10 Pack Shielded Fishing Reel Bearings 3x10x4 Deep Groove Miniature 623ZZ Set With Double Metal Shields For Dust And Dirt Protection Ideal For Freshwater And Saltwater Reels And Precise Smooth Operation

10-Pack Shielded 3x10x4 Fishing Reel Bearings 623ZZ
✔️ 10 pieces, 3x10x4 mm shielded deep groove bearings, 623ZZ set

These shielded deep groove ball bearings, a form of sealed ball bearing, are built for compact fishing reels and small mechanical assemblies, delivering smooth rotation while fending off dust and grime.

✅ Size: 3x10x4 mm (ID 3 mm, OD 10 mm, width 4 mm) - sealed ball bearing type
✅ Shielding: double metal ZZ shields protect internal grease and keep dirt out
✅ Pack: 10 bearings per order
✅ Dynamic load Cr: 640 N; Static load Co: 230 N
✅ Speed: up to 52,000 RPM grease-lubed for fast spins
✅ Equivalents: KOYO 623ZZ, NSK 623ZZ, NMB R-1030ZZ

💡 What is a shielded ball bearing used for in small gear and reels? Shielded bearings help keep lubricants in and contaminants out, making them handy for compact, moving parts.

- Handy for fishing reels, RC models, and tiny machinery with limited space - Shielded design protects bearings in dusty, damp environments - 3x10x4 mm size fits many compact pockets and retainer housings - High RPM capability supports smooth operation in light-duty applications