MG520T/0.5M 45CR 20T Pinion Gear for RC Motors (48 Pitch, Module 0.5mm) by GPM  [MG520T/0.5M]

Price:
AUD$9.88
Brand:
GPM
Model:
MG520T/0.5M
Condition:
Brand New
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Overview: Motor Pinion Specs

Supplied as an RC-scale motor pinion made from 45CR steel, this part is intended to replace pinions that meet the shown dimensions. The pinion has 20 teeth (20T), a 48 pitch profile with module 0.5mm, and includes a rounded hole to fit motors with a 5mm motor tooth diameter.

Key geometry for setup includes a total thickness of 10mm, tooth face thickness of 5mm, and a tooth face outer diameter of 12mm. Use these numbers to check mesh clearance against your spur gear and to set motor shaft alignment correctly.

Fitment tips: make sure the rounded motor hole seats fully on the motor boss, tighten using the supplied screw shaft, confirm axial position for good mesh, and re-check engagement after a short break-in. This pinion is specifically for electric scale RC use and not for use on real vehicles.

Packing includes

  • Motor Gear 20T - 1pcs
  • Screw Shaft 3x3 - 1pcs

How do I align the pinion for best mesh?

Push the rounded hole down onto the motor boss so it seats fully, then adjust motor height and axial position until the teeth meet mid-face with minimal backlash before tightening the set screw.

Can this pinion handle tuned brushless systems?

45CR steel offers solid wear resistance for many tuned setups, but on very high-power or extreme duty systems monitor wear and inspect mesh frequently.

Any break-in steps recommended?

After installation, run the drivetrain at low speed for a short period, then re-check mesh and set screw tightness to ensure stable engagement under load.

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