Climax Metals RC-025-A Aluminum Rigid Coupling, 1/4" Bore, 1/2" Outside Diameter, 3/4" Length, #10-32 x 1/8" Set Screw

National Hardware N179-762 4005BC Smooth Rod in Zinc plated

PGN - R4-2RS Sealed Ball Bearing - 1/4"x5/8"x0.196" - Lubricated - Chrome Steel (10 PCS)

Climax Part RC-050 Mild Steel, Black Oxide Plating Rigid Coupling, 1/2 inch bore, 1 inch OD, 1 1/2 inch Length, 1/4-20 x 1/4 Set Screw

6.35 x 12.7mm 1/4" x 1/2" Flexible Shaft Coupling Rigid CNC Coupler D25mm L30mm

1/4 inch to 6mm Stainless Steel Set Screw Shaft Coupler

Climax Part RC-025-S-4H @ 90 T303 Stainless Steel Rigid Coupling, 1/4 inch bore, 1/2 inch OD, 3/4 inch Length, 10-32 x 1/8 Set Screw

Climax Metal RC-025-S Coupling, Stainless Steel Grade 303, 1/4" Bore , 1/2" OD, With 10-32 x 1/8 Set Screw

uniquegoods 6V 12V 24V 28V 3A 80W DC Motor Speed Controller (PWM) Speed Adjustable Reversible Switch 1203BB DC Motor Driver Reversing

ARQQ 5mm to 8mm Flexible Shaft Coupling Rigid Stepper Motor Wheel Coupler Connector Aluminum Casing with Screw +Hexagon Wrench(Pack of 5)