7004CYDUP4BNLS Nachi Angular Abec-7 Ball Bearing 20mm x 42mm x 12mm 15 Contact Angle Polyamide resin cage Made in Japan 7004CYDUP4BNLS Nachi Angular Ball Bearings, 15 Contact Angle, Polyamide resin cage, Abec-7 Made in Japan, 7004CYDUP4BNLS inner diameter is 320mm, 7004CYDUP4BNLS outer diameter is 42mm, 7004CYDUP4BNLS width is 12mm.