Abstract: An encoder for recording measured values, which depend on the rotating angle between a shaft (12) and a housing (10) containing the shaft (12), exhibits a stator (20) which is secured to the housing (10), a rotor (30) which is secured to the shaft (12), and a scanner which records the rotation of the rotor (30) relative to the stator (20). An elastic ring (42) with supporting points (44) rests on the circumference of the stator (20). In the mounting process the encoder is positioned on the shaft until the stator (20) is axially braced against the housing with the supporting points (44) of the elastic ring (42). In this auxiliary position the rotor (30) is fixed in position on the shaft. Then the stator is pressed against the housing while working against the force of the elastic ring (42) and is secured to the housing.