32d Crown Gear Anglewinder 25° Procomp-R

32-Tooth Anglewinder Crown Gear at 25° for Scaleauto Procomp-R Setups

When it comes to fine-tuning the transmission in a competition slot car, the crown gear is one of the most influential links in the entire mechanical chain. This 32-tooth crown gear, specific for anglewinder at 25° configuration, fits directly into the Scaleauto Procomp-R setups, one of the most established references in the serious preparation and competition segment.

Function and Performance

The crown gear transmits the torque from the motor to the rear axle. In an anglewinder configuration, the motor is mounted at an angle relative to the axle, allowing for a more balanced weight distribution within the chassis and freeing up space to adjust the geometry of the assembly. The 25° angle is the one adopted by Scaleauto in its Procomp-R line, so this crown gear is manufactured with the exact inclination of the teeth to ensure a clean and backlash-free engagement with the corresponding pinion.

With 32 teeth, this crown gear offers a gear ratio aimed at developing higher top speed compared to crowns with fewer teeth, in exchange for a slightly smoother initial traction. It is a common choice on tracks with long straights where maximum speed is prioritized over immediate response out of corners.

Compatibility

This crown gear is specifically designed for the Scaleauto Procomp-R setups in anglewinder at 25° configuration. Before installation, it is advisable to verify that the motor pinion is compatible in module and that the rear axle has the appropriate diameter to ensure a firm and concentric fit.

Installation and Preparation

A good crown gear installation starts with ensuring that it is perfectly centred and free of eccentricity. Any deviation translates into vibration, uneven wear of the teeth, and loss of transmitted power. We recommend checking the parallelism between the crown gear and pinion with the chassis already assembled, and adjusting the engagement distance to achieve a firm contact without excessive pressure. A minimal lubrication point on the teeth significantly extends the lifespan of both parts.

Common Mistakes

• Installing the crown gear without checking for eccentricity: causes vibrations and premature wear.
• Using a pinion with a different module than the crown gear: incorrect engagement quickly deteriorates the teeth.
• Over-tightening the axle fixation: can deform the crown gear and compromise its concentricity.
• Forgetting to check the condition of the pinion when changing the crown gear: if the pinion is worn, it will accelerate the deterioration of the new part.

Frequently Asked Questions

What is the difference between an anglewinder crown gear and an inline or sidewinder crown gear?

The difference lies in the angle of the teeth. A crown gear for inline or sidewinder configuration has teeth perpendicular to the axle, while the anglewinder crown gear has teeth inclined (in this case 25°) to match the angle at which the motor pinion engages the rear axle. Mixing crown gears of different configurations results in poor engagement and accelerated wear.

Which pinions is this crown gear compatible with?

It should be used with pinions designed for anglewinder at 25° configuration and of the same module. Scaleauto offers specific pinions for its Procomp-R setups. Check the reference of the appropriate pinion according to the motor you are using.

Is 32 teeth a suitable ratio for any track?

It depends on the track and the motor. 32 teeth favour top speed and is a good choice on tracks with long straights. On technical tracks with many tight corners, it may be worth exploring crown gears with fewer teeth to gain acceleration. The crown/pinion ratio is one of the most accessible tuning parameters and has a significant impact on the car's behaviour.

How often should the crown gear be checked or replaced?

There is no fixed interval; it depends on the intensity of use, the type of track, and lubrication. In competition, it is good practice to check the condition of the teeth before each important session and to replace the crown gear at the first sign of visible wear, as worn teeth directly affect lap consistency.

Can I use this crown gear on cars from other brands?

It is primarily designed for the Scaleauto Procomp-R setups. It may be compatible with other chassis that use anglewinder at 25° configuration and the same tooth module, but it is essential to verify this on a case-by-case basis before assuming compatibility.

The Scaleauto SC-1172R is a 32-tooth anglewinder crown gear at 25°, designed for Procomp-R slot car setups. A precise and reliable choice for slot car racing tuning, gear ratio adjustment, and competitive slot car preparation. Compatible with Scaleauto Procomp-R anglewinder motor configurations.