图 上浒充通大学 Shanghai Jiao Tong University History
6 History
上浒充通大学 Shanghai Jiao Tong University Reconstruction of Old Bearing 840 44-45 11-16 110-115 700 +Di 7
7 Reconstruction of Old Bearing
上浒充通大学 Shanghai Jiao Tong University Development of the Bearing 3500B.C. 1794A.D. 官 1869 0 700B.C. 40A.D. CARB 1995 8
8 Development of the Bearing 700 B.C. 3500 B.C. 40 A.D. 1794 A.D. 1869 1995
上海充通大学 Shanghai Jiao Tong University Sliding or Rolling Bearings Sliding bearings: sliding friction u Rolling bearings: u rolling friction 9
9 Sliding or Rolling Bearings Sliding bearings: sliding friction µ Rolling bearings: rolling friction µ
上游充通大率 Shanghai Jiao Tong University Objectives of the Lecture Identify the types of rolling contact bearings,select the appropriate type for a given application. ■ Use the relationship between forces on bearings and the life expectancy for the bearings to determine critical bearing selection factors. Compute the equivalent load on a bearing corresponding to combinations of radial and axial loads applied to it. Specify suitable ball bearings for a given application. Understand certain practical considerations involved in the application of bearings. 10
10 Objectives of the Lecture Identify the types of rolling contact bearings, select the appropriate type for a given application. Use the relationship between forces on bearings and the life expectancy for the bearings to determine critical bearing selection factors. Compute the equivalent load on a bearing corresponding to combinations of radial and axial loads applied to it. Specify suitable ball bearings for a given application. Understand certain practical considerations involved in the application of bearings