12d Pinion M50 Nylon

Transmission Ready: 12 Tooth Module 50 Nylon Pinion for 2 mm Axle

The 12d. M50 Nylon Pinion SC-1012 from Scaleauto is a transmission component designed for standard 2 mm axles, made from high-durability nylon. Its Module 50 makes it compatible with crown gears of the same module, and its 12 teeth define a specific gear ratio that directly affects the top speed and acceleration of the car. Four units per pack ensure you always have spares on hand in the workshop.

Function and Performance

The pinion is one of the most requested components in slot transmission: it operates at high revolutions and suffers progressive wear, especially during long sessions or with powerful motors. The high-durability nylon material offers a good balance between mechanical strength, lightness, and quiet operation, reducing vibrations compared to metal versions and facilitating smoother operation with the crown gear.

With 12 teeth and Module 50, this pinion allows for gear ratios that prioritise acceleration, something particularly valued on tracks with many curves or in categories where exit response from corners makes a difference.

Compatibility

Designed for standard 2 mm axles, the most common format in competitive and prepared slot motors. For correct meshing, the crown gear used must also be Module 50. Always check the module of your crown gear before replacing the pinion: mixing different modules damages both parts and ruins the transmission.

Installation and Preparation

The fit of the pinion to the axle should be firm but not forced. In case of play, a specific adhesive for transmissions ensures fixation without stiffening the assembly. Check the backlash (play between pinion and crown) once assembled: a minimal but perceptible play is ideal for efficient and durable meshing. Excessive tightening between both parts generates heat, premature wear, and loss of power.

Ideal for…

• Preparers looking for reliable and affordable spares for their transmissions.
• Enthusiasts wanting to adjust the gear ratio of their slot car.
• Always keeping spare units in the competition case.
• Club circuits with high wear of transmission components.

Frequently Asked Questions

What is the difference between a nylon pinion and a metal one?

Nylon is lighter, quieter, and absorbs vibrations better, resulting in smoother operation. Metal offers greater wear resistance in very demanding conditions but generates more noise and can wear the crown gear faster if not perfectly aligned. For most enthusiasts and club competition, nylon is the most balanced option.

Which crown gears is this pinion compatible with?

Only with Module 50 crown gears. Mixing different modules causes incorrect meshing that quickly damages both parts. Always verify the module of your crown gear before installing the pinion.

Is it suitable for any motor with a 2 mm axle?

In principle, yes, as long as the axle is 2 mm in diameter, which is the most common standard size in slot motors. Check the diameter of your motor's axle before placing an order if you have doubts.

How many units does the SC-1012 pack include?

The pack contains 4 units, allowing you to have spares ready for several cars or to replace worn parts throughout the season without interrupting preparation.

How often should the pinion be checked or replaced?

It depends on usage, the motor, and track conditions. In club competition with frequent sessions, it is advisable to check the condition of the teeth every few races. Visible wear on the teeth or an increase in noise in the transmission are clear signs for replacement.

The Scaleauto SC-1012 is a 12-tooth Module 50 nylon pinion gear for standard 2 mm axles, sold in a pack of 4 units. Designed for slot car transmission setups, it delivers smooth and reliable power transfer. Compatible with Module 50 crown gears, it is an essential spare part for slot car racing enthusiasts, club competitors, and home preparation benches looking for consistent performance and easy replacement.