China OEM Roller Shutter, Plastic Pulley for Manual Roller Shutter near me shop

Solution Description

 

Other Comp1ts Can be Choosed

As a specialist producer, we not only provide products, also can supply all kinds of compents and materials which employed on roller shutters/door.

Our Goods Application

Operating Method for Roller Shutters

 

Movable Pulley: A pulley that rotates and interprets according to the motion of the pulley or belt. This is typically employed in blocking and tackle methods, which I will describe later.
Active Pulley: The “enter” pulley in a twin-pulley system. The shaft of this pulley is driven by something like a motor, a crank, or probably yet another pulley in more substantial systems. This pulley controls the motion of the belt.

China OEM Roller Shutter, Plastic Pulley for Manual Roller Shutter     near me shop