Sealed Hybrid Ceramic Ball Bearing With ZrO2 Ceramic Balls Double Rubber Seals For Dust Protection Pre Lubricated With Oil Sized Three Sixteenth By Three Eighths By One Eighth Inch For Precision Machinery And High Speed Applications

Single-pack sealed ceramic bearing 3/16 x 3/8 x 1/8 in
✔️ ID 3/16 in, OD 3/8 in, width 1/8 in, sealed ceramic

R166-2RS Sealed Hybrid Ceramic Bearing is a compact radial bearing built for precise, smooth motion in small machines, automation setups, robotics projects, and hobby builds. It uses zirconia ceramic balls with chrome steel races and dual rubber seals to keep dust out while retaining lubrication. This package ships as a single bearing for easy swapping in tight spaces.

✅ Size: 3/16" ID × 3/8" OD × 1/8" width (4.76 × 9.53 × 3.18 mm)
✅ Type: Sealed hybrid ceramic bearing with zirconia ceramic balls and chrome steel races
✅ Seals & Lubrication: Double rubber seals RS; pre-lubricated with oil
✅ Material & Cage: Zirconia ceramic balls; nylon cage
✅ Pack size: 1 bearing

💡 What is a sealed ceramic bearing used for in machinery?

In a nutshell, this kind of bearing is a handy choice for tight spaces where low friction and protection from dust matter. - ideal for compact automation and robotics assemblies - supports smooth operation in CNC, printers, and small drives - reduces wear and heat with ceramic balls and a stable nylon cage - helps extend life in dusty or oily environments