Metric BA oil seals, commonly known as Simmerring® BA radial shaft seals, are double-lip sealing solutions designed to retain lubricants while blocking contaminants in rotating equipment. The BA profile features a primary sealing lip with a garter spring for consistent shaft contact and a secondary dust lip for added protection in dirty environments. These seals are widely used in gearboxes, motors, pumps, and industrial machinery where reliability and long service life matter. Customers benefit from reduced leakage, better equipment protection, and fewer maintenance intervals. At The O-Ring Store LLC, we focus on making it easy to get the right seal with accurate sizing, consistent quality, and dependable availability so your euipment stays running without downtime.