R166 ZZ Bearing, ID 3/16 inch x OD 3/8 inch x 1/8 inch Miniature Ball Bearing, Metal Shielded and Pre-Lubricated with Grease, 3/16 inch Precision Roller Bearing (10 Pack): Amazon.com: Industrial & Scientific
uxcell 606-2RS Deep Groove Ball Bearing 6mm x 17mm x 6mm Double Sealed High Carbon Steel Z1 Bearings 8pcs: Amazon.com: Industrial & Scientific