Serpent SER120127 64P 40T Hard Aluminum Motor Pinion Gear - Fine Pitch  [SER120127]

Serpent SER120127 Motor-pinion Aluminium Hard 64P / 40T
Price:
£11.62
Brand:
Serpent
Model:
SER120127
Condition:
Brand New
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Improve Gear Engagement with the Serpent SER120127 Pinion

The Serpent SER120127 is a hard aluminium motor pinion cut to a 64P pitch and fitted with 40 teeth to provide accurate meshing and consistent drivetrain feel for scale and racing models.

Durability Meets Low Weight

Manufactured from hard aluminium, this pinion delivers a durable contact surface without adding undue weight to the motor assembly. That helps preserve motor efficiency while surviving normal wear.

Better Control from a 64P Profile

Using a 64-pitch pinion gives more precise tooth engagement than coarser pitches, aiding smoother throttle modulation and cleaner gear transitions when navigating technical layouts.

Practical Replacement or Upgrade

Suitable as a replacement or an upgrade for many standard setups, the Serpent SER120127 helps hobbyists fine tune gear ratios or refresh worn components to maintain drivetrain reliability.

Measure your motor shaft diameter and confirm the pinion grub screw aligns with the shaft. Also verify you have a matching 64P spur for correct meshing.
Inspect the pinion after several hours of running and periodically thereafter, especially if you notice noise or performance changes. Replace if teeth show deformation or significant wear.
Aluminium is lighter and can wear faster than hardened steel under heavy use, but hard aluminium pinions are common for balancing weight and durability. Keep a spare and monitor wear on high-load setups.
Yes, changing the pinion tooth count alters final drive ratio. Select a tooth count that works with your spur gear to achieve the desired acceleration and top speed trade-off.

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