The QC department of Gelonger Bearings if fully equipped with all the necessary testing and inspection facilities, including measuring gaues. On-line inspection devices and the numerous instruments for testing bearing functional performance.Some of our QC instruments and meters are imported from the UK、Japan and Germany,We inspect every item with Talyrond roundness testing instruments before packaging.Our team alos performs noise and vibration testa as well as radial and axial clearance inspections. We offer a 100-percent replacement guarantee to ensure complete customer satisfaction We have ISO 9001:2000,QS-9000 and VDA 6.1 certifications,And we are in the certification process for ISO/TS 16949.

We also have experienced professional inspectors and engineers guided by a ISO 9001:2000 - and ISO/TS 16949:2002 - certified quality management system. All raw materials and components are subject to rigid metallurgical tests and only qualified materials are used. All components processed in every manufacturing stage are inspected and tested strictly

All our components are cleadned after grinding.and all ther finished products are cleaned and dried several times.100% test  before packing.