Gates PowerGrip GT2 Sprocket 3MR-21S-09 7843-6006 - aluminum material 3mm pitch 0.79 inch pitch diamter 21 grooves MPB with a bore range of 1/4 - 1/4 inch for 9mm wide PowerGrip belts.
Markets/Applications Use with 2MGT and 3MGT PowerGrip® GT®3 belts