Upgrading your airsoft gearbox bearings is one of the most cost-effective ways to improve reliability and reduce mechanical stress. ZCI’s 3×9mm ball bearing bushings replace standard plain bushings with precision ball bearings, minimising friction and distributing load more evenly across your gearbox assembly.
Key Features
- Ball bearing design – dramatically reduced friction versus standard bushings
- Low wear – protects motor shaft and gear teeth from accelerated degradation
- Enhanced performance – smoother trigger response and more consistent fps
- Easy installation – direct drop-in replacement for standard bushings
- Pack of six – covers multiple gearbox builds or spares
Real-World Use Cases
These bushings suit skirmishers running high-speed builds, players upgrading worn gearboxes, and anyone building a reliable primary rifle. They’re equally valuable in support weapon builds where consistent performance matters.
Technical Specifications
- Bore diameter: 3mm
- Outer diameter: 9mm
- Bearing type: Ball bearing
- Quantity: 6 units
Compatibility & Upgrades
ZCI bushings are standard parts compatible with most 8mm and 7mm gearbox housings. Always verify your gearbox type before purchase. Pair with quality shims and a matched motor for best results.
UK Legal & Site Notes
As an internal component, these bushings fall outside weapons restrictions. Fit them to any UK-legal airsoft rifle. Always chrono after reassembly to confirm fps remains compliant with your site’s limit (typically 328 fps for AEGs).
Upgrade your gearbox reliability today with ZCI ball bearing bushings at Airsoftdirect UK.










