10 Pack – MR693-ZZ (3 x 8 x 4 mm) Ball Bearing

Amazon.com Price: $12.57 (as of 24/03/2021 01:50 PST- Details)

Inside Diameter: 3, mm Outside Diamater: 8, mm Width: 4 mm
Bearing Material: Chrome Steel, Ball Material: Chrome Steel, ABEC#1/ISOP0
Enclosure: Chrome Steel, Lube: Kyodo PS2 Grease