Constant Force Joints

A New Use for 608 Bearings

This joint allows robust rotational motion, with only a bolt, ball bearing & two washers per joint. They are cheap to make and forgiving to build. Its perfect if you require joint which can retain its position at any angle.

Typically in this application, you would use a Thrust Bearing, but I've developed a way to use Deep Groove Ball Bearings because 608 Skate Bearings are dirt cheap, <$0.50/bearing, and readily available.

This Phone Stand here is just one of possible use for the Constant Force Joint. It's a design element I find myself using regularly so I hope this can serve as a comprehensive look at how they work and how to use them.

I've put together an in depth look for you below, enjoy!

files links:

You can download the Constant Force Joint Washer Here

You can download the Phone Stand Part Kit Here

You can download the Phone Clip Here (sorry it only fits an LG G3 at the moment.)