Product development: E27/28 axle box bearing for high-speed train, axle box bearing for standard multi unit, axle box bearing for high-power locomotive, traction motor bearing, etc.

Product detection & assessment: damage assessment and risk analysis for axle box bearings, gearbox bearings and traction motor bearings;

Product failure analysis: failure mechanism analysis about stripping, scratching, electrolytic corrosion, retainer fracture of axle box bearings, gearbox bearings and traction motor bearings.

Product experimental research: reliability experimental verification, failure reoccurrence analysis, etc.

Performance of subway maintenance and detection

Beijing Subway Group

Vehicle Branch of Shanghai Rail Transportation Maintenance and Security Center

CRRC Changchun Railway Vehicles Co., Ltd.

Jiangsu BCP Traction System Co., Ltd.

CRRC Dalian Co., Ltd.

Project and product development

Launch the project of “development of axle box bearings for subway trains” with Zhuzhou Locomotive Co., Ltd.. Now, the bearing samples are being trial-manufactured.

Launch the project of “development of insulated bearings for Skoda engine” with Suzhou Subway. Now, the bearing samples are being trial-manufactured.

Launch the project of “development of axle box bearings for subway trains” with Tianjin Subway. Now, the bearing samples are being trial-manufactured.

Product detection & appraisal & failure analysis

Launch the project of “analysis of retainer fracture of traction motor bearings for HX2 locomotive” with Yongji Motor.

Launch the project of “analysis of defects in bearings for multi units and technological study on reliability enhancement” with Sifang Co., Ltd. This project, jointly launched by Sifang Co., Ltd. and our company, involves product detection, damage appraisal, failure analysis and reliability verification about axle box bearings for multi units, gearbox bearings and motor bearings. By far, more than 50 cases and nearly 100 sets of bearings have been analyzed.

Detection & assessment & failure analysis of product

Launch the project of “detection appraisal for big and small bearings of CRH380A gearbox” with Sifang Co., Ltd. A total of 120 sets of bearings have been detected and analyzed.

CSR Sifang Co., Ltd. performed the analysis of fatigue flake of bearings for high-speed trains.

CSR Sifang Co., Ltd. conducted the early failure analysis for bearings for high-speed trains after being used for 600,000 km.

CNR Yongji Motor conducted the early failure analysis for HXN3 traction motor bearings.

CSR Sifang Co., Ltd. conducted the analysis about electrolytic corrosion of bearings for high-speed trains.

CSR Qishuyan Institute launched the detection and appraisal for gearbox bearings.

CSR Qishuyan Institute launched the detection and appraisal for gearbox bearings.

CSR Sifang Co., Ltd. launched the detection and analysis for bearings for high-speed trains.

CSR Zhuzhou Institute launched the detection and appraisal for traction motor bearings.

Product detection & appraisal & failure analysis

Product experimental research

Launch the “test on residual life of CRH380A (L) gearbox bearings” with Sifang Co., Ltd..

Launch the “reliability test for CRH380A (L) gearbox bearings after Level V maintenance” with Sifang Co., Ltd..

Launch the “ball track stripping & extension test for axle box bearings for high-speed trains” with Sifang Co., Ltd..