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Roll Shutter Gears, Select Plastic or Metal, Choose 11:1 Ratio or 8:1 Ratio.
Fits 7MM Hex Shaft Universal Pivots into the side hex hole on the gear.
Each kit comes with the Roll Shutter Gear, a Plastic Gasket, a Metal Gear Adaptor, 2 Bolts, and 2 Washers, and come in a Factory Sealed Bag.
The 11:1 Ratio Roll Shutter Gear measures 3 7/8" Long, by 3" Wide , by 7/8" Thick. The gear adaptor is 1/2" Solid Square to 3/4"OD Hollow Hex with 1/2" Round insert.
The 8:1 Ratio Roll Shutter Gear measures 3 1/2" Long, by 3" Wide, by 7/8" Thick. The gear adaptor is 1/2" Solid Square to 5/8"OD Hollow Hex with 1/2" Round insert.
Select;
Roll Shutter Gear, 8:1 Ratio, 7MM Hex, 44 lbs max, - Choose Plastic or ZAMAC Metal.
Roll Shutter Gear, 11:1 Ratio, 7MM Hex, 66 lbs max, - Choose Plastic or ZAMAC Metal
These gears have a Hex center hole and a Hex side hole.
If you have a Square universal pivot shaft, you'll need the Square to Hex Adaptor.