Ellipse Hydrodynamic Journal Bearings

The bearing whose sliding friction is composed by the shaft and supporting pieces is sliding bearing. Bearing neck and bearing shell are the most basic elements of the structure. The part of bearing supported is the bearing neck who is usually circular and conical. The supporting pieces suitable the bearing is bearing shell. The integral tubular bearing shell is bearing ring and the separated arc shell is bearing shell.

Both collectively parts are called bearing shell. The bearing shell is usually designed by wearing pieces so that it can be changed easily.

According to the different lubricants, sliding bearing can be divided into solid lubricated bearing, liquid lubricated bearing and gas lubricated bearing. According to the different mechanism of lubrication, liquid lubricated bearing can be divided into dynamic pressure sliding bearing, plain sliding bearing and static hybrid mixed sliding bearing.

According to carrying different directions, the dynamic pressure sliding bearing can be divided into radial sliding bearing and thrust sliding bearing. The radial bearing can also be divided into the radial fixed shell sliding bearing and the radial tilting shell sliding bearing. The radial fixed shell sliding bearing can also be divided into round bearing (single-lobe), elliptic bearing {double-lobe}, three oil leaves bearing, four oil leaves bearing, two oil wedge(stagger)bearing, three oil leaves(directional)bearing, four oil leaves(directional)bearing, bilateral oil supply bearing, circle oil supply bearing, ladder bearing and screw groove bearing.

The thrust sliding bearing can be divided into inclined fixed shell thrust bearing, inclined plane fixed shell thrust bearing, ladder fixed shell thrust bearing, screw groove fixed shell thrust bearing, tilting shell thrust bearing and elastic tilting shell thrust bearing.

Sliding bearing is used in the occasion in which rolling bearing can not be used easily, such as high-speed rotation, long-life, low friction, the impact load. In the absence of standardized series, they are usually non-standard design and produce. The Bearing Institute of Shanghai University has provided bearing calculation, rotor vibration analysis, system design, and other technical services for Shanghai Turbine Company, Shanghai Blower Company, High-speed Gearbox Factory of Nanjing, Institute of Machinery of Zhengzhou, Oriental Steam Turbine Company, Harbin Steam Turbine Company and Shenyang Liming Aero-Engine Group Co., Ltd.

Various SZY brand sliding bearing relying on professional development of The Bearing Institute of Shanghai University, currently provide sliding bearing for the import unit(Ingersoll-Rand, Elliott, Sulzer, Siemens, Hitachi, Nuovo Pignone, Atlas). We have solved various technical sliding bearing problems and provided valuable products and inexpensive services for many fields, such as petroleum, chemicals, fertilizers, iron and steel, metallurgy, coking, pharmaceutical, glass manufacturing and power electronics. The dynamic pressure cylinder radial sliding bearing be used for the high-speed pump. We can develop and produce various types of non-standard sliding bearing for the client.