Recently, the loading of metro axle box bearings from ZWZ started in CNR Dalian Locomotive & Rolling Stock Co., Ltd. after passing through the loading test of the customers. The assembly of two metro locomotives has been completed before the National Day, and the assembly of the third metro locomotive will be completed in these days. The three locomotives will run on the Dalian Metro after delivering to Dalian Metro Corporation by the fourth quarter.
During the on-site loading wheel set running-in test, the metro axle box bearing temperature rise is comparable to that of foreign products while the noise of the bearing are better than that of foreign products. In terms of running-in test report and bearing quality, ZWZ metro axle box bearing can fully meet the level of advance product foreign products.
Product Model | Inside Diameter | Outside Diameter | Thickness |
KMJ20×26×17S NTN | 20 | 26 | 17 |
KMJ20×26×13 NTN | 20 | 26 | 13 |