25.1. 2022
New generation of bearings for traction motors
ZKL constantly expands its range of bearings for railway applications. New types and dimensions of bearings designed for traction motors are being added to the already established axle bearings.
Special cylindrical roller bearings in so called “TM01” design are being developed for foreign customers engaged in the production of diesel-electric locomotives. These bearings are equipped with a “MP” cage - machined, one-piece, roller centered type. This cage and its functional surfaces allow to achieve optimal bearing lubrication and low heat generation. “MP” cages are designed for medium and large-size bearings of traction motors and for heavy loads, including shock loads.
Another special feature is a ceramic coating on the outer ring of the bearing. The layer of Al2O3 insulates the bearing from the seating surfaces and thus prevents the passage of stray electric currents through the bearing. The passage of electric current is a negative phenomenon, as it causes erosion in the raceways of the rings and, as a result, significantly shortens the life of such affected bearings. Thanks to their design, ZKL bearings for traction motors are adapted to the most demanding operating conditions. One of them is, for example, the newly developed bearing NUP417EMP TM01.
For more information about the entire range of ZKL railway bearings click here
Another special feature is a ceramic coating on the outer ring of the bearing. The layer of Al2O3 insulates the bearing from the seating surfaces and thus prevents the passage of stray electric currents through the bearing. The passage of electric current is a negative phenomenon, as it causes erosion in the raceways of the rings and, as a result, significantly shortens the life of such affected bearings. Thanks to their design, ZKL bearings for traction motors are adapted to the most demanding operating conditions. One of them is, for example, the newly developed bearing NUP417EMP TM01.
For more information about the entire range of ZKL railway bearings click here