Full Ceramic Bearing 6904-2RS ZrO2 Si3N4 SRL Ball Bearing 20mm By 37mm By 9mm With Grease High Precision Ceramic Bearing For Industrial Use Featuring ZrO2 And Si3N4 Construction For Low Friction And Wear Resistance And Long Service Life
✔️ 20x37x9 mm full ceramic SRL bearing, single unit, -50 to 150 C
This 6904-2RS ZrO2/Si3n4 SRL full ceramic bearing combines silicon nitride balls with zirconium oxide races for high rigidity and long life. It’s a prime choice for precision machinery, robotics, medical devices, and high-temperature environments where low friction and noise matter.
✅ Dimensions: 20x37x9 mm (ID 20 mm, OD 37 mm, width 9 mm)
✅ Material: Si3n4 silicon nitride ceramic balls; inner/outer races ZrO2 ceramic
✅ Lubrication: SRL grease; excellent low-noise performance and life
✅ Seal: 2RS shields on both sides for protection
✅ Temp range: -50 to 150 C (-58 to 302 F)
✅ Quantity: 1 bearing in this pack
💡 What is a ceramic bearing used for in high-precision machinery? This handy option blends strength and stability for tough conditions. - Useful in precision robots and medical devices with clean-room needs - Handy for high-speed spindles and automation where low friction helps - Great for high-temperature environments where grease holds up - Non-magnetic, corrosion-resistant performance