Product overview
The Scorpion HKIII-4035 Shaft Kit (6mm 37mm) provides a replacement shaft and retaining hardware for helicopter motor maintenance. Its specified application covers HKIII-4035, HK-4035 and HKIV-4035 XL series motors used in the T-700E helicopter. The shaft measures 8mm in diameter and 100mm in overall length, with its pinion end reduced to 6mm for 6mm pinion gears. The supplied configuration comprises one HKIII-4035 motor shaft identified as 6mm, one washer, two C-clips and two set screws; weight including packaging is 34.8g.
Integration into other brushless motors depends on their requiring a 6mm shaft of this length. Where a shorter shaft is needed, it can be trimmed with a Dremel tool and cut-off wheel. Maintenance also requires provision for pressing the existing shaft out: Scorpion motor shafts have a slight press fit in the aluminum front housing and do not slide free after the set screws are removed. Removal requires a bearing press or drill press, with the front housing supported in a block of wood to prevent warping.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity | Scorpion HKIII-4035 Shaft Kit (6mm 37mm) |
| Product type and purpose | Factory replacement motor shaft kit for Scorpion helicopter motors. |
| Specified motor application | HKIII-4035, HK-4035 and HKIV-4035 XL series motors used in the T-700E helicopter.For HKIII-4035, HK-4035 and HKIV-4035 XL series motors used in the T-700E helicopter. |
| Shaft diameter | 8mm |
| Shaft length | 100mm |
| Pinion interface | 6mm diameter for installation of 6mm pinion gears.At the ground-down pinion end. |
| Other motor fit | Fit extends to other brushless motors requiring the specified shaft dimensions.Other brushless motors must require a 6mm shaft of this length. |
| Length modification | The shaft can be shortened using a Dremel tool and a cut-off wheel.If shortening is necessary to fit other motors. |
| Shaft retention and removal | Slight press fit; removing the set screws alone does not release the shaft.In Scorpion motors with an aluminum front housing. |
| Removal equipment | Bearing press or drill press.During shaft removal, support the motor front housing in a block of wood to prevent warping. |
| Motor shaft supplied | HKIII-4035 Motor Shaft (6mm) × 1Included in the box. |
| Washer supplied | 1 washerIncluded in the box. |
| C-clips supplied | 2 C-clipsIncluded in the box. |
| Set screws supplied | 2 set screwsIncluded in the box. |
| Weight | 34.8gIncluding packaging. |
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