Egodrift Beta Tengu 4030HT 555Kv Brushless Motor 6 × 38 mm

Egodrift Beta Tengu 4030HT 555Kv Helicopter Motor

The Egodrift Beta Tengu 4030HT 555Kv offers a lower-Kv winding for experienced builders configuring an alternative helicopter power system. This version features a 6 × 38 mm external shaft.

The 4030HT platform sits between the 4025 and 4035 motor sizes. Its HT-generation design incorporates a taller base developed to improve cooling compared with the earlier HS generation.

Lower-Kv Power-System Planning

Select the 555Kv winding according to your battery voltage, available gearing, and intended rotor speed. Use the complete motor-to-main-rotor reduction when calculating head speed.

Advanced builders may consider a lower-Kv motor when planning a higher-voltage configuration. Confirm the permitted operating voltage of the motor and use an ESC rated for the selected battery configuration.

Beta HT or Eclipse?

This is the Beta Tengu 4030HT, not the newer Tengu 4030EC Eclipse. Check dimensions and replacement parts for the exact motor generation.

Shafts intended for the earlier 40xx HS generation do not fit the taller HT base. The 4030EC Eclipse also uses a different service kit.

Specifications

• Manufacturer: Egodrift
• Motor family: Beta Tengu 4030HT
• SKU: EGO-11875
• Motor Kv: 555Kv
• Motor configuration: 12N10P — 10 magnetic poles
• External shaft diameter: 6 mm
• External shaft length: 38 mm

Installation & Replacement Parts

Confirm motor-body and canopy clearance, mounting-hole alignment, mounting-screw length, and pinion positioning. Where a motor-shaft support bearing is fitted, verify its engagement and alignment.

For servicing, select the Egodrift 4030HT Shaft & Bearing Kit, 6 × 38 mm — EGO-11889.

Motor & Gearing Setup Support

Compare battery cell count, motor Kv, main gear, pinion, and ESC output using Egodrift’s Headspeed Calculator. Enter 555Kv for this motor.

Egodrift recommends calculating at 3.8V per cell and aiming for approximately 80% ESC output as a starting point for governor headroom. Calculated speeds are estimates; actual results depend on battery condition, governor behavior, and flight load.

Calculate Your Head Speed

Frequently Asked Questions

Is this motor the 560Kv 4030EC Eclipse?
No. This is the 555Kv Beta Tengu 4030HT, a different motor generation with different shaft and service-part requirements.

Which replacement shaft kit should I use?
EGO-11889, the 4030HT kit with a 6 × 38 mm external shaft.

Does lower Kv automatically mean lower power?
No. Kv describes motor speed per volt. Evaluate the winding together with battery voltage, gearing, and the complete power system.