High revolutions and heavy loads limit the life expectancy of bearings in a Turbocharger. Worn and damaged bearing assemblies are replaced in their entirety by new ones. TurboNed 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. Measurements take place in a special "clean room" maintained at a constant temperature. This is necessary to achieve a measuring precision of one thousandth of a millimeter.
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 TurboNed, complying the P4/P5 class of tolerance.
The bearings are then assembled into the bearing housing on a test bench. For this, TurboNed 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 adjustments, the bearing units are submerged in a bath of preservative for a 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.
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.

 
TurboNed Mid East FZC P.O. Box: 9058, S.A.I.F. Zone, Sharjah, U.A.E. Tel: + 971 6 557 3134 Fax: + 971 6 557 3135 Email: sales@tnme.com