Aktiebolaget Skf

Skf Aerospace France

Aidan Kerrigan

Rudolf Hauleitner

Guillermo Enrique Morales Espejel

Antonio Gabelli

Hans Wallin

John M Beswick

Charlotte Vieillard

Mohamed Sherif

Yves Maheo

Alexandre Mondelin

A Hybrid rolling bearing includes an inner raceway and an outer raceway and a plurality of rolling elements arranged therebetween. The outer raceway and the inner raceway are made from bearing steel, having a first surface RMS roughness R. The rolling elements are made from a ceramic material and have second surface RMS roughnesses R. At least one of the rolling elements has an increased surface RMS roughness R, which is significantly higher than the RMS roughnesses R, of the remaining rolling elements. The hybrid rolling bearing can be installed within a refrigerant compressor.

Hybrid rolling bearing, particularly for refrigerant compressor

A Hybrid ball bearing including an outer raceway, an inner raceway, and a plurality of balls arranged between the inner raceway and the outer raceway. The outer raceway and the inner raceway are made from bearing steel and have a first surface RMS roughness R. At least one ball of the plurality of balls is made from a ceramic material and has a second surface RMS roughness R. In a mint condition, the roughness of the raceways Ris 2 to 5 times higher than the roughness Rof the at least one ball, as well as a refrigerant compressor comprising such a hybrid ball bearing.

Hybrid ball bearing, particularly for refrigerant compressor

A hybrid roller bearing having an inner raceway and an outer raceway and a plurality of rollers arranged therebetween. The inner raceway and the outer raceway are made from bearing steel and have a first surface RMS roughness R. At least one roller is made from a ceramic material and has at least at the roller raceway a second surface RMS roughness R. The roughness of the raceways Ris 1.2 to 4 times higher than the roughness Rof the at least one roller, as well as a refrigerant compressor with such a hybrid roller bearing.

Hybrid roller bearing, particularly for refrigerant compressor

Growing community of inventors

Utrecht, Netherlands

Aidan Kerrigan