Product overview
The Scorpion HK-5025 Shaft Kit XL (6mm 44mm) is a replacement motor component intended for repairs after a shaft bends or breaks. Its stated application covers all Scorpion HK-5025 series helicopter motors. These motors use 10mm hardened steel shafts, while the described replacement shaft has a pinion end ground to 6mm for fitting 6mm pinion gears. The supplied product is a shaft kit for motor maintenance; its stated weight of 72g includes packaging.
Integration depends on shaft dimensions and the motor housing interface. The dimensional description gives a 10mm diameter and 100.6mm length but explicitly associates those measurements with HK-5020 series motors. Other brushless motor fit is conditional on requiring that diameter and length, with shortening possible using a Dremel and cut-off wheel. In Scorpion motors, the shaft is a slight press fit in the aluminum front housing. Removal requires a bearing press or drill press and wooden housing support to prevent warping; releasing the setscrews alone is insufficient.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | Scorpion HK-5025 Shaft Kit XL (6mm 44mm) |
| Product type and intended application | Factory replacement motor shaft kit for all Scorpion HK-5025 series helicopter motors. |
| Shaft material and diameter | 10mm hardened steel.HK-5025 motor shaft construction. |
| Described shaft dimensions | 10mm diameter; 100.6mm length.The dimensional description explicitly identifies HK-5020 series motors. |
| Pinion end diameter | Ground down to 6mm.For installation of 6mm pinion gears. |
| Other motor fit | Fit extends to other brushless motors requiring the same shaft diameter and length.Other brushless motors must require a 10mm shaft of the described length. |
| Length modification | Shafts can be shortened using a Dremel tool and cut-off wheel.If necessary to fit other motors. |
| Housing interface | Slight press fit into an aluminum front housing.Installed in Scorpion motors. |
| Removal requirements | Removing the setscrews does not release the shaft; a bearing press or drill press is required, with wooden support to prevent front housing warping.During shaft removal, with the motor front housing supported in a block of wood. |
| Weight | 72gIncluding packaging. |
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