6904ZZ Koyo Bearing Double Shielded Deep Groove Ball Bearing With 20 mm ID, 37 mm OD, 9 mm Width Delivers Smooth Low Friction Operation And Durable Steel Cage For Reliable Precision Machinery

6904ZZ KOYO Deep Groove Shielded Ball Bearing 20x37x9mm
✔️ 20 mm bore, 37 mm OD, 9 mm width, single bearing, shielded

This compact, sealed double-shielded deep groove ball bearing from KOYO is designed for reliable radial support in small machinery. Use it in hobby projects, 3D printers, printers, and compact gearboxes where precise, low-friction rotation matters.

✅ Inner diameter 20 mm (0.79 in)
✅ Outer diameter 37 mm (1.46 in)
✅ Width 9 mm (0.35 in)
✅ Double shielded to block dust and debris
✅ Deep groove design handles radial loads with light axial capability
✅ C0 internal clearance, round bore single bearing

💡 What is a sealed double shielded deep groove ball bearing used for in common machinery? These bearings are handy for keeping rotation smooth in small mechanical systems. - Smooth rotation for radial loads in compact machinery - Handy in hobby projects, printers, and small motors - Shielding protects against dust and contaminants - Maintains performance with low friction and C0 clearance