Clark Seals Ningbo® , an American company has designed and manufactured shaft and bearing seals since 1956 to protect all types of equipment. Clark developed the original Sheave® And Excluder® Seals, develop and patented the negative "R" sealing lip and was a pioneer in the development of vacuum molding technology, a milestone in improving seal quality and reducing premature seal failure.

Clark's global manufacturing facilities in the USA and China provides our customers with a factory direct purchase that helps reduces the cost of quality. Our SAE Optimum Seal Design Standards and latest manufacturing technology coupled with the highest quality level assures them of a competitive price, consistent quality and on time delivery.

Words can be cleverly selected and arranged to convince you of a factory's quality. We have visited hundreds of seal factories all over the world and to improve your comfort level we invite you to come and visit the newest American factory in Ningbo, Zhejiang Province, China^ CSN and meet the people who know advanced seal design and quality manufacturing.

Clark Seals Ningbo® Is certified ISO/TS16949 and we implemented from the beginning PFMEA (Potential Failure Mode and Effects Analysis) techniques into our design and manufacturing processes.