Single lip contact seal with black oxide bearing racesHigh quality solid base designed investment cast passivated 316 stainless steel casting providing the highest amount corrosion resistance currently available for stainless steel housings.Unique land riding retainer design provides superior pocket clearance that allows for 360° grease circulation around the rolling elements resulting in better retained and utilized lubrication.Unique land riding retainer design provides superior pocket clearance that allows for 360° grease circulation around the rolling elements resulting in better retained and utilized lubrication.