What is this?
The Brass Shaft Coupler Coupling Connector is made of pure brass, sturdy, reliable and strictly functional. Used for connecting the motor shaft and the hexagon wheel of the robot, cars, and other models.Suitable for model shaft connection, perfect accessories for RC Model motor, etc.

What will I get?
The size of flexible motor bearing coupling is here:
Hole Diameter: 4mm to 5mm/0.16 to 0.2 inch
Outer Diameter: 9mm/0.35 inch
Height: 20mm/0.79 inch
Material: Brass
Package contains: 8pcs Brass Shaft Coupling with 32pcs Screws and 1pcs Hex Wrench

Are there any advantages of the product?
The brass bearing coupling characterized by high temperature resistance, corrosion resistance and oil resistance, long service life.make your shaft more stable, easy to install and replace.

How to use it?
Simple to install and easy to use.Mainly used to connect two optical shafts with different diameters, or to connect motors and optical shafts, or to connect shafts of different diameters.

What should I notice?
Please select the appropriate size before purchase