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 88 Development of the Bearing 700 B.C. 3500 B.C. 40 A.D. 1794 A.D. 1869 1995