Featuring DUROTECT® B coating for anti-corrosion protection, FAG Black Series Ball Bearing Units are suitable for challenging operation conditions. Two self-retaining set screws that are offset by 120° securely locate inner ring on shaft. Available with inch and metric bore diameters, bearings have cast iron housing, black oxide coated rings, 1-piece seal with molded seal lip, and polyamide cage. Units come pre-lubricated and can be re-lubricated via lubrication nipple.