ZYS precision bearing, ball bearings, roller bearings, bearing parts

  The only state-level comprehensive research institute in China's bearing industry ZYS performs batch production of various high-rank bearing products and components with inner diameter of 0.6mm to outer diameter of 6.8m. We are mainly engaged in the research, development, production and sales of precision bearing , special bearing , high-speed machine tool spindle, bearing special equipment, bearing testing instruments, bearing testing machine and bearing special materials , which are widely used in the fields of aerospace, machine tools, wind power generation, mine metallurgy, petrochemical, medical equipment, automobiles and rail transit, construction machinery, intelligent manufacturing services, etc. http://www.zys-bearing.com/solution/metallurgy-and-construction.html

The slewing bearing is a large bearing that can withstand comprehensive loads, and can simultaneously withstand large axial and radial loads and overturning moments. Slewing ring bearings are generally equipped with mounting holes, internal gears or external gears, lubricating oil holes and sealing devices, which can make the host design compact, easy to guide, and easy to maintain. Slewing ring bearings have four-point contact ball bearings without gears, external gears and internal gears, double-row angular contact ball bearings, crossed cylindrical roller bearings, crossed tapered roller bearings and three-row cylindrical roller composite bearings. Series, four-point contact ball bearings have higher static load capacity, crossed cylindrical rollers have higher dynamic load capacity, and the pre-interference of crossed tapered roller bearings enable the bearings to have greater support rigidity and rotation accuracy. The three-row cylindrical roller combined bearing leads to the hei...

 Four-point contact ball bearing is a separable bearing, or a set of angular contact ball bearings that can bear bidirectional axial load. The inner and outer ring raceways are peach-shaped sections. When there is no load or pure radial load, the steel ball and the ring appear as four-point contact, which is also the origin of this name. When only the pure axial load acts, the steel ball and the ferrule become two-point contact, which can bear the bidirectional axial load. Four-point contact ball bearings can also Bearing moment load, it has the functions of single row angular contact ball bearing and double row angular contact ball bearing. Four-point contact ball bearings can only ensure normal operation when they form two-point contact. Therefore, it is generally suitable for those occasions where there is two-point contact under pure axial load or synthetic load with large axial load. The four-point contact ball bearing has a high limit speed and is also suitable for those high...

sealed angular contact ball bearing can bear both radial and axial loads. Can work at higher speeds. The larger the contact angle, the higher the axial load carrying capacity. The contact angle is the angle between the line connecting the contact point of the ball and the raceway in the radial plane and the vertical line of the bearing axis. High-precision and high-speed bearings usually take a contact angle of 15 degrees. Angular contact ball bearings have raceways on the inner and outer rings, and the inner and outer rings can be relatively displaced along the bearing axis. This type of bearing is particularly suitable for bearing compound loads, that is, loads acting simultaneously in the radial and axial directions.

Elastic sheet gas dynamic pressure bearings ( Thin section bearing ) are more and more widely used in aerospace and civil high-speed machinery (such as gas turbochargers, high-speed centrifuges, oxygen generators, air-jet spinning) because of their high-speed dynamic performance. Yarn machine, liquid rocket propulsion system, rail transporter) and other fields. Their uniqueness lies in their outstanding performance, despite the weight and space constraints. Minimal, the usual square cross-section allows high precision of the mechanism.