategic partner for global success.

We are focused not only on the present but also on the future of the industry. Through continuous investment in R&D and process optimization, we aim to lead technological innovation in the slewing bearing sector, working together with our clients to create a prosperous future.

Established in 1998, ZZ Bearing (Shanghai) Co., Ltd. is a professional manufacturer specializing in slew bearings. With decades of dedicated expertise, we focus on delivering high-precision, durable, and reliable bearing solutions tailored to diverse industrial applications. Our technical capabilities, stringent quality control, and commitment to engineering excellence position us as a trusted partner in the field of rotary bearing technology.

Our manufacturing facility spans more than 60,000 square meters, equipped with advanced production lines and precision machining centers dedicated to slew bearing manufacturing. The plant integrates heat treatment, grinding, assembly, and rigorous testing under one roof, enabling full-process quality control and efficient lead times. With a strong focus on engineering excellence and continuous process improvement, our factory upholds the highest standards of precision, reliability, and operational safety—ensuring every bearing meets both domestic and international technical specifications.

Our technical engineering team comprises highly experienced specialists dedicated to the design, analysis, and optimization of slew bearings. Leveraging advanced CAD/CAM software, finite element analysis (FEA), and decades of hands-on expertise, our engineers collaborate closely with clients to develop customized solutions that meet precise load, dimensional, and application requirements. From prototype development to production support, the team ensures rigorous adherence to international standards, driving innovation, reliability, and continuous improvement across every stage of the manufacturing process.

Our global footprint extends to clients across more than 100 countries, spanning Europe, North America, Southeast Asia, the Middle East, and beyond. With extensive experience in international trade, we tailor our slew bearing solutions to meet diverse regional standards and application requirements. Through dedicated export expertise, reliable logistics partnerships, and a commitment to consistent quality, we have built enduring relationships with customers worldwide—delivering precision-engineered products that perform reliably in demanding environments across the globe.

Our product portfolio encompasses a comprehensive range of slew bearings, including single-row ball, double-row ball, three-row roller, and crossed roller types, designed to meet diverse application requirements. Available in diameters from compact sizes to over several meters, these bearings serve critical roles in construction machinery, wind turbines, marine equipment, aerial platforms, and industrial automation. Each product type is engineered for optimal load capacity, rotational precision, and durability, with customization options available to accommodate specific mounting, sealing, and lubrication needs. All products are manufactured in strict compliance with international quality standards, reflecting our commitment to engineering excellence and application-specific reliability.

Our annual forging capacity stands at a robust level, supported by advanced forging equipment and precision heat treatment facilities. This capability ensures a consistent supply of high-quality bearing rings—from raw material selection to forged blanks—with optimized grain structure and mechanical properties. By integrating in-house forging operations, we maintain strict control over material integrity, dimensional accuracy, and production lead times, laying a solid foundation for the reliability and longevity of every slew bearing we manufacture.