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Open Steel Bearings Bushings 9 mm (B9CA).
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 open bearing ensures higher strength compared to the closed because the ball
bearings that compose it are of larger dimensions.
Another advantage of these bushings is the minimum thickness that does not
interfere with selector plate and body of the rifles.
The dimensions are:
- outer diameter: 9 mm
- inner hole: 3 mm
- tickness: 2.5 mm
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