Pack Of Ten Top Tier 6704 Zz Metal Shielded Bearings Built Tough With Premium Chrome Steel Measuring Twenty Twenty Seven By Four Seriously Solid For Rc Builds And Bike Repairs

Pack of 10 6704-ZZ Chrome Steel Ball Bearings
✔️ 20mm bore 27mm OD 4mm width precision ground design

This pack delivers ten precision ground chrome steel bearings designed for smooth rotation on bicycle hubs and radio control drivetrains. The slim cross section packs full load capacity into tight frames without adding bulk to your build.

✅ Double metal seals guard against dust and moisture ingress
✅ Hardened chrome raceways extend service life under vibration
✅ Zero play tolerance keeps steering responsive at speed
✅ Handy slip fit mount saves time when retrofitting worn motor posts

💡 How do double metal shielded radial bearings improve shaft longevity?

You grab these units to keep parts spinning easy while blocking grit.

- Press fits lock tight onto drive shafts under heavy torque loads

- Rubber backed metal contacts trap lubricant inside the ball complement

- Predictable wear patterns prevent seizing during prolonged machine operation

- Cheap replacements restore original tolerances in aging powertrain assemblies

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