This is the Team Corally Ball Bearing - Abec 3 - 8x16x5 - 2 pcs [C-3611-3-08-16-05]

Bearing - Dimensions
ID = Inner Dia. ø (mm): 8
OD = Outer Dia. ø (mm): 16
WI = Width / Thickness (mm): 5

Bearing - Specs: Industrial Code
Bearing Type: Radial Bearing
Grade - Precision: ABEC 3
Material: Chrome Steel (Standard)
Seals: Rubber Shielded