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The Geometry of Maximum Reliability (d3 > d1 > d2)
1.Structural Integrity & Zero Backlash
Conventional designs (Sketch A & B) rely on external connectors, which often become weak points under high-torque impacts. Injoy’s monoblock solution (Sketch C) removes all physical interfaces, ensuring perfectly synchronized power transmission.
2. Diameter Logic & Adaptation Margin
As shown in the comparison, the integrated structure recovers space used by internal keyways, pushing the shaft diameter (d3) to its physical limit: d3 > d1 > d2.
3. Solving the Thin-Wall Crisis
In field installations, valve stems are often oversized. Small shafts force a trade-off between bore size and wall thickness, leading to cracks. With the maximized d3, Injoy maintains a robust wall thickness even when accommodating oversized stems, effectively eliminating the risk of structural failure.
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