Patent ID: 11525479

Abstract:
An anti-electrolytic corrosion rolling bearing includes an inner ring and an outer ring, rolling elements, and a thermal-sprayed ceramic film having electrical insulating properties, and disposed on one or each of the inner peripheral surface of the inner ring and the outer peripheral surface of the outer ring. The thermal-spray material forming the thermal-sprayed ceramic film contains, as the main component thereof, alumina particles having particle sizes of 5 μm to 60 μm and an average particle size of 30 μm to 60 μm. The thermal-sprayed ceramic film is densified by filling the pores between the alumina particles, with a predetermined amount of glassy melts of a metal oxide having a melting point lower than that of the alumina, such as silica, yttria, titania or zirconia, and having an average particle size of 5 μm to 40 μm.