Sealed Ball Bearing 20x37x9mm AB Deep Groove Chrome Steel 52100 For Precision Machinery, 6904-2RS AB Sealed Ball Bearing With Dual Seals, Durable Chrome Steel Construction, Ideal For Automotive, Industrial Equipment And Robotics

Single-pack 6904-2RS sealed ball bearing 20x37x9 mm
✔️ 20x37x9 mm sealed ball bearing, chrome steel, pre-greased

This sealed deep groove ball bearing is designed for smooth rotation in a wide range of machinery and hobby projects. It uses 52100 chrome steel for exceptional durability and has two rubber seals (RS) to keep grease in and contaminants out.

✅ Dimensions: 20x37x9 mm
✅ Inner diameter: 20 mm; Outer diameter: 37 mm; Width: 9 mm
✅ Material: Chrome steel 52100
✅ Seals: Rubber seals AB for grease retention and dirt protection
✅ Lubrication: Pre-lubricated with grease for immediate use

💡 What is a sealed ball bearing used for in industrial equipment and hobby projects?

They provide smooth rotation for rotating parts while keeping lubrication in and dirt out. Handy for many machines and DIY builds.

- Low-friction radial support for rotating parts - Sealed design keeps grease in and dirt out - Chrome steel 52100 offers durability and wear resistance - Sized for common 20x37x9 mm mounts