S61801-2RS Hybrid Ceramic Bearing ABEC-5 - Stainless Steel - 12x21x5mm

S61801-2RS Hybrid Ceramic Ball Bearing – ABEC-5 Precision
✔️ 12mm x 21mm x 5mm – Stainless Steel Rings + Ceramic Balls – Double Sealed

The S61801-2RS is a premium hybrid ceramic bearing built with stainless steel rings and ultra-light ceramic balls. This ABEC-5 precision bearing is engineered for quiet, high-speed performance and long-lasting reliability - ideal for robotics, 3D printers, and high-efficiency motors.

✅ Inner Diameter (ID): 12mm
✅ Outer Diameter (OD): 21mm
✅ Width: 5mm
✅ Type: Deep groove ball bearing
✅ Material: Stainless steel rings
✅ Balls: Solid Si3N4 ceramic balls
✅ Closures: Double rubber seals (2RS)
✅ Quality: ABEC-5
✅ Lubrication: Pre-lubricated with grease
✅ Quantity: 1 bearing
✅ Interchangeable with: 6801-2RS1, 6801RS1

💡 Why choose a hybrid ceramic bearing over all-steel bearings?
Ceramic balls are lighter, harder, and smoother than steel balls, meaning they spin faster with less friction and generate less heat - extending both bearing life and equipment performance in demanding environments.

Upgrade to the S61801-2RS for a cooler, smoother, and more efficient ride - your machines will thank you!