Sidewinder crown gear 34t

The NSR6134 Crown Gear: Direct and Reliable Transmission for Your Sidewinder Setup

When the transmission is the critical link between the motor and the rear axle, choosing the right crown gear makes all the difference. The NSR6134 is a 34-tooth crown gear specifically designed for sidewinder configurations, where the motor is positioned parallel to the rear axle. Its geometry and tolerances are designed to provide a clean, quiet, and durable engagement, both in club track sessions and in competition.

Technical Features

• Number of Teeth: 34t
• Inner Diameter (Axle): 2.38 mm
• Outer Diameter: 18.5 mm
• Mounting Type: sidewinder (motor parallel to the rear axle)
• Reference: NSR6134

Compatibility

This crown gear is suitable for chassis and cars from the brands Scalextric, Fly, and Sloter that use a 2.38 mm axle in a sidewinder configuration. Always check the diameter of your axle and the type of pinion installed on the motor to ensure a correct gear ratio before placing your order.

Function and Performance

With 34 teeth, this crown gear offers a longer gear ratio compared to gears with fewer teeth, resulting in higher top speed on long straights. It is a common choice on tracks with high-speed sections where maximising motor power is desired without sacrificing corner response. The finish of the teeth ensures progressive contact with the pinion, reducing premature wear and mechanical noise.

Installation and Preparation

The installation process is straightforward, but attention to detail is necessary to achieve optimal performance:

1. Clean the rear axle before mounting the crown gear to prevent grease or dirt from hindering a proper fit.
2. Adjust the engagement with the pinion, leaving minimal play: not too tight (causing rubbing and heating) and not too loose (causing vibration and wear).
3. Apply a small amount of specific lubricant for slot crown gears and pinions at the contact point between the two parts.
4. Check the alignment of the motor with the axle so that the teeth engage across their entire width and not just at one end.

Common Errors

The most common mistake is mixing crown gears and pinions of different modules, which leads to poor engagement and accelerated wear. Always verify that the module of your motor's pinion matches that of this NSR crown gear before installation. Another point to check is the tightening of the fixing screw: excessive tightening can slightly deform the axle and compromise the free rotation of the transmission.

Frequently Asked Questions

Is this crown gear suitable for an inline setup?

No. The NSR6134 is designed for sidewinder configurations, where the motor is parallel to the rear axle. For inline setups, where the motor is placed in line with the axle, a crown gear with a different profile is required.

What pinion should I use with this 34-tooth crown gear?

It depends on the gear ratio you are looking for and the module of the pinions you have installed. Ensure that the module of the pinion matches that of the NSR6134 crown gear to guarantee correct engagement. NSR offers a wide range of compatible pinions.

Can I use this crown gear with brands other than Scalextric, Fly, and Sloter?

The crown gear is compatible with any 2.38 mm axle in a sidewinder configuration, regardless of the chassis brand. The brands listed in the specifications are those the manufacturer indicates as references, but if your chassis uses the same axle diameter, it should work correctly.

How often should I check or replace the crown gear?

It depends on usage and the type of track. In regular club use, periodic checks of the condition of the teeth and the engagement adjustment are sufficient. If you notice noise, vibration, or loss of performance, inspect the crown gear for wear or tooth breakage.

The NSR6134 is a 34-tooth sidewinder crown gear designed for 2.38 mm axles and 18.5 mm outer diameter, compatible with Scalextric, Fly, and Sloter slot car chassis. A reliable choice for club racing and competition setups, it delivers smooth power transmission and long-lasting performance in sidewinder configurations.