Vileda spin mop gear for 12mm bearing

thingiverse

The one way bearing of my Vileda mop broke, I ordered new bearing but they were too small so I decided to 3D print a new gear that can fit them. The Bearing are called HF0812, you can get very cheap one from aliexpress, I paid 4$ for 5, shipping included and they look sturdier then the original. Make sure you insert the bearing in the correct way, there's an arrow on the bearing showing rotation direction, looking at the gear like in the picture, the arrow have to point in clockwise. I applied some heat with a heat gun to prevent the PLA from cracking when pressing with the vice, but you really don't need to heat much. Also you have to insert the bearing all the way in, if the bearing is not all the way in it will keep the gear higher in the assembly and will prevent smooth rotation.