Uxcell a14041100ux0429 4 Pcs 6003RS 35mm x 17mm x 10mm Rubber Sealed Single Row Deep Groove Ball Bearing for Electric Motor (Pack of 4) Product Name: Deep Groove Ball Bearing; Type: 6003RS Structure(Row Number): Single: Steel, Rubber Outer Diameter: 35mm/ 1.37";Inner Diameter: 17mm/ 0.67" Thickness: 10mm/ 0.39";Color: Silver Tone, Black Weight: 168g;Package Content: 3 x Deep Groove Ball Bearings