28d Anglewinder Nylon Crown Gear ø15.6mm for 3mm Axle and M3 Screw

The BRM-S095S Crown Gear: Precise Transmission for Anglewinder Setups in 1/32

When the Anglewinder setup is the basis of your chassis, every transmission component matters. This 28-tooth crown gear from BRM is specifically manufactured for this type of drivetrain arrangement, where the motor is positioned at an angle to the rear axle, and where the gear geometry must be well resolved to avoid power loss and unnecessary mechanical noise.

Function and Performance

With 28 teeth and an outer diameter of 15.6 mm, this crown gear offers a moderate ratio that fits well on tracks with technical curves and medium-length straights, the most common in club racing at 1/32 scale. The chosen material, high-strength technical nylon, provides just the right elasticity to absorb vibrations without sacrificing rigidity in torque transmission.

Unlike metal crown gears, nylon operates silently, reduces pinion wear, and allows for a more progressive run-in. For many tuners, it is the usual choice when seeking consistency and durability over a purely aggressive response.

Compatibility and Installation

The crown gear is designed exclusively for 3 mm axles, the most widely used standard in 1/32 competition chassis. It is secured using an M3 grub screw, ensuring that the crown gear remains fixed to the axle without slipping under load, a critical point when working with high-torque motors.

Before final installation, it is advisable to check the alignment between the crown gear and pinion: a slight misalignment can cause premature wear or noise, even with high-quality materials. Adjust the motor position in the chassis until the gearing is smooth throughout the axle's rotation.

Common Mistakes When Installing Nylon Crown Gears

• Over-tightening the grub screw: this can deform the nylon at the contact point and create eccentricity. Tighten firmly, but do not overdo it.
• Not checking gear play: too much play causes rattling; too tight generates friction and heat. The sweet spot is when the pinion engages without noticeable stiffness.
• Mixing incompatible tooth pitches: ensure that the pinion you are using shares the same pitch as this crown gear to guarantee proper meshing.

Frequently Asked Questions

Is this crown gear suitable for Sidewinder or Inline configurations?

No. It is specifically designed for Anglewinder setups, where the motor is positioned at an angle to the rear axle. Sidewinder or Inline configurations require crown gears with different geometries.

What axle diameter does it accept?

Only 3.0 mm axles. It is not compatible with 2.38 mm axles or other sizes.

Is the M3 grub screw included?

Yes, the BRM-S095S reference includes the necessary M3 grub screw for securing it to the axle.

What Allen key is needed for the M3 grub screw?

A standard M3 grub screw requires a 1.5 mm Allen key, although it is advisable to verify this with the included screw, as it may vary by manufacturer.

Which pinions is it compatible with?

It must be paired with pinions that share the same tooth pitch. Check the pinion specifications before installation to ensure proper meshing and avoid premature wear.

Is it suitable for competition or only for recreational use?

It is valid for both uses. Technical nylon offers reliable performance in both regular practice sessions and club racing at 1/32 scale.

The BRM-S095S is a 28-tooth anglewinder crown gear made from high-resistance nylon, designed for 1/32 scale slot car racing. With a 15.6 mm outer diameter and 3 mm axle compatibility, it delivers smooth and reliable power transmission in anglewinder setups. Secured with an M3 grub screw, it is a trusted choice for club-level competition and slot car tuning enthusiasts looking for consistent performance and low mechanical noise.