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Steel Bearings Bushings 7 mm (B7C).
The adoption of these bushings decreases the friction due to the rotation of the gears.
This advantage results in both a higher burst speed, that a better use of the energy
contained in the battery.
The dimensions are:
- Outer diameter: 7 mm.
- Inner hole: 3 mm.
- Tickness: 3 mm.
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