Precision Rolling Bearing 7004CYP4 Nachi Angular Ball Bearing 15 degrees Contact Angle Polyamide resin cage Abec-7 20mm x 42mm x 12mm Made in Japan 7004CYP4 Nachi Angular Ball Bearing, Bearing is Precision Rolling, bearing is 15 degrees Contact Angle, Polyamide resin cage and Abec-7, Made in Japan, inner diameter is 20mm, outer diameter is 42mm and width is 12mm.