Donepart 1" ID x 2" OD Bearing Garage Door Torsion Spring Center Bearings Deep Groove Ball Bearings with Snap Ring, 2 Pcs: Amazon.com: Industrial & Scientific
Kugellager 30 x 10 x 9 mm 6200 RS Rillenkugellager Lager Metallabschirmung : Amazon.de: Baumarkt
10PCS 6200-2RS Double Rubber Sealed 10 x 30 x 9 mm Steel Deep Groove Ball Bearing for 10 mm Shaft / Rod Projects/Mechanical Equipment, Electric Instruments, Toys : Amazon.de: DIY & Tools