Self-lubricating rolling bearing has at least one rolling body which has open pores and manufactured from ceramic, and with open pore proportion of up to 10 per cent

摘要

The bearing has at least one rolling body(8) which has open pores and manufactured from ceramic. The ceramic rolling body has an open pore proportion of up to 10 per cent. The diameter of the pores is up to 8 micrometers, and the surface roughness is up to 0.1 micrometers. The ceramic rolling body has a diameter which is 0.1 to 0.3 per mil smaller than the diameter of the other rolling bodies(5). The ceramic rolling body may consist of silicon nitride.