30t 16.8mm Crown Gear Anglewinder

NSR 30-Tooth Anglewinder Crown Gear: Well-Measured Transmission for Your NSR Cars

The NSR6530 crown gear is one of the key components in adjusting the transmission of a slot car with an Anglewinder configuration. With its 30 teeth and a diameter of 16.8 mm, it fits directly into NSR cars prepared for angled motors, offering a gear ratio designed to balance acceleration and top speed according to the type of track.

Technical Features

• Reference: NSR6530
• Teeth: 30z
• Diameter: 16.8 mm
• Angle: Anglewinder 15º
• Recommended Compatible Pinions: NSR71XX series with a diameter of 7.5 mm
• Application: NSR cars with Anglewinder configuration

What is the Anglewinder Configuration?

In an Anglewinder setup, the motor is positioned at an angle relative to the rear axle, allowing for a lower centre of gravity compared to a classic Sidewinder — where the motor runs parallel to the rear axle — and, at the same time, achieving a more direct transmission than in some Inline setups. This geometry is very popular in competition chassis because it combines compactness, good weight distribution, and efficient transmission.

Transmission Ratio and Crown Gear Selection

The choice of crown gear is crucial for the car's behaviour. A 30-tooth crown gear offers a reduction ratio that favours traction and acceleration, especially on tracks with many curves or technical layouts. If your track has long straights, you may want to explore crown gears with fewer teeth; if curves predominate, this 30t is a solid choice.

To get the most out of it, NSR recommends pairing it with the NSR71XX series pinions, which have a diameter of 7.5 mm and are designed for a clean and snug mesh with this crown gear.

Compatibility and Installation

This crown gear is specifically designed for NSR cars in Anglewinder configuration. Before installation, check that your car's chassis supports this system and that your motor pinion belongs to the recommended series (NSR71XX). Proper lubrication at the contact point between pinion and crown gear, along with correct axle alignment, will make a difference in the durability and quietness of the transmission.

Frequently Asked Questions

Is this crown gear compatible with other slot car manufacturers?

This crown gear is designed for NSR cars with Anglewinder configuration. Compatibility with other brands depends on whether the chassis accommodates a 15º angled motor and whether the pinion used has the correct module. Check your car's specifications before installation.

What pinions should I use with the NSR6530?

NSR recommends the NSR71XX series pinions, with a diameter of 7.5 mm. They ensure a precise and snug mesh with this 30-tooth crown gear.

What is the difference between a 30-tooth crown gear and one with fewer teeth?

A higher number of teeth on the crown gear (while maintaining the same pinion) results in greater reduction: more traction and acceleration, but lower top speed. Crown gears with fewer teeth reduce the reduction ratio and favour maximum speed, making them more suitable for tracks with long straights.

Is it necessary to lubricate the crown gear after installation?

Yes. Applying a small amount of specific gear lubricant at the contact point between pinion and crown gear helps reduce wear and noise in the transmission, prolonging the lifespan of both parts.

Can I use this crown gear in official competition?

It depends on the regulations of your championship or club. NSR is a widely accepted brand in competition, but it is advisable to verify that the resulting transmission ratio is within the limits set by the organisation.

The NSR6530 is a 30-tooth Anglewinder crown gear with a 16.8 mm diameter, designed for NSR slot cars running a 15° Anglewinder motor configuration. Compatible with NSR71XX pinions (7.5 mm diameter), it delivers reliable power transmission and precise gear mesh for club racing and competitive slot car setups. An essential upgrade or replacement part for NSR Anglewinder chassis builds.