A partially polymerised thermohardenable connection part and to methods for producing and assembling such a connection part are described herein. The connection part for connecting two mechanical parts is thermohardenable and is partially polymerised in such a way as to be rigid at room temperature and able to be subjected to a subsequent polymerisation, the connection part being thus both sufficiently rigid to be able to be manipulated and brought into contact with at least one of the two mechanical parts which it is to interconnect and able to be subjected to a subsequent additional polymerisation in order to achieve its final polymerised state, the material of the connection part being rendered sufficiently soft during the additional polymerisation that it can adapt to the form of at least one of the mechanical parts to which the connection part must be connected.

Provided is a rolling bearing (1) in which, when an area enclosed by a line connecting outer edges of a scatter diagram obtained by plotting innumerable positions, at which a cage (5) located at a neutral position is allowed to exist without contact with balls (4), on a two-dimensional coordinate system is defined as a cage movable area (10), a ratio Ri/Re of a maximum inscribed circle diameter Ri of the cage movable area (10) to a minimum circumscribed circle diameter Re of the cage movable area (10) is set to be equal to or smaller than 0.900.