Climax Metals RC-037 Black Oxide Plated Mild Steel Rigid Coupling, 3/8" Bore, 3/4" Outside Diameter, 1" Length, 1/4"-20 x 3/16" Set Screw

Makermotor 3/8" D Shaft Variable Speed Electric Gear Motor 12VDC Max. 50RPM

RioRand 12V-40V 10A PWM DC Motor Speed Controller with Knob-High Efficiency, High Torque, Low Heat Generating with Reverse Polarity Protection, High Current Protection

uxcell GA/GB 37mm diameter DC Geared Motor Mounting Bracket Holder 6mm Hex Coupling

Makermotor 3/8" D Shaft 12V DC Reversible Electric Gear Motor 50 RPM + Reversible DPDT Switch

RioRandTM Upgraded 6V-90V 15A DC Motor Pump Speed Controller

DC Momentary Reversing Rocker Switch (double pole double throw) with wire pigtails

Makermotor 3/8" D Shaft 12vdc Remote Control Wireless Electric Gear Motor Momentary Switching between Reverse and Forward ...

Climax Part CC-050-037 Mild Steel, Black Oxide Plating Clamping Coupling, 1/2 inch X 3/8 inch bore, 1 1/4 inch OD, 1 7/8 inch Length, 8-32 x 1/2 Set Screw

DZS Elec 1pc DC Motor Speed Controller 9-60V Forward/Reverse High Power PWM Control Switch Motor Speed Regulator DC 12V 24V 36V 48V 60V 20A 1200W

Climax Part RC-025 Mild Steel, Black Oxide Plating Rigid Coupling, 1/4 inch bore, 1/2 inch OD, 3/4 inch Length, 10-32 x 1/8 Set Screw