Yet another peristaltic pump

To use together with a geared Nema17 stepper motor with a flanged 8mm output shaft like this one http://2.wlimg.com/product_images/bc-full/dir_37/1091420/geared-stepper-motor-1392929.jpg

I am using 10mm OD surgical tubing.

Action video https://www.youtube.com/watch?v=2H4FfgKZpxs

Bearings are 688 type and are fixed with M8x12mm screws. https://www.vxb.com/MR688-2RS-Double-Bore-Dia-8mm-OD-16mm-Width-5mm-p/mr688-2rs.htm