13d Pinion M50 Nylon

Precise transmission with the Scaleauto 13d M50 Nylon pinion

The pinion is one of the most sought-after components of any slot transmission: it fits directly onto the motor shaft and determines the gear ratio alongside the crown gear. Scaleauto knows this well, which is why it manufactures its nylon pinions to controlled dimensions to ensure a clean and quiet engagement.

Main features

• Number of teeth: 13
• Module: 50 (M50)
• Material: high-durability nylon
• Compatible axle diameter: 2 mm (standard axle)
• Pack contents: 4 units
• Reference: SC-1013

Function and performance

Nylon offers a highly valued combination in slot: low friction, some impact dampening capability, and progressive wear that warns before compromising performance. Compared to metal pinions, it operates more quietly and is gentler on the crown gear, especially useful when paired with plastic or nylon crowns of the same module.

The Module 50 is one of the most widely used standards in competitive and prepared slot racing, so finding compatible crowns is not an issue. With 13 teeth, this pinion provides a gear ratio aimed at intermediate developments, balancing acceleration and top speed depending on the crown it is paired with.

Compatibility and installation

Designed for standard 2 mm motors, it fits the vast majority of motors commonly used in Scaleauto preparations and custom setups on Sport track chassis. The fit should be snug but not forced: if the pinion is loose on the shaft, it is advisable to check the actual diameter of the motor shaft before installation.

As it is made of nylon, the tightening of the securing screw —if the pinion has one— should be done carefully to avoid crushing the material. A correct fit significantly extends the lifespan of the component.

Common mistakes

• Combining different modules: ensure that the crown is also M50. An M50 pinion with an M48 or M55 crown results in faulty engagement and accelerated wear.
• Mounting the pinion misaligned with the crown: take a few seconds to check the lateral alignment before permanently securing the motor or the bracket.
• Ignoring wear: nylon is durable but not eternal. Checking the pinion during each maintenance session prevents surprises during races.

Frequently asked questions

How many units are included in the SC-1013 pack?

The pack contains 4 units of the 13-tooth M50 nylon pinion.

Is it compatible with crowns from other manufacturers?

Yes, as long as the crown is also Module 50. The module is the determining parameter for gear compatibility, regardless of the manufacturer.

What type of axle is it designed for?

For the standard 2 mm axle, the most common in slot racing motors for preparation and competition.

When is it advisable to use a nylon pinion instead of a metal one?

Nylon is a good choice when looking to reduce transmission noise or when paired with a plastic or nylon crown, as metal against plastic tends to wear the crown more quickly. For high-power setups where the transmission experiences greater stresses, it may be preferable to opt for metal pinions.

Can I use this pinion in an inline or sidewinder setup?

Yes. The type of motorisation —inline, sidewinder, or anglewinder— does not affect the compatibility of the pinion, as long as the motor shaft is 2 mm and the crown is M50.

Scaleauto SC-1013 — 13-tooth Module 50 nylon pinion gear for 2 mm standard motor axle, pack of 4 units. A reliable slot car transmission part for club racing and home setup. Compatible with all M50 crowns, ideal for Scaleauto builds and Sport track configurations. Low friction, durable nylon construction for smooth and quiet gear engagement.