ZYS cylindrical roller bearings belong to line contact, with high capacity and rigidity than angular contact ball bearings (including multiple sets of bearings), but the allowable speed is lower. Therefore, cylindrical roller bearings are used in the medium, large scale machine tool with large load, high rigidity and low speed.

ZYS cylindrical roller bearings including two structure series: single row cylindrical roller bearings N10 and double row cylindrical roller bearings NN30. The bearing bore also has two kinds: cylindrical bore and tapered bore. 

Single row cylindrical roller bearings, as free supporting, are usually matched with angular contact ball bearings which are as fixed supporting. Those usually used on precision machine tool is double row cylindrical roller bearing NN30K series whose tapered bore degree is 1:12. This kind of bearing can bear greater radial load, and can not bear the axial load because of the detachable inner and outer ring, so they are often used with two-direction angular contact thrust ball bearings which bear axial load.

As for the N10 and NN30 series of cylindrical roller bearings, the inner ring has shoulder; the outer ring can be separated. For double row cylindrical roller bearings used with oil lubrication, a circumferential oil groove and three symmetric lubricant holes are set in the middle of outer ring marked W33.

Company Information
ZYS Luoyang Bearing Science And Technology Co., Ltd.
ZYS Tenet: To lead the science and technology development of bearing industry and to improve the
World'sequipment level.
ZYS Spirit: To keep continuous improvement, to pursue brilliance.
ZYS Core values: Integrity, rigor, innovation, mutual benefit.

ZYS was formerly known as Luoyang bearing research institute, which was founded in 1958 and was the only first-class comprehensive research institute in China bearing industry. As it became one member of China National Machinery Industry Corporation in 1999, the former institute was transformed into the science and technology enterprise. Then Luoyang Bearing Science & Technology Co., Ltd. Was established in 2001. It was listed at Shenzhen Stock Exchange with stock code 002046 in 2005.



ZYS Advantage
ZYS has a strong strength of manufacturing high-precision and high-reliability bearings and relevant parts. ZYS company not only possesses advanced bearing manufacturing equipments and international first-class measuring instruments, but also has strong strength of manufacturing, inspecting and testing the high-precision and high-reliability bearings and relevant spare parts. In the meantime, it always keeps a leading position in bearing basic theory, lubrication technology, design, material, test, information criterion and other aspects.


Glory
Top 200 most promising companies of China in Forbes
Top 500 in China Machinery Industry
Excellent Enterprise with China Well-know Trademark
High-performance Bearings Laboratory
State Quality Supervision and Testing Center for Bearing
ISO/TC4 China Secretariat
The Research Center for High-speed Precision Bearing Engineering in Machinery Industry

ZYS Packing :


Bearing workshop :




We would like to and ready to do business with any company from all over the world. If any of ZYS products interests you or if you have interests in ZYS company, please don't hesitate to contact with us, we would like to give you ZYS best quality service any day any time!

Contact us
Address: No. 1 Jilin Road, Luoyang City, Henan, Province, China.
Zip Code: 471039
Website: chinazys.en.made-in-china.com