in order to prevent damage of this kind, it is advisable to insulate the bearing seat in the housing or on the shaft. however, this entails additional design measures of the surrounding parts. a simple, economical approach in this case is to use electrically insulated rolling bearings from . since the key dimensions and performance data of the insulated bearings is identical with those of the corresponding uninsulated models, no changes to the overall design are required.
the most important advantages of these bearings are higher operating reliability, which is assured by optimal protection against electrical corrosion. are less expensive than, for example, applying insulation to housings or shafts. they are interchangeable with conventional bearings because they have the same key dimensions and technical characteristics. they also offer a reduced risk of damage and thus also longer operating life than conventional bearings when used in electrical machines. when electrically insulated bearings are handled properly, there is no risk of damage to the coating.
the main range of consists of cylindrical roller bearings and deep groove ball bearings, but all other bearing types can also be electrically isolated. application areas include traction motors of railway vehicles, and generators, particularly in conjunction with fast-switching frequency converters.
