7211CYDUP4 Nachi Angular Contact Abec-7 Ball Bearing 55mm x 100mm x 21mm Made in Japan 7211CYDUP4 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.