Carries radial loads and moderate axial loads through a single row of balls running in deep grooves, with a bore of 40.0 mm, outside diameter of 80.0 mm and width of 18.0 mm. The bearing weighs 355.41 g and is rated for a limiting speed of 5000 1/min. Both sides are fitted with seals, and the outer ring carries a ring groove for a locating snap ring, with the cage made of steel sheet metal (JN). Radial internal clearance is CN (Group N). The seals on both sides keep grease inside and stop contaminants from entering, so the bearing is grease-lubricated for its working life without needing external relubrication. The ring groove allows straightforward axial positioning in the housing using a matching snap ring, which simplifies mounting where the outer ring must be located without a shoulder. Standard CN internal clearance suits normal fit and temperature conditions without added preload requirements.