High-speed angular contact thrust ball bearings

Model Number: 70 A/DB Brand Name: ZYS Key Specifications/Special Features: As the substitutes of double direction angular contact thrust ball bearings, high-speed angular contact thrust ball bearings consist of two pieces of angular contact ball bearings with 30 ° or 40 ° contact angle and in back-to-back arrangement. These bearings and double direction angular contact thrust ball bearings have the same outside diameter tolerance of outer ring, then there is clearance between outside diameter and the hole of bearing housing in assemble, therefore, high-speed angular contact thrust ball bearings do not bear radial load.High-speed angular contact thrust ball bearings not only maintain high rigidity, but also realize high speed and low temperature rise.The codes of ZYS high-speed angular contact thrust ball bearings are 70 A/DB (contact angle 30 °) and 70 B/DB (contact angle 40 °).In order to achieve the easy interchange between high-speed angular contact thrust ball bearings and double direction angular contact thrust ball bearings, high-speed angular contact thrust ball bearings are adopted with a special width dimension, which is shown in Fig. 2, 2B = A. When the high-speed angular contact thrust ball bearings are substituted for double direction angular contact thrust ball bearings, the structure and dimensions of shaft and bearing do not need changing, while the washer D should be substituted for the washer C.1). About ZYS companyZYS 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.ZYS is a high-tech enterprise, which focuses on the research and development of "high-tech, precise, cutting-edge, specialized and special" bearing products, which are applied to the mainframes of national economic construction in various fields and national defense construction. It was listed at Shenzhen Stock Exchange with stock code 002046 in 2005.2). Glory

1. China national accreditation laboratory for bearing
2. State key laboratory for bearings of earth pressure balance shield
3. State quality supervision and testing center for bearing
4. National technical committee for rolling bearing standardization
5. ISO/TC4 China Secretariat
6. National patent exchange workstation
7. The technical committee of china bearing industry association
8. The research center for high-speed precision bearing engineering
9. The bearing industry branch of machinery industry professional skill appraisal center
10. Listing company in Shenzhen stock, stock no.002046