Special precision bearings

We have rich experience and advantages in manufacturing the special bearings, aviation bearings, satellite attitude control momentum wheel, etc. which perform under the special conditions, such as high temperature, low temperature, high speed, heavy duty, vacuum, radiation protection, anti-magnet, sensitiveness, high precision, long life and other special working conditions. Such mature technology has also been widely used in civilian high-tech regions.

ZYS bearing steel

ZYS has made many China national and industrial standards for bearing steels, such as High Carbon Chromium Bearing Steel, High Carbon Chromium Bearing Steel Specification for Military Use,High Carbon Chromium Bearing Steel Wire, High Carbon Chromium Bearing Steel Seamless Tube, Stainless Bearing Steel Specification, etc. Our main products include GCr4、G8Cr15、GCr15SiMo and such high carbon chrome bearing steels, 7Cr14Mo new type stainless bearing steels, S2 impact resistance bearing steel. 

ZYS precision angular contact ball bearing

ZYS precision angular contact ball bearings consist of high-precision angular contact bearings (standard series),super high-speed angular contact ball bearings,high-speed sealed angular contact ball bearings and high-speed spindle bearings.The inner ring,outer ring and rolling elements of bearing under normal working conditions are made of high carbon chromium bearing steel.To meet the special requirements,such as super high speed,wear-resisting,low temperature rising,long life and high reliability etc.,it’s suggested to use hybrid ceramic ball bearings.ZYS precision hybrid bearings with ceramic ball (HQ1) can significantly improve the speed,rigidity,reliability,and productivity of machine tools,and greatly reduce the friction heat,then extend the service life of host machine etc.Spindles also play an important role in improving the production efficiency and machining quality.Up to now,ZYS has developed 8 groups,20 series and more than 200 varieties of high-frequency spindles.The rated speeds are from 1,500r/min to 150,000r/min.High-speed precision bearings and air static pressure bearings are used as main support.Lubrications include grease,oil mist,oil gas,etc.