上海充通大学 Shanghai Jiao Tong University Mechanical Design and Manufacturing ll Transmission Support Bearings(轴承)
1 1 Mechanical Design and Manufacturing II Transmission Support Bearings（轴承）
上潘充通大学 Shanghai Jiao Tong University Lectures Power/Energy Conversion (Electrical Motors) Power/Energy Transmission (Gears, Belt Drives, Power Screws) Transmission Joints (Fasteners, Support Structural Connectors) (Bearings) Support (Frames Shafts Axles Spindles) Tools Stress Analysis, Failure Theories Dynamics,Statics,Etc.... 2
2 Lectures Power/Energy Conversion (Electrical Motors) Power/Energy Conversion (Electrical Motors) Power/Energy Transmission (Gears, Belt Drives, Power Screws) Transmission Transmission Support Support (Bearings) (Bearings) Joints (Fasteners, Connectors) Structural Support (Frames Shafts Axles Spindles) Tools Stress Analysis, Failure Theories Dynamics, Statics, Etc…
上潘充通大学 Shanghai Jiao Tong University Principles of Operation Rolling Friction (Rolling Contact Bearing滚动轴承) Roller/ball (滚子/球) Outer Ring(外圈) Lubrication (润滑剂) Inner Ring(内圈) Sliding Friction(Sleeve Bearing滑动轴承) Hydrodynamic lift is Sleeve(轴套) generated by fluid being dragged into gap by viscous shear Lubrication Circumferential pressure profile 3
3 Principles of Operation Rolling Friction (Rolling Contact Bearing 滚动轴承) Roller/ball （滚子/球） Lubrication （润滑剂） Outer Ring（外圈） Inner Ring（内圈） Sliding Friction (Sleeve Bearing 滑动轴承) Sleeve（轴套） Lubrication Circumferential pressure profile Hydrodynamic lift is generated by fluid being dragged into gap by viscous shear
上淄克通大学 Shanghai Jiao Tong University Why Bearings Bearing is defined by Webster's to be "a support or supporting part” In machine design,a bearing is a component that allows for relative motion between two bodies Bearings are for: ● reduce friction ● carry load ● guide of moving parts Carriage Rotary Encoder ☒ AC Brushless Motor Flexible Coupling Rearing Housing Ballscrew Ballnut Support Bearings
4 Why Bearings Bearing is defined by Webster’s to be “a support or supporting part” – In machine design, a bearing is a component that allows for relative motion between two bodies Bearings are for: reduce friction carry load guide of moving parts
上潘充通大学 Shanghai Jiao Tong University Bearings Applications 大
5 Bearings Applications