2020 profile 608ZZ rotating mount for 8mm linear slide bushing

This is a design to give rotating movement to a linear slide bushing.

Parts required to build:
4x - M4 x 16mm allen bolts (to mount the printed part on the slide bushing)
1x - M4 x 25mm or 30mm bolt (for inner mounting of the ball bearing)
1x - M4 washer (for center of the ball bearing)
2x - M3 bolt (for mounting on 2020 profile)
2x - M3 washers
1x - 608ZZ ball bearing


I got the bearing slide bushing from banggood (https://www.banggood.com/SC8UU-8mm-Aluminum-Linear-Motion-Ball-Be