Kugellager 21 x 12 x 5 mm 6801 ZZ = 2Z Rillenkugellager Lager Metallabschirmung : Amazon.de: Gewerbe, Industrie & Wissenschaft
R188-ZZ Bearing 1/4 Inch x 1/2 Inch x 3/16 Inch Both Sides Metal Shielded and Pre-Lubricated with Grease Radial Miniature Ball Bearing: Amazon.com: Industrial & Scientific