This is a 30x62x10 bearing.
The bearing use POM balls (Amazon, Aliexpress, ...).
Use the chain "solid plastic pom ball" to search on internet.
See the pictures
Printer Brand:Prusa
Printer: I3 MK3S
Rafts:No
Supports: No
Resolution:0,15mm
Infill: 30%
Filament: Giantarm PETG Black & Sliver
The author marked this model as their own original creation. Imported from Thingiverse.