use:

The wheel bearing oil seal is mounted to the hub bearing and is used in passenger cars, trucks and off-road vehicles to prevent grease from leaking out and to prevent contamination, mud and other contaminants from entering the bearing.

Qingdao Changyu Group consists of Qingdao Changyu Sealing Co., Ltd., Shandong Laiyang Changyu Sealing Products Co., Ltd., Shanghai Changyu New Energy Co., Ltd., and Shandong Changyu Qingdao University of Science and Technology Technology R&D Center. The company mainly produces various types of skeleton oil seals and rubber sealing products. It is currently supplied by GM, Ford, Volkswagen, Mazda, Schaeffler, Mahler, Getrag and China FAW, Geely, Haima, BYD, Chery and other well-known companies.

The company has passed ISO9001, ISO/TS16949 international quality system certification, ISO14001 environmental system certification; the company has the world's advanced level of production equipment and testing equipment, research and development of a number of scientific and technological achievements, and obtained national patents. It is awarded the title of National High-tech Enterprise, China Patent Shandong Star Enterprise and Shandong Yantai Enterprise Technology Center. It is one of the major rubber sealing product research and production bases in China.