Crown gear Z29 x 16.8 11-degree bevel gear GREEN

The 11-degree anglewinder crown that fits where few can

The Corona Z29 x 16.8 Sloting Plus (SP072529) is a transmission component specifically designed for anglewinder setups with tighter angles parallel to the rear axle. Its 11-degree geometry sets it apart from standard crowns and makes it the correct reference when the motor pod or chassis demands it.

Technical specifications

• Number of teeth (Z): 29
• Outer diameter: 16.8 mm
• Width: 4.25 mm
• Gear angle: 11 degrees
• Axle diameter: 3/32 (2.38 mm)
• Weight: 0.6 g
• Identifying colour: Green

Function and performance

The 11-degree angular gear is designed to reduce lateral stresses on the axle and pinion when the motor is mounted at a specific angle relative to the rear axle. In a properly adjusted anglewinder setup, a crown with the wrong angle generates friction, premature wear, and loss of efficiency. With the SP072529, the contact between teeth is clean, and torque is transmitted smoothly.

Its weight of just 0.6 g helps keep rotating masses low, which is particularly noticeable during acceleration and in the car's response when the trigger is pulled.

Compatibility

This crown is intended for setups that work with a 3/32 (2.38 mm) axle and is compatible with:

• NSR triangular motor pods — the anglewinder references from the Italian brand that use this working angle.
• SC RT4 motor pod — one of the most commonly used anglewinder motor pods in club preparations.
• 3D-printed chassis designed with a tighter angle parallel to the rear axle, increasingly common in the slot maker community.

If you have doubts about whether your motor pod or chassis works with an 11-degree angle, consult the manufacturer's specifications before installation. Fitting a crown with the incorrect angle is one of the most common mistakes in anglewinder preparation.

Installation and preparation

The installation does not require special tools beyond those typically found in any slot preparation bench. It is advisable to check the axial play and lateral clearance with the pinion before permanently securing the crown, to ensure that the engagement is smooth throughout the range. A slight polishing of the axle at the mounting point facilitates centring and avoids vibrations.

Common mistakes

• Confusing the angle: Not all anglewinder crowns work at the same degree. Always check that your motor pod requires 11 degrees.
• Ignoring the axle diameter: This crown is for 3/32. If your axle is 2 mm or 1/8, you need a different reference.
• Not verifying the crown-pinion torque: The angle of the crown must match that of the pinion. Mixing different angles accelerates wear on both parts.

Ideal for…

Preparers working with closed-angle anglewinder motor pods, users of 3D-printed chassis compatible with NSR triangular or RT4, and any enthusiast looking to fine-tune their slot car's transmission without adding unnecessary grams. The green colour facilitates quick identification in the pit when handling multiple crown references.

Frequently asked questions

What is the difference between an 11-degree angular crown and a standard one?

The angle of the teeth determines how the crown and pinion mesh when the motor is tilted relative to the axle. A standard crown (generally with a larger angle or straight teeth) would not mesh correctly with an 11-degree anglewinder pinion, generating noise, friction, and accelerated wear.

Is it compatible with pinions from other brands?

The determining factor is not the brand of the pinion, but that its gear angle is also 11 degrees and that its module is compatible. Check the specifications of the pinion before combining them.

Can I use it on a sidewinder or inline motor pod?

This is not the application for which it is designed. This crown is specific for anglewinder setups with motor pods that work at 11 degrees. In a conventional sidewinder or inline, the engagement would not be correct.

Does the green colour have any technical function?

The colour is an identifying code for the reference, useful for quickly distinguishing between different crowns in the pit. It does not affect the mechanical properties of the part.

Which Sloting Plus pinions does it combine best with?

Sloting Plus offers anglewinder pinions with 11 degrees in various tooth counts to adjust the gear ratio according to the motor and the track. Check the brand's anglewinder pinion catalogue to find the combination that best suits your setup.

The Sloting Plus SP072529 is a Z29 angular crown gear (16.8 mm diameter, 4.25 mm width) with an 11-degree helix angle, designed for anglewinder slot car setups using a 3/32 (2.38 mm) axle. Weighing just 0.6 g, it delivers smooth power transmission with minimal rotational mass. Compatible with NSR triangular motor pods, SC RT4 motor pod, and most 3D-printed chassis engineered for closed-angle anglewinder configurations. A reference choice for club racers and slot car builders looking for precise, reliable drivetrains.