Surface coating and special sealing
The drawn cup needle roller bearings are protected against corrosion by the Corrotect® N coating. Corrotect® N is an extremely thin surface coating free from chromium VI, developed by the Schaeffler Group. It protects products and components against corrosion and especially against the formation of rust on the running surfaces under the seals, which could be caused by condensation, rainwater or contaminated water. In comparison with conventional coatings, Corrotect® N offers up to 50% greater protection against corrosion. As a result, the service of the seals and rolling bearing components can be significantly improved. The seals of the drawn cup needle roller bearing for the Knorr braking system were specially developed and designed to fulfil the particular requirements of this application.
Picture: Schaeffler Group
The axlemounted brake calipers in the braking system of the new Shinkansen E5 are fitted with the needle roller bearings, drawn cup needle roller bearings, inner rings, axial bearing washers, bearing washers and axial needle roller and cage assemblies from INA.