WZZG 4pcs/lot 7304AC ACM 20x52x15 mm angular contact bearings high quality bearings
WZZG angular contact bearings 7304AC 7304ACM
Model Number: 7304
7304AC : 20*52*15 mm ( Bakelite retainer, 25° contact angle )
7304ACM : 20*52*15 mm ( Copper retainer, 25° contact angle )
Number of rolling body columns: single column
Material: bearing steel