17-tooth pulley for 1.8mm belt. M2 fixing pair.

Transmission Precision: Scaleauto 17-Tooth Toothed Pulley for 1.8 mm Belt

When working with belt drive systems in slot racing, every piece of the assembly counts. The SC-1727A toothed pulley from Scaleauto is designed for those seeking a clean engagement, free of play, and with repeatable performance lap after lap. This pair of pulleys offers exactly that: a reliable anchor point in the car's powertrain.

Function and Technical Features

• 17 teeth: specific tooth design that ensures precise engagement with the belt, without skips or vibrations.
• Compatible 1.8 mm belt: designed and sized exclusively for this belt pitch, common in competitive slot setups.
• M2 fixing: the M2 fixing screw allows for secure mounting on the axle, facilitating centring and preventing displacement during operation.
• Pair format: the pack includes two pulleys, allowing for simultaneous renewal of the complete transmission or immediate spare availability.

Compatibility and Installation

This pulley is integrated into Scaleauto's belt drive system, compatible with the brand's chassis and mounts that use a 1.8 mm pitch belt. Before installation, it is advisable to verify that the inner diameter fits the axle of your setup and that the M2 screw is properly tightened without deforming the part.

The M2 screw mounting offers a practical advantage in the pits: disassembly and readjustment is quick, which is particularly useful during preparation sessions or when needing to modify the gear ratio during a race day.

Preparation and Common Mistakes

• Ensure both pulleys (driving and driven) are well aligned in the same plane before tensioning the belt; even minimal misalignment causes premature wear and loss of power.
• Do not overtighten the M2 screw: excessive torque can damage the housing or misalign the pulley.
• Periodically check the condition of the belt: a worn belt transmits vibrations that accelerate the wear of the pulleys.
• Always replace both pulleys of the pair at the same time to maintain wear balance in the transmission.

Who is this component for?

Targeted at both the club preparer looking to fine-tune their car's transmission on Sport track, and the more technical driver who works on every gram of friction in their setup. The Scaleauto origin ensures tolerances consistent with the rest of the brand's components, simplifying integration into custom chassis.

Frequently Asked Questions

How many pulleys are included in the SC-1727A pack?

The pack includes a pair, that is, two 17-tooth toothed pulleys.

What belt pitch is this pulley compatible with?

It is designed for a 1.8 mm belt. It is not compatible with other belt pitches without prior verification of the tooth design.

What fixing screw does it use?

The fixing is done using an M2 screw, a standard commonly used in precision slot components.

Is it compatible with chassis from other brands?

It is primarily optimised for Scaleauto setups. Compatibility with chassis from other brands depends on the inner diameter of the pulley and the axle used; it is advisable to check this before installation.

Can it be used in competition transmissions?

Yes. This type of toothed pulley is common in competition setups where belt transmission is chosen for its smoothness and lower noise level compared to direct transmission via crown gear and pinion.

Scaleauto SC-1727A toothed pulley, 17 teeth, designed for 1.8 mm belt drive systems with M2 screw fixing. Sold as a pair, this precision slot car component ensures smooth and reliable belt transmission for club racing and competitive slot car builds. Compatible with Scaleauto Sport track chassis and belt-drive setups requiring 1.8 mm pitch pulleys.