Roller: A normal pulley has a slot for a belt, chain or cable. A reel is a wider pulley commonly utilised in cable techniques, enabling the cable to be wound around a number of occasions the diameter of the reel.
Roller: A normal pulley has a slot for a belt, chain or cable. A reel is a wider pulley commonly utilised in cable techniques, enabling the cable to be wound around a number of occasions the diameter of the reel.