An instrumented roller bearing, in particular for an electrical steering wheel
(12), comprises an outer component (1) and an inner component (6)
whereof one is mobile in rotation relative to the other which is fixed, through
at least a row of rolling elements (14) arranged between the components,
and elements for detecting (22, 23, 31) the rotating parameters of the rotary
component. The bearing further comprises electronic members (34) for processing
signals emitted by the detecting elements and electronic elements (35) for
controlling at least an actuator electrically connected to the device, advantageously
arranged on a printed circuit wafer (33) fixed in rotation.
