MG318T/0.5M 40Cr 18T Motor Gear — 0.5M Module, 3.175mm Bore by GPM [MG318T/0.5M]

40Cr Steel Motor Gear 18T ( Module:0.5mm, Motor Tooth Diameter:3.175mm) - GPM MG318T/0.5M

Price:

NZD$13.24

Brand:

GPM

Model:

MG318T/0.5M

GTIN:

4894538411423

Condition:

Brand New

Color Available:

Quantity:

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Description
FAQ

Precision 40Cr pinion for RC motors

The MG318T/0.5M motor gear is a compact pinion intended for motors using a 0.5mm module and a 3.175mm motor tooth diameter. Forged from hardened 40Cr steel, the part resists wear better than standard gears and preserves tooth geometry under strain for reliable power delivery in small-scale drivetrains.

Featuring 18 teeth and a circular motor bore sized to 3.175mm, the pinion is fastened with two 3x3 set screws to secure it to the motor shaft. Check your motor shaft diameter, module, and tooth count before purchase to ensure correct compatibility; only motors with matching specs should be used.

During installation verify proper mesh with the spur gear, avoid heavy preload, and tighten the set screws to hold without deforming the shaft; correct alignment extends gear life and maintains drivetrain efficiency.

How does the 40Cr material affect wear life?

The hardened 40Cr composition increases resistance to abrasion and fatigue compared with softer stock gears, but correct mesh and maintenance are still required for maximum lifespan.

Can I use this on different shaft types?

The pinion uses a round bore sized for a 3.175mm motor tooth diameter and is secured by two 3x3 set screws; confirm your shaft diameter and type before fitting.