Setting Industry Standards
For Bearings Manufacturing
Over 20 Years
Stainless Steel Bearing Solution Expert
Your Trusted Professional Bearings OEM & ODM Partner ISO9001 · CE · RoHS
ZGBK® PRODUCTS
Corrosion Resistant
High-precision AISI 440C / 304 / 316 series. Perfect for food processing, medical, and marine environments.
High Load Endurance
Premium GCr15 (52100) chrome steel. Engineered for high-speed rotation and heavy-duty industrial loads.
ZGBK® — Your Global Partner
in Precision Motion
Global Supply Chain, Reliable Delivery
Over 20 years of experience and exports to 50+ countries. With large in-stock inventory and dual hubs in China and the U.S., ZGBK ensures 100% on-time delivery to meet your immediate shipping needs.
Engineering & Custom Solutions
Our 15+ year engineering team designs tailored stainless steel and ceramic bearings with rapid design-to-production turnaround, conquering the most extreme industrial challenges.
Superior Value, Lower Total Cost
ZGBK bearings cut operating costs by up to 20% through longer service life, lower friction, and significantly reduced machinery downtime.
Consistent Quality & Certification
Produced under ISO 9001 & IATF 16949, with 100% inspection and ZV2–ZV3 vibration levels for dependable global sourcing and long-term reliability.
China's Premier Integrated
Bearing Solution Provider
Founded in 2001, Wuxi Heavy Industrial Micro Bearing Factory (ZGBK® Bearings) is a pioneer and leading manufacturer in China's stainless steel bearing industry, and has grown into one of the largest standardized stainless steel bearing producers in the country.
ZGBK Bearings operates under a robust group structure that includes Wuxi Heavy Industrial Micro Bearing Co., Ltd., Wuxi Yuankai Transmission Equipment Manufacturing Co., Ltd., and Anhui Bote Bearing Co., Ltd., forming a fully integrated industrial chain.
The ZGBK group strictly sources premium materials from Changcheng Special Steel and maintains end-to-end in-house production. With over 85% of annual output shipped overseas to Europe, the United States, and Japan, ZGBK has earned widespread trust in the global market.
Explore Our 20-Year HistoryR&D Center
Bases
Experience
Output
(PCS)
Market Share
ZGBK® Industrial Ecosystem
Take a Virtual Factory Tour
Explore ZGBK's state-of-the-art production facility, high-precision grinding workshops, and ISO-certified testing center. Witness our rigorous quality control processes firsthand.
Chrome Steel Bearings
AISI 52100 high-carbon chromium steel solutions designed for maximum load capacity and extended fatigue life.
View CollectionStainless Steel Bearings
Specialized AISI 440C/304/316 bearings for superior corrosion resistance in moisture or chemical environments.
View CollectionL10h Life Calculator
Professional engineering tool to calculate nominal bearing service life based on international ISO 281 standards.
Online CalculationDownload Center
Access our comprehensive technical library including 2D/3D CAD models, PDF drawings, and product catalogs.
Get ResourcesISO 281 Standards
Deep dive into the international principles governing bearing load ratings and life calculation methodologies.
Read MoreL10 Life Definition
A simple guide to understanding the 90% reliability metric and its vital role in industrial machinery maintenance.
Read MoreZGBK® Applications Ecosystem
From food & beverage to heavy machinery — ZGBK bearings power the world's most demanding industries.
7 Key Factors That Affect Bearing Life
7 Key Factors Affecting Bearing Life: A Comprehensive Guide The concept of bearing life is crucial in the field of mecha…
Read More
Understanding ISO 281 Bearing Life Standard
Learn ISO 281 bearing life calculation, key formulas, and applications to optimize rolling bearing performance, reliabil…
Read More
What is L10 Bearing Life? A Simple Guide
Summary: Understanding L10 Bearing Life L10 Bearing Life is the standard reliability metric in mechanical engineering, r…
Read MoreReady to Keep Your World in Motion?
At ZGBK®, we believe that powerful partnerships start with a conversation. Whether you're looking for a standard solution or have a unique engineering challenge, our global team of experts is here to provide you with the reliable bearing solutions you need.
Contact us today for a quotation, technical support, or to discuss how we can drive your project forward — together.
Send a MessageHEADQUARTERS (CHINA)
No. 21, Yanjin Road, Yanqiao Street, Huishan District, Wuxi City, China
NORTH AMERICA OFFICE
4715 25th Ave NE, Seattle, Washington, 98105, United States