16 tooth pulley 3mm

Belt Drive for Raid and Rally: The Perfectly Fitting 16-Tooth Sprocket

The Sloting Plus PSP-16D3 sprocket is designed for those seeking a clean and efficient belt drive in their Raid and Rally chassis builds. With 16 teeth and MXL pitch, it works in perfect harmony with belts of that standard, offering a precise and backlash-free coupling that translates into smooth power delivery from the motor to the axle.

Main Features

• Number of Teeth: 16 t
• Belt Pitch: compatible with MXL belts (pitch 2.032 mm)
• Axle Diameter: 3.00 mm
• Material: lightweight aluminium, machined from a single piece
• Reference: PSP-16D3

Function and Performance

Belt drive systems are particularly valued in Raid and Rally chassis because they reduce transmission stiffness and better absorb terrain irregularities or sudden load changes. The belt acts as a damping element, protecting the motor and improving stability on fast sections.

Being machined from a single piece of aluminium, this sprocket exhibits very high concentricity: there are no joints or inserts that could misalign the rotation under load. The lightweight aluminium keeps the weight to a minimum, a relevant factor when aiming for proper chassis balance.

Compatibility

This sprocket is compatible with MXL pitch belts, the most common standard in belt drive systems for Raid and Rally slot car chassis. For correct installation, it is necessary to combine it with the appropriate pitch and length MXL belt, as well as the corresponding driving sprocket of the same pitch.

The 3.00 mm axle diameter is the most widespread in steel axles for 1/32 scale slot cars, making installation straightforward in most builds of this type of chassis.

Installation and Preparation

The installation does not require special tools: simply insert the 3.00 mm axle and secure the sprocket with the corresponding set screw, ensuring it is well aligned with the driving sprocket to avoid premature wear on the belt. It is advisable to check the belt tension before the first tests: neither excessively tight —which would load the bearings— nor too loose, which would cause tooth skipping under hard acceleration.

Ideal for…

This spare part is designed for builders and enthusiasts who assemble or maintain Raid and Rally chassis with MXL belt drive. It is also useful as a replacement when the original sprocket shows wear on the tooth flanks, something that can occur after many hours of running, especially if the alignment has not been perfect.

Frequently Asked Questions

What is the difference between a single-piece aluminium sprocket and one with an insert?

Sprockets machined from a single piece exhibit greater concentricity and strength, as there is no risk of the insert loosening or misaligning with use. For competition applications, they are always the preferred option.

Is it compatible with any MXL belt?

Yes, as long as the belt has MXL pitch (2.032 mm) and the width is compatible with the profile of the sprocket. The length of the belt will depend on the centre distance of your chassis, so it should be selected based on the specific build.

Can I use this sprocket on a chassis that is not Raid or Rally?

Technically yes, as long as the chassis employs an MXL belt drive system with a 3.00 mm axle. However, this type of drive is particularly common in Raid and Rally chassis, which are the builds for which it is optimised.

How often should I check the sprocket?

It is advisable to inspect the teeth after each intense running session. If you notice asymmetric wear on the flanks, check the alignment between the driving sprocket and this axle sprocket before replacing it, as the problem often originates from poor alignment rather than natural wear of the part.

The Sloting Plus PSP-16D3 is a 16-tooth MXL timing pulley for 3.00 mm axles, precision-machined from a single piece of lightweight aluminium. Designed for Raid and Rally slot car chassis with belt drive systems, it delivers smooth and reliable power transmission. Compatible with standard MXL belts, this pulley is a go-to choice for slot car builders and enthusiasts looking for accurate, low-maintenance drivetrain components.