AW crown 33Z plastic 16mm balanced lightweight

A balanced and lightened anglewinder crown gear to get the best out of your drivetrain

The crown gear NSR6633E is a transmission component for anglewinder configurations made from high-precision technical plastic. With 33 teeth and a pitch of 16 mm, it comes factory-balanced and lightened, making a difference on the track: less vibration, less noise, and a cleaner response to each motor impulse.

Features and function

• Number of teeth: 33Z
• Pitch: 16 mm (AW)
• Material: precision technical plastic
• Treatment: factory-balanced and lightened
• Reference: NSR6633E

The lightening reduces the rotating mass of the crown gear, improving acceleration and response of the assembly. The balancing, on the other hand, eliminates imbalances that cause micro-vibrations at high revolutions, extending the lifespan of the transmission and improving the car's stability in high-speed corners.

Compatibility and installation

This crown gear is designed for anglewinder configurations with a 16 mm pitch, the standard used by NSR in most of its chassis and motors in this range. To determine the final gear ratio, combine it with the appropriate pinion according to the layout and motorisation you use. NSR offers a wide catalogue of compatible pinions to adjust the setup for each circuit.

Before installation, ensure that the crown gear shaft is free of burrs and that the crown gear fits correctly. A good alignment between pinion and crown gear is essential to make the most of the factory balancing.

Installation and preparation

The installation process does not require special tools, although it is recommended to check the lateral play between pinion and crown gear with a slight clearance: enough for them to turn without rubbing, but not so much that it causes knocking. A small drop of specific slot transmission lubricant on the teeth will significantly extend their lifespan and reduce noise during operation.

Who is this crown gear for?

Whether you are preparing a car for club competition or looking to optimise the performance of your slot at home, this crown gear covers both aspects. The factory balancing is especially valuable in high RPM configurations, where any imbalance is magnified. The most demanding enthusiasts seeking a clean setup without the need to work on the part will find the NSR6633E a ready-to-use solution.

Frequently asked questions

Which NSR chassis is this crown gear compatible with?

It is compatible with NSR chassis that use anglewinder transmission with a 16 mm pitch. Check the technical documentation of your specific chassis to confirm compatibility before installation.

What real advantage does factory balancing provide?

The balancing eliminates small mass imbalances in the crown gear that, at high revolutions, translate into vibrations. These vibrations increase wear on components, reduce grip, and can affect the car's trajectory. A balanced crown gear runs more smoothly and prolongs the life of the drivetrain.

What is the difference between a balanced crown gear and a lightened one?

Balanced means that the mass distribution is uniform around the axis to avoid vibrations. Lightened means that non-essential material has been removed to decrease rotational inertia and improve acceleration. This crown gear combines both treatments.

How often should the crown gear be replaced?

It depends on usage, lubrication, and the adjustment of the transmission. It is advisable to periodically check the wear of the teeth; if you notice roughness or skipping when rolling the drivetrain by hand, it is time to replace it.

Can I use this crown gear in sidewinder or inline configuration?

No. This crown gear is specific for anglewinder configuration (AW pitch, 16 mm). For sidewinder or inline, different geometry and pitch crown gears are used.

The NSR6633E is a 33-tooth anglewinder plastic crown gear with a 16 mm pitch, factory-balanced and lightened for smooth, vibration-free transmission in slot car racing. Designed for NSR anglewinder setups, it reduces rotational mass and improves acceleration response. A reliable replacement part for club racers and home enthusiasts looking for a clean, ready-to-run drivetrain solution.