XRAY has released Ball-Bearing MR85ZZ 5x8x2.5 2 under Metal Bearings category
Top-notch ball-bearings ID x OD x depth (mm) = 5x8x2.5mm. Band of 2 pieces.
These ball-bearings are degreased and carefully oiled with AeroShell Fluid 12 oil for maximum smoothness, endurance, greatest tolerance and optimum performance.