Valve timing control device

A valve timing control device comprising:

• a driving rotary element synchronously rotatable with a crankshaft;
• a driven rotary element mounted coaxially with the driving rotary element and synchronously rotatable with a camshaft;
• a plurality of partitions provided in the driven rotary element each for dividing a fluid pressure chamber formed between the driving rotary element and the driven rotary element into a retarded angle chamber and an advanced angle chamber;
• a connecting element having a press fitting portion that is press-fitted into a recess formed in the driven rotary element for connecting the driven rotary element to the camshaft, the recess having a stepless inner periphery,
• wherein the press fitting portion includes a plurality of fitting segments spaced apart from each other along a rotational direction to fit to an inner circumference of the recess,
• the plurality of fitting segments contact the inner periphery while a plurality of cutaway segments each formed between the adjacent fitting segments are spaced from the inner periphery, and
• at least one of centerlines of the fitting segments extending in a radial direction does not overlap any of the partitions.