6004-2RS Deep Groove Ball Bearings With 20mm Inner Diameter, 42mm Outer Diameter, And 12mm Width, Double Rubber Sealed, Pre-Lubricated Chrome Steel Bearings, Low Noise Z2 ABEC 1 Tolerance, High Speed Performance, 4 Pack HiPicco

6004-2RS Deep Groove Bearings: 20x42x12 sealed, 4-pack
✔️ 20 mm ID, 42 mm OD, 12 mm wide, double rubber seals, pre-lubed

These 6004-2RS deep groove ball bearings are precision chrome steel bearings designed to handle both radial and axial loads at high speeds. With double rubber seals and pre-lubrication, they're built for low maintenance in robotics, small spindles, power tools, and automation projects.

✅ Inner diameter 20 mm, outer diameter 42 mm, width 12 mm
✅ Chrome steel (GCr15), durable and load-ready
✅ Double rubber seals on both sides, grease-filled for instant use
✅ Low-noise ABEC 1 tolerance, high-speed performance

💡 What is a sealed ball bearing used for in small machinery and robotics?

These handy bearings are designed to support shafts at high speed with minimal maintenance. - Seals keep lubricant in and dust out
- Handy for robotics, hobby CNC, small tools, and power equipment
- ABEC 1 tolerance ensures smooth, quiet operation under load