7205CYDUP4 Nachi Angular Contact Bearing 25x52x15mm ABEC-7 Bearing 40mm width the 6014ZZENR inner diameter is

the 6014ZZENR inner diameter is 70mm

Designed for demanding applications like RC engines

NJ311 width is 29mm

7207CYDUP4 Nachi Angular Ball Bearings

7205CYDUP4 Nachi Angular Contact Bearing 25x52x15mm ABEC-7 Bearing 40mm width the 6014ZZENR inner diameter is7205CYDUP4 Nachi Angular Ball Bearings High Precision Ball Bearings 25mm x 52mm x 15mm Abec 7 Made in Japan 7205CYDUP4 Nachi high precision Angular pair of Ball Bearings with 15 degrees contact angle and Polyamide resin cage, pair of ball bearings (2 duplex bearings), ABEC 7 (P4) quality and made in Japan, inner diameter is 25mm, outer diameter is 52mm and, width is 15mm. 7205CYDUP4 Angular Ball Bearings Nachi Angular Ball Bearings Cage: Polyamide