High Precision Ball Bearing BNH011TU Nachi High Speed Angular Spindle Ball Bearing 15 degrees Contact Angle Abec-7 55mm x 90mm x 18mm Made in Japan BNH011TU Nachi High Speed Angular Spindle Bearing, Ball Bearing is Super precision Angular with 15 degrees contact angle and Phenolic cage, bearing is ABEC-7 quality and made in Japan.