Improved swivelling link member

摘要

The unit (10) has an outer ring (14) with general shape of revolution around an axis, comprising an inner surface provided with an outer raceway (30). A row of balls (16) is aligned circumferentially and extended radially between the inner raceway (18) and the outer raceway. The outer surface of the inner ring comprises a portion with a truncated sphere shape, forming the inner raceway. The inner surface of the outer ring comprises, for each row of balls, a groove with shape complementary to that of the balls of the row, for forming the outer raceway. The inner and outer rings are made of stainless steel comprising hardness lower than 58 HRC. An independent claim is also included for an end fitting for a control linkage, in particular for flight controls for an aircraft.