Scaleauto toothed belt with 95 teeth and 1.5 mm thickness (ref. SC-1720A95), designed for belt drive systems in slot cars. An essential replacement component when the track demands performance and reliability in every corner.
The transmission that keeps your car connected to the track
The Scaleauto SC-1720A95 timing belt is a specific replacement for belt-driven transmission systems in slot cars. With 95 teeth and a thickness of 1.5 mm, it is manufactured to fit precisely in the transmission assemblies that Scaleauto uses in several of its competition models.
Function and performance
In slot cars that use belt transmission, this part is the link between the motor pinion and the rear axle pulley. Its correct tension and condition largely determine the smoothness of throttle response and the efficiency of power transfer. A worn or excessively loose belt results in loss of traction, delayed response, and, in more severe cases, axle slipping.
- 95 teeth: calibrated length for compatible Scaleauto transmission assemblies.
- 1.5 mm thickness: standard dimension that ensures the correct fit between pulley and pinion.
- Internal tooth design that prevents slipping under load, transmitting torque positively.
Compatibility
This belt is designed for Scaleauto models and chassis that specify the reference SC-1720A95. If you have doubts about whether it fits your specific car, consult your model's manual or contact our team: we will guide you without obligation.
Installation and preparation
Changing the belt is one of the most common maintenance operations in slot cars with this type of transmission. Some tips for doing it correctly:
- Remove the chassis and access the transmission assembly without forcing the body mounts.
- Check the condition of the pulley and pinion before installing the new belt: if they show wear or eccentricity, also replace those parts.
- Adjust the tension according to Scaleauto's recommendations for your model. An overly tight belt generates heat and premature wear; too loose, and it slips.
- After installation, run a few meters at moderate speed to verify that there are no unusual noises or vibrations.
Common mistakes
- Installing a belt with a different number of teeth or thickness than specified: even if it fits physically, the track performance will not be optimal.
- Forgetting to check the alignment of the pulley and pinion, which causes accelerated lateral wear.
- Reusing a belt with micro-cracks or loss of elasticity: it may break during a race.
Frequently asked questions
How often should the timing belt be changed?
It depends on the level of use and track conditions. In regular club competition, it is advisable to inspect it after each session and replace it at any sign of stretching, micro-cracks, or wear on the teeth. In recreational use, periodic inspection during each car maintenance is sufficient.
Can I use this belt on cars from other brands?
Theoretically, if the dimensions (number of teeth, thickness, and pitch of the teeth) match the transmission system of another manufacturer, it could work. However, we recommend always using the reference specified by Scaleauto for its chassis, as it guarantees the correct fit and expected performance.
Does the timing belt affect cornering behaviour?
Yes, indirectly. A belt in good condition transmits torque progressively and without play, which is particularly noticeable on corner exit and in the response to the trigger of the controller. With a worn belt, that response becomes less predictable.
Is it sold in a pack or as a single unit?
The reference SC-1720A95 corresponds to the individual unit. If you need several to keep as spare stock, you can add as many as you need to the cart.
The Scaleauto SC-1720A95 is a 95-tooth timing belt with 1.5 mm thickness, a key replacement part for belt-driven slot car transmission systems. Whether you race at a club level or tune your model for maximum track performance, keeping a spare belt on hand ensures you're never sidelined by a worn drivetrain. Available at Ministry of Hobby, your specialist for slot car parts, Scaleauto components, and scale modelling accessories.