12 Pack U604ZZ Deep U Groove Ball Bearing Set 4x13x4mm Double Shielded Chrome Steel GCr15 ABEC 1 Low Noise For Hobbyists And DIYers Small Machinery Needs

12-Pack U604ZZ Deep Groove Ball Bearings 4x13x4mm Shielded
✔️ ID 4mm, OD 13mm, thickness 4mm; double shielded chrome steel

These compact U604ZZ bearings are small, deep groove ball bearings sized 4x13x4mm with shielded edges to lock in lubrication and keep debris out. They're perfect for hobbyists and DIY builders needing reliable, low-noise performance in compact machines.

✅ I.D. 4 mm, O.D. 13 mm, thickness 4 mm
✅ Chrome steel GCr15, long life and rigidity
✅ Double shielded ZZ, protects lubricant and reduces dirt ingress
✅ ABEC 1 tolerance (P0), low noise for general use
✅ Pack of 12 pieces for DIY projects and small machines

💡 What is a deep groove ball bearing used for in small hobby projects and compact machinery?

For handy setups where smooth, quiet motion is key. - Handy for hobby projects and compact gear - Handles radial loads with low friction - Shielded chrome steel design resists contaminants