R188ZZ Double Shielded Deep Groove Ball Bearings Chrome Steel One Quarter Inch Bore One Half Inch Outer Diameter Three Sixteenth Inch Thickness Z2 Quiet ABEC One P Zero High Load Industrial Skateboard Bearings Ten Pack

Deep Groove Ball Bearing R188ZZ 1/4x1/2x3/16, 10pcs pack
✔️ 10pcs pack - R188ZZ 1/4x1/2x3/16, double shielded, chrome steel

These compact R188ZZ deep groove ball bearings are shielded on both sides to keep lubrication in, making them ideal for skate wheel hubs, small machinery, and hobby robotics. They’re built from chrome steel for durability under moderate loads.

✅ Size: I.D. 1/4 in (6.35 mm), O.D. 1/2 in (12.7 mm), T 3/16 in (4.76 mm)
✅ Shielding: double-sided 2Z shields seal lubricant and keep debris out
✅ Material: chrome steel GCr15 for strength and long wear under load
✅ Tolerance: ABEC 1 (P0); static load 80 N, dynamic load 207 N
✅ Package: 10 bearings per pack, ready for multiple projects

💡 What is a common use case for small deep groove bearings in hobby projects?

They’re handy for compact motion in tight spaces and support smooth rotation in lightweight devices.

- ideal for inline skate housings and small robot joints - great for hobby CNC or 3D printer axes - lightweight, durable support for small pulleys and sliders