The Nachi 6309-2NSE9CM is a high-quality deep groove ball bearing designed for various industrial applications requiring reliable performance. This genuine Nachi bearing features a 45 mm inner diameter, 100 mm outer diameter, and 25 mm width. The '2NSE9' designation indicates that it is equipped with two contact rubber seals (non-contact type) on both sides, providing excellent protection against dust and moisture while retaining lubricant. The 'CM' suffix denotes a C3 radial internal clearance, which is greater than normal clearance, suitable for applications involving high speeds, temperature differences, or press fits. Nachi bearings are known for their precision and durability, ensuring smooth operation and extended service life.