ZYS rail transportation bearings, gearbox bearings

Model Number: Gearbox bearings Brand Name: ZYS Key Specifications/Special Features: As a technical department in charge of bearing industry, Luoyang Bearing Research Institute has rich experience and plentiful scientific payoffs in the study of basic theory and application technology of rolling bearing, design and application of various special and general bearings. The institute had undertaken a batch of projects such as “CAD of General Bearings”, “Design of Key Bearings for Medium to Large-scale Wind Turbine Generator Set”, “Research and Industrialization Engineering of Vibration and Noise Reduction in Deep Groove Ball Bearing”, “FEA of Convexity of Tapered Roller Bearing”, “Study of Life Extension Technology for Front Hub Bearing of SANTANA”, “FEA of Tapered Roller Bearings for Cargo Train”, which are all national, provincial and industrial key scientific and technological projects, and got a batch of important technological achievements. In products, the institute did comprehensive and systematical research of automobile hub bearing, clutch release bearing, constant velocity joints, gearbox bearing, motor bearing and air conditioner bearing. The major role of rolling bearings inside gearbox is to stable the shaft and to support driving force, which means that they must sustain extreme load in a complex environment. Requirements of gearbox bearing are as follows:High speedHigh loading capacityResistance [d1] of vibration and impactHigh temperature resistanceHigh rotation accuracyCompact designBearings for gearbox are mainly tapered roller bearing, four-point contact ball bearing and cylindrical roller bearing, there are also deep groove ball bearing, self-aligning roller bearing and angular contact bearing. According to different designs and operating conditions of gearbox, bearing’s configuration is various.Tapered roller bearing belongs to separable bearing, whose outer ring and inner ring component can be assembled separately. Edge stress can be avoided by re-corrected line contact between rolling element and raceway, it can bear big radial load and axial load simultaneously. This kind of bearing can only bear unilateral axial force, so in order to transfer reverse axial force and to balance the eccentric force, another tapered roller bearing should be assembled symmetrically.Four-point contact ball bearing belongs to single row angular contact ball bearing. It can bear axial force in two directions, so a cylindrical roller bearing used for bearing axial force is usually paired with it, in radial direction they adopt loose fit. In conditions of low friction and especially high speed, a minimum axial force is needed. An inner ring in split form makes the bearing accommodate more balls.Depending on structure dimensions of gearbox and considering above factors, special designs as follows can be used for gearbox bearing.

Shipping Information:

• FOB Port: Shanghai
• Lead Time: 3 - 40 days

• Dimensions per Unit: 31 × 27 × 16 Centimeters
• Weight per Unit: 300 Kilograms
• Units per Export Carton: 45
• Export Carton Dimensions L/W/H: 31 × 27 × 16 Centimeters
• Export Carton Weight: 300 Kilograms

Main Export Markets:

• Asia
• Central/South America
• Eastern Europe
• Mid East/Africa
• North America
• Western Europe