Hi, when I removed the timing belt pulley it doesnt seem to be fixed to the motor shaft, it just spins around freely...Is this correct, how is it going to turn together with the engine if it isnt mounted at all, it seem to be able to spin freely.....?

car is aFORD Focus Mk1 Kombi (DNW) 1.6 16V Flexifuel (75 KW 2004