Delve deeply into tribology, intelligently manufacture long-service-life bearings.
Zhejiang CSB Plastic Bearing Technology Co., Ltd. specializes in the R&D and production of the entire industrial chain covering high-performance engineering plastics, fiber-reinforced composite materials, and composite self-lubricating bearings. We focus on material modification and tribological wear mechanism research, continuously optimizing a series of high-load, low-wear and maintenance-free products suitable for harsh working conditions and diverse application scenarios including automotive, marine, heavy industry and general machinery.
The new plant invested and constructed by CSB PLASTIC adopts intelligent logistics systems, automated warehousing systems and clean energy solutions in its overall planning, building a new factory that integrates intelligent production with green energy.


DURAFILM® polymer coatings include thermoplastic and thermosetting composite coatings, delivering superior lubrication performance for components operating in extreme environments.
While forming an excellent wear-resistant layer on friction surfaces, they also provide rust and corrosion protection for metal parts.
We have developed a series of high-performance coatings tailored for low friction coefficient, high load, high temperature and conductive working conditions.
The laboratory of Zhejiang Changsheng Sliding Bearing Co., Ltd. has passed CNAS accreditation

With the global spread of the epidemic, our on-site employees stuck to their posts and worked together with home-office staff to provide customers with order products and technical service guarantee.
CSB's remote home-office system transmits customer orders to the production frontline in real time through the ERP system, realizing uninterrupted full-process service from customer order placement, production to delivery.




CSB-EPB3 plastic plain bearings and CSB-BAL plastic spherical plain bearings are supplied in batches for the PEPPER and NAO intelligent humanoid robots of France ALD Company


Manufactured with high-strength fiber via filament winding technology, DURARUB® fiber wound bearings are fully maintenance-free and high-strength self-lubricating bearings. They feature a low friction coefficient and outstanding wear resistance, especially under high-load, low-speed oscillating operating conditions
RPM automobile steering gear support sleeve achieved formal mass production
CSB company has successfully passed the IATF 16949 quality management system certification for the automotive industry. It strictly standardizes the production specifications of auto parts and has officially acquired the qualification for supporting supply to automotive manufacturers
Large-scale mass production of DURAPLAS® high-performance plastic bearings has been realized at the newly invested and constructed Changsheng Road Plant. This move improves the industrial layout of non-metallic bearings, marking a new leap in product performance and production capacity

Increase investment in R&D, focus on technical breakthroughs and sample trial production of non-metallic self-lubricating bearings, taking a crucial step in the independent R&D of special wear-resistant parts
CSB Bearing was jointly founded in October 1995 by company founders Mr. Sun Zhihua and Mr. Wang Changsheng. It specializes in the R&D, production and sales of high-performance self-lubricating materials and composite bearings.
