Bearing Fault Identification Method Based on Collaborative Filtering Recommendation Technology

Figure 2

(a) Bearing test bench (① electric motor; ② insulated coupling; ③ principal axis; ④ supporting bearing pedestal; ⑤ current loading device; ⑥ test bearing’s bearing pedestal; ⑦ vibration acceleration sensor; ⑧ insulated bearing; ⑨ base; ⑩ current simulator); (b) sensors’ arrangement. d1, d2, and d3 represent direction 1, direction 2, and direction 3, respectively.