The STEAM AK4208 is a matte black lower metal main shaft mounting block for Steam AK400/420 helicopters. Precision CNC machined from 6061T6 aluminum alloy, it also serves as a servo mounting bracket and comes with bearings and four mounting screws.
The STEAM AK4208 lower metal main shaft mounting block fits Steam AK400/420 helicopters and also serves as a servo mounting bracket. Its matte black body is precision CNC machined from 6061T6 aluminum alloy with a fully enclosed frame structure.
High-precision, high-speed bearings are supplied as standard. The package contains one lower main shaft mounting block measuring 31×40.5×6mm and four M2.5×7mm socket head cap screws.
| Specification | Value & conditions |
|---|---|
| Model | STEAM AK4208 |
| Product type and finish | Matte black lower metal main shaft mounting block |
| Helicopter compatibility | Steam AK400/420 helicopters |
| Material and manufacturing | 6061T6 aluminum alloy, precision CNC machined |
| Structure | Fully enclosed frame structure |
| Included bearings | High-precision, high-speed bearings supplied as standard |
| Additional mounting function | Also serves as a servo mounting bracket |
| Supplied mounting block | 1 × AK420 lower main shaft mounting block, 31×40.5×6mm |
| Supplied screws | 4 × M2.5×7mm socket head cap screws |
