Patent ID: 7669568

Claim:
A valve timing controller adjusting a valve timing of an intake valve and/or an exhaust valve of an internal combustion engine, comprising: a torque generation means including an output rotor for generating a control torque which is outputted from the output rotor; a phase adjusting mechanism including an input rotor connected with the output rotor, and adjusting a relative rotational phase between a crankshaft and a camshaft of the internal combustion engine according to the control torque which is inputted into the input rotor from the output rotor; and a bearing member for rotatably supporting the input rotor; wherein the input rotor forms a cylindrical input wall press-inserted into an inner circumference of the bearing member, the input wall is provided with a fitting recess on its inner surface for engaging with the output rotor, the input wall is provided with a thin-wall portion of which thickness is reduced in a radial direction, and the fitting recess and the thin-wall portion are circumferentially arranged apart from each other.