Camshaft and phaser assembly

An assembly comprising a camshaft and a hydraulically operated vane type phaser, the camshaft comprising

• an outer tube,
• an inner shaft mounted within the outer tube and rotatable relative thereto,
• a first set of cams secured for rotation with the outer tube, and
• a second set of cams rotatably mounted on the outer tube and connected for rotation with the inner shaft by way of pins that pass through circumferentially extending slots in the outer tube,
• and the phaser comprising
• an input member, and
• first and second output members that are axially clamped to the outer tube and the inner shaft of the camshaft, respectively, and the phase of at least one of which is adjustable relative to the input member, the assembly further comprising a support bearing formed separately from the camshaft on which the input member of the phaser is journalled and from the two output members of the phaser, the support bearing having passageways for supplying pressure medium to working chambers of the phaser and being axially clamped together with the first output member of the phaser to the outer tube of the camshaft,
• and wherein the second output member of the phaser is clamped by means of one or more fixings to the inner shaft of the camshaft.