A camshaft phase adjustment device, comprising: a housing having a first flange and a second flange, the first and second flange each having an opening (108, 136) for receiving a shaft wherein the shaft is received by the housing and extends through both of the first and second openings (108, 136); a driving gear member having a first gear disposed between the first and second flange (104, 106), a shaft receiving portion extending from the first gear through the first opening of the first flange and a driveshaft coupling portion positioned on a common side of the housing as the first end of the shaft, the driveshaft coupling portion configured to transfer rotational motion from the driveshaft to the first gear, and a passage extending through the shaft receiving portion configured to receive the shaft and allow rotation of the shaft relative to the driving gear member; a second and third gear (122, 124) disposed between the first and second flange (104, 106) and mounted on an axle secured to the housing and having a longitudinal axis, the longitudinal axis of the axle parallel to a longitudinal axis of the shaft, the second gear coupled to the third gear such that the third gear rotates with the angular velocity of the second gear, and wherein the teeth of the second gear are meshed with the teeth of the first gear and the teeth of the third gear are meshed with the teeth of a fourth gear; the fourth gear coupled to the shaft for transferring angular motion of the fourth gear to the shaft such that the shaft will rotate with the angular velocity of the fourth gear; and; the housing configured to be coupled to an actuator for rotating the housing about the longitudinal axis of the shaft; characterized in that the shaft is a camshaft, the shaft including a first end having cams and a second terminal end, the second terminal end received by the second opening; the driving gear member comprises a first piece comprising the driveshaft coupling portion and the shaft receiving portion and a second piece comprising the first gear, the first and second pieces comprising an interface that ensures that the driveshaft coupling portion and the first gear will rotate with the same angular velocity; and the second gear and the third gear are secured to one another by means of pins extending from one of the second and third gears (122; 124) into corresponding recesses in the respective other of the second and third gears (122; 124). a housing having a first flange and a second flange, the first and second flange each having an opening (108, 136) for receiving a shaft wherein the shaft is received by the housing and extends through both of the first and second openings (108, 136); a driving gear member having a first gear disposed between the first and second flange (104, 106), a shaft receiving portion extending from the first gear through the first opening of the first flange and a driveshaft coupling portion positioned on a common side of the housing as the first end of the shaft, the driveshaft coupling portion configured to transfer rotational motion from the driveshaft to the first gear, and a passage extending through the shaft receiving portion configured to receive the shaft and allow rotation of the shaft relative to the driving gear member; a second and third gear (122, 124) disposed between the first and second flange (104, 106) and mounted on an axle secured to the housing and having a longitudinal axis, the longitudinal axis of the axle parallel to a longitudinal axis of the shaft, the second gear coupled to the third gear such that the third gear rotates with the angular velocity of the second gear, and wherein the teeth of the second gear are meshed with the teeth of the first gear and the teeth of the third gear are meshed with the teeth of a fourth gear; the fourth gear coupled to the shaft for transferring angular motion of the fourth gear to the shaft such that the shaft will rotate with the angular velocity of the fourth gear; and; the housing configured to be coupled to an actuator for rotating the housing about the longitudinal axis of the shaft; characterized in that the shaft is a camshaft, the shaft including a first end having cams and a second terminal end, the second terminal end received by the second opening; the driving gear member comprises a first piece comprising the driveshaft coupling portion and the shaft receiving portion and a second piece comprising the first gear, the first and second pieces comprising an interface that ensures that the driveshaft coupling portion and the first gear will rotate with the same angular velocity; and the second gear and the third gear are secured to one another by means of pins extending from one of the second and third gears (122; 124) into corresponding recesses in the respective other of the second and third gears (122; 124).