This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/7t0VmBQPj1k
This is my 2nd version of a bed stabilizer. the tiny hole in the middle is for a small nail that locks spring in place. Bearing holders came from Adonirams design I found on Thingiverse you need 2 of them . You will also need 2 5mm x 11mm 2 mm bearings. ( I got from BocaBearing.com).