Ball Bearing Nut for TR8-2-D2 Screw

The nut with flanged ball bearings for the 8mm trapezoidal linear screw (picth 2mm lead 2mm).
I don't feel a backlash with it.
Body diameter: 28mm +0.4 -0.1
__________________
MF104ZZ (4x10(F11,5)x4mm) ball bearing 3pcs.
Pan head screw M4x12 3pcs.
Hexagon nut M4 3pcs.
Mounting holes M3
__________________
F623ZZ (3x10(F11,5)x4mm) ball bearing 3pcs.
Pan head screw M3x12 3pcs.
Hexagon nut M3 3pcs.
Mounting holes M3
__________________
CAD: https://grabcad.com/library/ball-bearing-nut-f