SR188-2RS Stainless Steel Ceramic Si3N4 ABEC-5 Ball Bearing 1/4 x 1/2 x 3/16 inch sealed deep groove bearing with silicon nitride ceramic balls rubber seals grease lubrication and precision performance for smooth high speed use

SR188-2RS Stainless Steel Ceramic Ball Bearing ABEC-5
✔️ Si3N4 Sealed Deep Groove Bearing 1/4 x 1/2 x 3/16 inch

This stainless steel ceramic hybrid ball bearing is built for smooth, clean rotation in compact mechanical systems. With ceramic silicon nitride balls and rubber seals on both sides, it’s a solid choice for precision tools, small motors, hobby builds, and equipment that needs low friction with good protection.

✅ Pack size: 1 bearing
✅ Bearing type: deep groove ball bearing
✅ Construction: stainless steel races with ceramic Si3N4 balls
✅ Precision grade: ABEC-5
✅ Closures: double rubber seals 2RS
✅ Pre-lubricated with grease and ready to install
✅ Designed for smooth rotation and reduced wear
✅ Suitable for high-speed and precision applications

Dimensions
(All dimensions listed are inch-based only)

Inner diameter: 1/4 inch
Outer diameter: 1/2 inch
Width: 3/16 inch

Load ratings

Dynamic load rating: 186 lbs
Static load rating: 84 lbs

💡 Why are ABEC-5 stainless steel ceramic hybrid ball bearings used in precision equipment?
ABEC-5 hybrid ceramic bearings are designed to balance accuracy, speed capability, and durability in compact systems.

• Tighter tolerances improve running accuracy and consistency

• Ceramic Si3N4 balls reduce friction and heat generation

• Stainless steel races offer corrosion resistance and strength

• Rubber seals help retain grease and block dust and debris

This bearing delivers clean, reliable performance in a small footprint, making it a handy upgrade or replacement for precision-driven applications.