Product name:SPB-152120 bearing;Size:15x21x20mm;Mass:0.02kg;Temperature:-40~300℃;Material:Brass;Cage:None;Lubricating:Oil or Grease;Vibration:V V1 V2 V3;Clearance:C0 C2 C3 C4;Certificate:ISO9001-2008;Structure:Deep Groove;Type:BALL;Number of Row:Single