29t 16.8mm Crown Anglewinder

NSR 29t Anglewinder Crown Gear: Precise Transmission for Your NSR Builds

The NSR6529 is the 29-tooth anglewinder crown gear from NSR, with a diameter of 16.8 mm and a working angle of 15°, specifically designed for the brand's own cars. If you are preparing or tuning an NSR chassis with anglewinder motorisation, this crown gear is the starting point for defining the gear ratio and, with it, the driving character of the car on track.

Main Features

• Number of teeth: 29t
• Diameter: 16.8 mm
• Configuration: Anglewinder 15°
• Reference: NSR6529
• Recommended pinions: NSR71XX series, with a hub diameter of 7.5 mm

Function and Performance

In an anglewinder system, the motor is positioned at an angle relative to the rear axle, allowing for an interesting compromise between centre of gravity height and ease of assembly. The 29-tooth crown gear offers a balanced gear ratio: sufficient acceleration out of corners without sacrificing top speed on the longest straights.

The NSR machining quality ensures smooth gearing, with no unnecessary play, resulting in quiet transmission and reduced energy loss between motor and axle. For the enthusiast seeking consistency lap after lap, this detail makes a difference.

Compatibility and Assembly

This crown gear is designed for NSR cars and should be used with pinions from the NSR71XX series, which have a hub diameter of 7.5 mm. The choice of pinion will determine the final gear ratio, so it is advisable to adjust it according to the circuit and the type of motor installed.

Before assembly, check that the wheelbase of the chassis is correct for this combination and that the crown gear is well aligned with the pinion. A slight misalignment can cause premature wear and noise in the transmission.

Common Errors

• Mixing pinions of a different diameter than recommended (7.5 mm): this can cause excessive play or interference between parts.
• Over-tightening the crown gear fixing screw: this can deform the plastic or misalign it.
• Not checking the crown-pin alignment after assembly: a misaligned gear wears both parts quickly.

Frequently Asked Questions

Is this crown gear suitable for inline or sidewinder configurations?

No. The NSR6529 is specifically designed for 15° anglewinder setups. For inline or sidewinder configurations, NSR offers crown gears with different geometries.

What pinion should I use with this crown gear?

NSR recommends pinions from the NSR71XX series, with a hub diameter of 7.5 mm. The number of teeth on the pinion will be chosen according to the gear ratio you need for your circuit and motor.

How many teeth on the pinion works best?

That depends on the circuit and the motor. Generally, pinions with more teeth provide higher top speed and less acceleration; pinions with fewer teeth offer more pull out of corners. The optimal combination is adjusted on track according to the characteristics of the layout.

Is it compatible with chassis from other brands?

NSR designs it for its own cars. It may be compatible with other chassis that accept 16.8 mm and 15° anglewinder crown gears, but the verification of fit and alignment is the responsibility of the builder.

How often should I check or replace the crown gear?

It depends on usage. In club racing, it is advisable to inspect it periodically for wear on the flanks of the teeth. Visible wear or noise in the transmission are clear signs that it needs replacing.

The NSR6529 is a 29-tooth anglewinder crown gear with a 16.8 mm diameter, designed for NSR slot cars and compatible with NSR71XX pinions (7.5 mm hub diameter). It features a 15° angle configuration, ensuring smooth and efficient power transmission in anglewinder setups. An essential slot car spare part for club racers and enthusiasts looking to fine-tune their NSR build.