In the testing phase, for every lot of bearings produced, TTS’s technical staff uses a specific procedure that defines: What to check, the percentage of the items to be checked, type of instruments to be used and how to use them.

TTS’s standard procedure includes the verification of the accurcy in dimensions and shape, surface hardness, surface finish and other characteristics related to the specific type of bearing ( eg: axial or radial clearance, run-outs etc). Along with these tests, other type of tests can also be performed as per the agreement with the customer during the order.

In addition to this,other tests can also be carried out, such as metallographic & micrographic analysis, hardness distribution from the surface to the centre of the material.These are useful to check the quality of the raw material and the performed heat treatment.

The calibration of all the instruments is carried our periodically from an accredited third party to guarantee the corectness of quality control.