【4mm inner diameter 10-13mm outer diameter small size bearings】624ZZ 604ZZ 694ZZ MR104ZZ

Since I couldn't find bearings of the right size, I decided to make my own. After several versions of testing, this relatively stable version was finally confirmed

Testing showed that 0.2 layer height causes sticking,please make sure to use 0.12 layer height for printing

Current bearing models available:

624ZZ inner 4 outer 13 thickness 5

604ZZ inner 4 outer 12 thickness 4

694ZZ inner 4 outer 11 thickness 4

MR104ZZ inner 4 outer 10 thickness 4

Pre-arranged and printable via phone

2026.3.6 print profile updated, higher printing fault tolerance

PS. If it doesn't roll smoothly, you can press both sides of the inner ring of the bearing and roll it a few times to make it smooth (current testing shows MR104ZZ inner 4 outer 10 thickness 4 has the highest chance of sticking)