Product overview
The STEAM AK4060HL is a yellow-green ball link set for AK400/420 helicopters, featuring a thread-depth observation hole and stainless steel anti-burst rings. Under customization requirements, its structural design meets demanding flight load requirements and improves flight stability. The set includes four yellow-green AK400/420 ball links measuring M3.0×Φ4.5×Φ4.8×19.0mm and four Φ5.0 stainless steel anti-burst rings.
The mounting threaded rod diameter is Φ2.5mm. Installation requires an effective threaded engagement depth greater than twice the rod diameter. The ball and ball link require a zero-tolerance fit while retaining smooth rotation; an HZ037 ball link reamer or WD40 lubricant may be used during fitting.
Propellers & airframes
