uxcell 10 Pcs 624ZZ Single Row Deep Groove Ball Bearing 13mm x 4mm x 5mm Product Name : Deep Groove Ball Bearing;Type : 624ZZ Materal : Steel, Metal;Outer Diameter : 13mm/0.512" Inner Diameter : 4mm/0.157";Thickness : 5mm/0.197" Color : Silver Tone;Weight : 32g Package Content : 10 x Deep Groove Ball Bearing