634-2RZ Sealed Deep Groove Ball Bearing, Single Row Radial Bearing, 4x16x5mm, 4mm Inner Diameter, 16mm Outer Diameter, 5mm Width, Sealed Shielded For Dust Protection, High Precision, Ideal For Small Machinery And Hobby Applications

Premium 634-2RZ Sealed Ball Bearing 4x16x5 Deep Groove, Single Bearing
✔️ 4mm ID x 16mm OD x 5mm width (0.157 x 0.630 x 0.197), single

These sealed deep groove ball bearings are compact radial bearings designed for smooth rotation in small machinery and DIY kits. The 4x16x5 size fits shafts and axles in hobby projects, 3D printers, RC gear, and light conveyors.

✅ 4 mm ID x 16 mm OD x 5 mm width (4x16x5)
✅ Deep groove, single row radial bearing
✅ Sealed on both sides (RZ) for contamination protection
✅ Dynamic load rating 1.11 kN; static load 0.38 kN
✅ Pack: 1 bearing (single unit)

💡 What is a sealed ball bearing used for in compact machinery and DIY projects? A handy overview of typical use cases helps you decide if this bearing fits your setup. - Use-case: supports radial loads in tight spaces - Sealed design keeps lubricant in and contaminants out - Common size 4x16x5 is popular in hobby electronics and light machinery - Great for DIY rotaries, 3D printers, RC gears