Ceramic Si3N4 Flanged Ball Bearing 3/16 By 5/16 By 1/8 Inches Sealed 2RS Double Shielded For Dust Protection And Smooth Precision Motion In Miniature Machinery Ideal For Robotics CNC 3D Printers And High Accuracy Instrumentation

Single sealed ceramic bearing SFR156-2RS 3/16x5/16x1/8
✔️ 4.76 mm bore / 7.94 mm od / 3.18 mm width; flanged

This compact sealed ball bearing uses ceramic Si3N4 balls and stainless steel races, designed for precise, low-friction rotation in compact assemblies such as robotics, motors, conveyors, and small linear motion units.

✅ Inner diameter: 3/16 in (4.76 mm)
✅ Outer diameter: 5/16 in (7.94 mm)
✅ Width: 1/8 in (3.18 mm)
✅ Flanged, double sealed RS seals, pre-lubricated
✅ Material: Si3N4 ceramic balls, stainless steel race

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

A handy overview covers typical roles in small systems.

• Handy for precise, low-friction rotation in small motors and drives
• Great in dust-prone environments thanks to dual RS seals
• Ceramic Si3N4 balls resist wear and corrosion for longer life
• Ideal for compact robotics, hobby machines, and linear slides