PMC offers a variety of polymeric bearings, all manufactured from durable MaxGlyde© polymeric materials that offer wear and significant noise reduction advantages over comparable metal products.Many of these components are available in food grade materials and are self lubricating. Physical dimensions identical to their metal counterparts. -Resists fungal and bacterial growth. -FDA, USDA, HACCP and NSF compliant. -Corrosion, chemical, wear and moisture resistant. -Self Lubricating.