High Precision Ball Bearings 7200CYDUP4 Nachi Angular Ball Bearings 15 degrees Contact Angle Abec-7 10mm x 30mm x 9mm Made in Japan 7200CYDUP4 Nachi high precision Angular pair of Ball Bearings with 15 degrees contact angle and Polyamide resin cage, pair of ball bearings is 2 duplex bearings, bearings are ABEC-7 (P4) quality and made in Japan.