4Pcs 5mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors

Great little shaft collars with flanges. Dimensions were accurate and surface finish is good. They worked so well I got a second set.

Used these for a small robot. Handles a lot of torque and speed without issue.

I needed a flange for mounting a plastic fan unit that came with a flimsy flange molded in, that had failed. I dremelled out the old flange and added one of these metal flanges attaching it with screws and glue Bonus It comes with an allen wrench of the right size for the tiny set screws supplied

Would have given five stars, but once installed they were off just a bit had to flatten on lathe to run true. Well worth buying if not needing perfect true. Would buy again. Also would be nice if added at least two extra set screws.

Perfect fit to scale up the axil on small motors

Used these to make a couple of lure turners. Worked very well. Solid and seem durable. Great value

Exactly what I wanted

I received this item and was very pleased with purchase---however; I checked the package and found only THREE shaft locking screws instead of needed EIGHT--I noted that in my 5STAR review earlier----I have looked further and discovered a small tear in the plastic envelope---only three set screws---my daughter has since looked in the SHIPPING envelope and---found FIVE teeny locking screws deep in the corners of the SHIPPING envelope. So, I hollered before I really looked and owe the seller a 5 STAR complete review, good item, buyer jumped to wrong conclusion!