Valve timing controller

A valve timing controller for an internal combustion engine, the valve timing controller being disposed in a system in which a torque of a crankshaft is transmitted to a camshaft which adjusts a valve timing of at least one of an intake valve and an exhaust valve, comprising:

• a guide rotation member provided with a guide groove;
• a bearing rotation member radially supporting the guide rotation member;
• a plurality of movable bodies sliding in the guide groove in accordance with a rotation of the guide rotation member;
• and
• a plurality of link mechanisms connecting the bearing rotation member with each one of movable bodies respectively, and rotating the bearing rotation member in accordance with a movement of the movable bodies, wherein
• the valve timing of at least one of the intake valve and the exhaust valve is adjusted in accordance with a rotation of the bearing rotation body, and
• a clearance gap is provided between the guide rotation member and the bearing rotation member in order to permit a relative radial movement of the guide rotation member with respect to the bearing rotation member.