High revolutions and heavy loads limit the life expectancy of the bearing in a turbocharger. Worn and damaged bearing assemblies are replaced in their entirety by new ones, or, on exchange basis, by reconditioned assemblies. Our partner has a modern well equipped bearing room and a comprehensive stock.

Bearing assemblies accepted in an exchange agreement are dismantled and carefully cleaned. The ball and rolling elements are discarded. The other elements are carefully checked, measured and where possible reused. Measurement takes place in a special "clean room" maintained at a constant temperature. This is necessary to achieve a measuring precision of the of one thousandth of a millimetre.

The reusable components are reassembled, using new ball and/or rolling elements, into new units. The ball bearings are manufactured by SNR France, exclusively for our partner, to the P4/P5 class of tolerance.

The bearings are then assembled into the bearing housing on a test bench. For this our partner has developed a special measuring system so that the correct position of the bearing, at a certain test pressure, can be determined with great accuracy.

After adjustment the bearing units are submerged in a bath of preservative for minimum of half an hour to allow all the air to escape. They are finally sealed in airtight metal containers and are then stored as spare parts.

About SNR - who produce our bearings

SNR is one of the largest bearing manufacturers in Europe and is a long time partner of the CMF56 engine which is the engine of choice for Boeing & Airbus.

SNR has been in partnership with TGV since its launch & is also the partner of the A380 airliner.

SNR Aerospace Division has its very own site with quality, technical & production departments.

SNR is the only manufacturer to mark individual serial number. This is useful in determining cause or managing quality issues in the event of failure.

SNR is the only manufacturer to vaccum seal the bearings giving longer storage life.

SNR enforce strict quality controls which result in delivery of high quality bearings. The critical dimension checks include maintaining:

Consistency in runout / bore diameters Minimum contact angle variation between two BS ball bearings which ensures that loads are equally distributed. Perfect curvature of parts.