Ceramic Si3N4 Sealed Ball Bearing B539-2RS With SRL Grease 3/4 Inch By 1-7/8 Inch By 9/32 Inch Single Row Precision Bearing For Smooth Low-Friction Motion Ideal For Precision Machinery And Industrial Use

Ceramic Si3N4 Sealed Ball Bearing 3/4 x 1-7/8 x 9/32 in
✔️ Sealed 2RS; SRL grease, size 0.75 x 1.875 x 0.281 in

This is a high-precision ceramic ball bearing designed for tight-tolerance applications. It’s ideal in robotics, CNC, automation, and gear trains where low friction and long life matter. The 2RS seal keeps out dust and retains lubricant for smoother operation.

✅ Size: 3/4" x 1 7/8" x 9/32" (19.05 mm x 47.63 mm x 7.14 mm)
✅ Material: ceramic Si3N4 balls in steel races
✅ Sealing: double seal 2RS, SRL grease pre-lubricated
✅ Load ratings: Radial 3750 lbf, Thrust 1700 lbf
✅ Pack: 1 bearing (single unit)

💡 What is a ceramic sealed ball bearing used for in common machinery and automation setups?

These bearings are handy for precise motion, long life, and low friction in a range of machine tools and automation systems.

• Low friction ceramic Si3N4 balls reduce heat and wear
• Sealed 2RS keeps lubricant in and contaminants out
• Rigid construction handles steady loads in robotics and CNC
• Easy retrofit into standard bearing housings and assemblies