V groove bearing pully

Parts:
Pully support x1 (printed part)
V groove wheel x1 (printed part)
623Z bearing x1 (OD 10mm, ID 3 mm)
M3x15 bolt x1
M3 nut x2
M3 washer x2

Assembly:

The inner diameter of V groove wheel is set 4.8 mm to press fit the bearing. I used press fit technique. To press fit the bearing into the wheel, heat up the bearing for three to four seconds using a portable gas torch or lighter. Then push the bearing into the hole, press it by C clamp or bench vise.

To use M3 set screw, ch