NTN Bearing 6303LUA Single Row Deep Groove Radial Ball Bearing, Polyacrylic, Normal Clearance, Steel Cage, 17 mm Bore ID, 47 mm OD, 14 mm Width, Single Seal

Great product exactly what we need

I purchase this part number at other stores quite often and was looking for a different place to buy so I thought I would check one out. When it arrived it is not the same as the ones I purchase elsewhere. The description is accurate after review but I was expecting the bearing to be a sealed unit on both sides. Not a bad product and the number on the bearing is the same as the bearings I purchase from the bearing supply house but they are not the same.

Just as advertised

Installed two of them on engine pulley, after 5 minutes of idling they are become extremely noisy.