Futaba FUEBS3376 Hardened Gear Set for BLS257 Servos AS4169 EBS3376  [FUEBS3376]

Replacement Gears for BLS257 Servos

This gear kit supplies hardened steel replacement gears for use in BLS257 servo configurations. Intended for hobby-scale electric models, the set addresses the mechanical gear components only and suits cars, boats, and other radio-controlled projects using the BLS257 footprint.

Install this set when you detect gear wear, increased noise, or loss of precise centring. Fresh gears will restore proper mesh and repeatable end-point feel without changing the servo electronics. The components are aimed at maintenance and modest performance refinement rather than increased motor output.

Fitment tips: remove the casing, label the gear stack order, preserve any thin spacers, and use a tidy workspace to keep small items secure. Before reapplying power, confirm the gears turn freely by hand and then calibrate neutral on your transmitter.

Tuning advice: small, careful alterations to mesh and horn position reduce squeal and sharpen response; excessive preload will accelerate wear. Keep ball bearings and any dedicated spacers in their original locations to retain correct alignment.