This pack contains four 3x14 drive shaft pins with an extra hard treatment as specified by HUDY. They are intended as replacement items for scale RC drivetrain connections where standard pins have shown premature wear.
The pins clamp shaft joints and transmit torque between couplings. The hardened finish reduces abrasion and the risk of bore elongation when used in higher-load arrangements. The sizing corresponds to parts designed for a 3 mm diameter pin and a 14 mm length.
Before installing, check bore concentricity and alignment, consider replacing both pins on a joint to avoid imbalance, and examine mating components for wear that might require machining or swapping out.
These extra hard 3x14 pins are suitable when restoring drivetrain integrity or seeking improved service life under tougher operating conditions; always confirm compatibility before fitting.
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