Lubricate rollers through a hole and groove in the inner ring. Crowned rollers have a slight curve, which is invisible to the naked eye, to stay centered on surfaces that are not perfectly aligned and/or not perfectly flat. Rollers with seal have end seals to protect rolling elements from dirt and contamination.

Crowned rollers have a slight curve, which is invisible to the naked eye, to stay centered on surfaces that are not perfectly aligned and/or not perfectly flat. Rollers with seal have end seals to protect rolling elements from dirt and contamination. For technical drawings and 3-D models, click on a part number.