Two customizable roller bearing supports that are part of a thrust stand that I built:

A pillow block style single support,
Rectangular support(s) with optional holes on top for shaft insertion (see the included image)

The attached roller-bearing-support.scad can be used standalone or can be included by other OpenSCAD files.

Default parameters:

STLs are dimensioned for a 22mm od x 8mm id x 7mm thickness roller skate bearings bought from amazon: uxcell 608-2RS Deep Groove Ball Bearing Double Sealed 180016, 8mm x 22mm x 7mm High Carbon Steel Z1 Bearings (Pack of 8)
https://www.amazon.com/uxcell-608-2RS-Groove-Bearing-Bearings/dp/B07FDWW9D9/ref=sr_1_2?dchild=1&keywords=uxcell+608-2RS+Deep+Groove+Ball+Bearing+Double+Sealed+180016%2C+8mm+x+22mm+x+7mm+High+Carbon+Steel+Z1+Bearings+%28Pack+of+8%29&qid=1610882258&s=industrial&sr=1-2

Screw holes in base are for #6 3/4" wood screws

Materials, print settings, printer, etc:

Sliced with Cura

Pillow block support thing: Inland PLA+ (dark blue), print temperature 215C, bed temperature 50C

Dual rectangular supports thing: 3D-Fuel Pro PLA (Luzbot green), print temperature 230C, bed temperature 45C

Customizers

Customizable variables include part selection and various dimensions.

Thingiverse customizer: the file roller-bearing-support-1f.scad is a version roller-bearing-support.scad with all of its include files inlined. It should work with the Thingiverse customizer. Unfortunately, the Thingiverse customizer isn't working for me right now.

OpenSCAD customizer: open either roller-bearing-support.scad or roller-bearing-support-1f.scad.