Sealed Ball Bearing 45x68x12mm in Chrome Steel With Rubber Seals for Dust Protection and Self Lubrication, High Strength 6909 Series Bearing Capable of Up To 5500 RPM, Ideal For Industrial Machinery, Motors, and DIY Projects

Single 6909DU sealed ball bearing 45x68x12mm high-speed
✔️ sealed ball bearing, chrome steel, pre-greased, 45x68x12mm

The 6909DU is a sealed double-sided ball bearing designed for smooth, precise rotation in machinery, conveyors, robotics, and automation equipment. It ships greased and ready for quick drop-in use, with rubber seals to keep dust and contaminants out.

✅ Size: 45x68x12 mm bore outer width
✅ Material: Chrome steel for durability and long life
✅ Seals: Double rubber seals protect against dust and contamination
✅ Lubrication: Pre-greased and ready to install
✅ Dynamic load rating Cr: 14,100 N; Static load rating Cor: 10,900 N
✅ Max speed: up to 5,500 rpm (grease-lubed up to ~5,600 rpm)

💡 What is a sealed ball bearing used for in mechanical systems? This handy part keeps rotating parts smooth and reliable in various machines. - Sealed ball bearings handle radial loads in motors, conveyors, and automation gear - Rubber seals protect against dust and contamination, extending bearing life - Pre-greased designs simplify installation and reduce maintenance