NACHI 6006 2NSE9 Bearings 30x55x13mm, Made in Japan, Deep Groove Ball Bearings. 6006 2NSE9 Deep groove Nachi bearing - high quality 2 side rubber seals Dimension: d (Inside) Bore 30 mm D (Outside) 55 mm B (Width) 13 mm. This Nachi 6006 2NSE9 ball bearing is made of chrome bearing steel and has 2 rubber seals. It has a 30 mm inside diameter, a 55 mm outside diameter, and a 13 mm depth. The bearing has deep groove geometry for supporting both radial and axial loads and high speeds. The races are made of chrome bearing steel for durability and resistance to deformity under heavy loads. The ball is made of chrome bearing steel for strength and resistance to wear and deformation. The static load rating is 15,300 newtons and the dynamic load rating is 25,700 newtons. A steel cage spaces the balls for even load distribution and prevents contact to reduce friction, vibration, and noise. The maximum speed with grease lubrication is 9,800 revolutions per minute (rpm). This deep groove ball bearing is used in applications such as electric motors, compressors, and material handling equipment, among others.