- Quality: ABEC-5
- 624ZZ Size: 4mm x 13mm x 5mm
- ID (inner diameter) Bore=4mm
- OD (outer diameter)=13mm
- Dynamic load rating Cr: 1,300 N
- Static load rating Cor: 490 N
- Grease Lubrication: 44,000 RPM
This is also know as the 624Z Ball Bearing. Which is also needed for most types of Reprap 3D printers.