20X27X4 Double Rubber Sealed Ball Bearing 6704-2RS 100 Piece Bulk Box For RC Cars Trucks Buggies Built Tough Smooth Rolling Zero Drag Rock Solid Game Changer Upgrade

Premium 100 Pack RC Bearing 6704 2RS Double Sealed
✔️ 20x27x4 mm sealed chrome steel roll for rc trucks and boats

These precision rolling elements feature durable synthetic rubber lip seals that lock out dirt while keeping factory grease inside. They are widely installed in remote controlled off road machines electric power tools workshop jigs and bicycle wheel assemblies where smooth rotation matters.

✅ Chrome steel construction resists wear under heavy rotational loads
✅ Dual rubber gates prevent abrasive trail particles from entering the track
✅ Exact 20 by 27 by 4 millimeter footprint matches standard housing mounts
✅ Distributed in convenient bulk cartons for race team pit stops and hobby benches

💡 Why do rubber sealed bearings outperform open designs in dusty environments?
Running proper seal protection proves handy when you want to cut down on constant maintenance cycles.
- Standard chrome steel spheres maintain steady RPM thresholds despite gritty weather inputs
- Double lip barriers trap lubricant tightly inside while blocking external moisture ingress
- Technicians swap these unit models onto truck differentials and compact generator shafts easily