The SKF 3304A-2RS1TN9/MT33 is a genuine double row angular contact ball bearing, designed for applications requiring high precision and rigidity. This sealed bearing features a contact angle of 30 degrees, allowing it to accommodate radial and axial loads in both directions. The 'A' designation indicates an optimized internal design, while '2RS1' signifies two contact seals (NBR) on both sides, providing protection against contaminants and retaining lubricant. The 'TN9' refers to a glass fibre reinforced polyamide 66 cage, and 'MT33' denotes a specific grease fill for a wide operating temperature range. It has a bore diameter of 20 mm, an outer diameter of 52 mm, and a width of 22.2 mm.