Fan module equipped with an oil transfer device

A fan module for an aircraft turbine engine, the module comprising a fan which comprises a fan shaft and variable pitch fan vanes, and an oil transfer device configured to ensure a transfer of oil between a stator and an actuator that is secured in rotation to the fan shaft and that is configured to control the pitch of the fan vanes, the device comprising:

• a stator annulus comprising a first cylindrical surface and first internal oil pipes which each open onto said first cylindrical surface, and
• a shaft engaged in said annulus and comprising a second cylindrical surface extending inside said first cylindrical surface, the shaft comprising second internal oil pipes which each open onto said second cylindrical surface,
• wherein said fan module further comprises:
• a plain bearing (P) located between said first and second cylindrical surfaces, and
• upstream and downstream rolling bearings mounted between the annulus and the shaft, on either side of the plain bearing (P), each of the upstream and downstream rolling bearings comprising rolling members between a first annular rolling track and a second annular rolling track,
• and one of the annulus and the shaft is a first element and the other is a second element,
• wherein the first element carries rings defining the first rolling tracks of the upstream and downstream rolling bearings, the second rolling tracks of the upstream and downstream rolling bearings being integrally formed with the second elements such that the second rolling tracks of the upstream and downstream rolling bearings and the second elements form one single piece,
• and the plain bearing (P) is formed by a single shrink ring interposed between the first and second cylindrical surfaces and attached to one of said elements.