NINE STAR provides bearings with oxide ceramic insulating layers on the bearing ring. Applied with plasma technology,
 the insulation has a guaranteed breakdown resistance of at least 1000V AC or DC. Two variants are available:
VL0241: Insulation on the outer ring
VL2071: Insulation on the inner ring
Advantages
1. Higher operational reliability through optimum protection against electrical corrosion
2. More economic than, for example, insulation on housings or shafts
3. Interchangeable: Same key dimensions and technical properties as conventional bearings
4. Coating resistant to damage if correctly handled
Typical applications
A. Traction motors of railway vehicles
B. Electric motors (AC/DC)
C. Generators (e.g. in wind turbine generators)