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
SKF RMS 8 Radial Bearing, Single Row, Deep Groove Design, ABEC 1 Precision, Open, Normal Clearance, Standard Cage, 1" Bore, 2-1/2" OD, 3/4" Width: Deep Groove Ball Bearings: Amazon.com: Industrial & Scientific
Amazon.com: Rollerex 20-Pack, 608ZZ ABEC-1 Wheel Bearings (for Any Products Using Roller Skate Wheels) (Carbon Steel) - for Inline, Rollerskate, Skateboard, RipStik & More : Sports & Outdoors