Connecting motor axle to another shaft

Hello everyone. I have to mesh a dc motor’s shaft to a worm gear assembly’s shaft which is thicker. I have no idea how to do it. Please help me out.

Normally this is done with either a sleeve bushing (which makes a small shaft larger) or adding the correct sized shaft to the worm gear and using a shaft coupler. Sounds like you need a coupler (which come in many input / output diameters.

Thank you! I managed to do it using a couplerby modifying the hole diameter.