ROLLING BEARING IN AIRCRAFT

摘要

Disclosed is a single-row or multi-row rolling bearing (1, 2) comprising thin-walled bearing races (3, 4, 5) which are made of a martensitic, fully hardened steel and have the following characteristics: a surface hardness (7, 7a) of = 613 HV (56 HRC) in the area of the bearing face; a core hardness (8) of = 285 HV (28 HRC); a difference (<) of = 150 HV (9HRc) between the surface hardness and the core hardness; the core hardness is reached at a depth ranging between 8 percent of the diameter of the rolling elements and 90 percent of the wall thickness on the bottom of the track; and a ratio of = 20 between the diameter of a partial circle Tk and the diameter of a rolling element DW.