15d Pinion M50 Polyamide (4 units)

Transmission Precision: 15-Tooth M50 Polyamide Pinion from Scaleauto

When the transmission fails, the rest of the preparations lose their meaning. The SC-1015 pinion from Scaleauto offers exactly what the serious slot car enthusiast needs for tuning their slot car: a transmission part made of polyamide, with 15 teeth and module 50, presented in a pack of 4 units to always have spares available in the workshop.

Pinion Features

• Number of teeth: 15d.
• Module: M50 (module 0.5)
• Material: Polyamide
• Pack contents: 4 units
• Reference: SC-1015
• Manufacturer: Scaleauto

Function and Performance

The pinion is the link between the motor and the crown gear: its correct choice directly affects the gear ratio and, therefore, the acceleration and top speed of the car. A pinion with 15 teeth in module 50 is a common configuration in setups aimed at balancing acceleration and speed, especially on mixed circuits with moderately long straight sections.

Polyamide is a highly valued material in slot transmission due to its combination of lightness, wear resistance, and ability to absorb small alignment inaccuracies without generating the metallic noise typical of brass pinions. This results in a quieter transmission and greater durability under continuous use.

Compatibility and Installation

This pinion is designed to work with crown gears of module 50, the most widely used standard in competitive and prepared slot racing. Before installation, it is advisable to check that the inner diameter of the pinion fits correctly onto the motor shaft you are using, as Scaleauto has different references depending on the shaft size.

For optimal performance, check the alignment between the pinion and crown gear and apply a minimal amount of specific lubricant for slot transmissions. Careless installation, even with a quality part, generates vibration and shortens the lifespan of both components.

Common Mistakes

• Installing the pinion without checking the lateral play with the crown gear: too tight generates heat; too loose produces noise and loss of performance.
• Reusing a worn pinion with a new crown gear: uneven wear accelerates the deterioration of the new part.
• Not verifying the shaft size before purchase: consult the complete Scaleauto reference to ensure compatibility with your motor.

Ideal for...

This pack of 4 pinions is especially practical for tuners working with multiple cars at once, for those competing regularly in clubs who need spare parts on hand, and for enthusiasts experimenting with different gear ratios in search of the optimal setup for each circuit.

Frequently Asked Questions

What does module 50 mean in a slot pinion?

The module defines the size of the gear teeth. M50 corresponds to module 0.5, the most common standard in competitive slot racing. For the pinion and crown gear to mesh correctly, both must share the same module.

Why choose polyamide over brass?

Polyamide is lighter and better absorbs small misalignments, reducing noise and wear. Brass, on the other hand, offers greater rigidity and may be preferable in high-power configurations where dimensional precision is critical. The choice depends on the motor, power, and type of use.

What crown gears is this pinion compatible with?

With any crown gear of module 50 (M50). Before confirming the purchase, also check that the inner diameter of the pinion matches your motor shaft.

How often should the pinion be checked or replaced?

It depends on usage and motor power. In competitive use, it is advisable to inspect the wear of the teeth after each intense session and replace the pinion at any sign of excessive play or visible deformation.

Is it necessary to lubricate the polyamide pinion?

A minimal application of specific lubricant for slot transmissions improves performance and prolongs lifespan. Avoid excess: too much lubricant can attract dust and dirty the transmission area.

Scaleauto SC-1015 polyamide pinion gear 15 teeth M50 — pack of 4 units. Precision slot car transmission part compatible with M50 module crowns. Ideal for club racing and competitive slot car preparation. Lightweight polyamide construction for smooth, quiet power transfer and consistent performance on Sport track layouts.