The clutch is used of heavy-duty roller blinds(shades) system.
Decelerate ratio is 1:1.7.
Force saved 20% off.
It does not need endless chain.
Material: High quality music wire spring, metal core. PA/POM/ABS for plastic components.
2mm-thick metal bracket.
Endplut is built in a compression spring to adjust mounting gap. It's very helpful for mounting.
It works with chain of 7.0* 12 or 4.8 * 6.
Wall mounting and ceiling mounting are optional.
Max Load 8 KGS, Max blinds area 14 square metres.
Service life is over 10,000 cycles.