First Gear for Futaba FU1K18802 - Compatible with S9155 S9255 S9351  [FU1K18802]

FUTABA S9155 S9255 S9351 SERVO FIRST GEAR 1K18802 (W/O PACKING)
Price:
NZD$5.11
Brand:
Futaba
Model:
FU1K18802
Condition:
Brand New
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Replacement First Gear for Futaba S9155/S9255/S9351

This spare first gear is intended as a servomotor component for Futaba models S9155, S9255, and S9351. Sold as a single replacement piece for situations where the original gear is worn, has stripped teeth, or suffered impact damage.

Role and tuning impact: acting as the interface between the motor pinion and the rest of the gear train, a degraded first gear can introduce play and affect centring precision. Replacing it helps restore correct tooth engagement and repeatable neutral position during tuning operations.

Installation notes: check compatibility with S9155, S9255, and S9351 prior to opening the case. Carefully remove the horn and cover, inspect mating splines and pinion for wear, align splines on reassembly, and confirm free movement before applying power. Use appropriate small tools and avoid overtightening screws.

How does the hardened steel tooth profile affect durability?

Hardened steel teeth resist wear better than softer materials, which helps prolong gear life under normal hobby use. Inspect mating parts to ensure the harder gear will not accelerate wear elsewhere.

Can this gear prevent future stripped teeth issues?

It reduces the risk of wear-related stripping, but stripped teeth can also result from impact or incorrect assembly. Correct installation and inspection of the pinion and splines are essential.

Is it safe to reuse the original mating pinion?

Reuse is possible if the pinion shows no signs of wear or damage. Always inspect mating surfaces and replace any parts that show pitting, rounding, or scoring to ensure reliable engagement.

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