The 3001-2RS is a double row angular contact ball bearing, with two rows of balls set at a contact angle to carry combined radial and axial loads from both directions. Bore diameter is 12.0 mm, outside diameter 28.0 mm, width 12.0 mm, and net mass is 0.033 kg. The cage is a plastic TVH design, and the limiting speed is rated at 15800 1/min. Seals are fitted on both sides (2RS), retaining grease inside the bearing and keeping contaminants out without need for external sealing. The plastic TVH cage lowers running friction and mass, supporting the stated limiting speed while guiding the balls evenly under combined axial and radial loading in the compact 12.0 mm width.