0.20mm axle spacers 2.38mm

Tenth Adjustment: The Difference That the Stopwatch Makes

In the preparation of a slot car, the small details make the difference between a loose assembly and one that responds with precision. The SWSP04 axle spacers from Sideways are specifically designed for 2.38 mm axles and have a thickness of 0.20 mm, making them an essential fine-tuning tool to eliminate unwanted axial play in your transmission groups.

Function and Performance

Axle spacers, also known as shims, are placed between the components of the drivetrain —crown gear, pinion, bearings, or chassis— to accurately control the lateral position of the axle. An axle with too much play loses efficiency in power transmission and can generate vibrations that affect both part wear and cornering behaviour.

• Compatible axle diameter: 2.38 mm (3/32")
• Thickness: 0.20 mm per unit
• Brand: Sideways
• Reference: SWSP04

Compatibility

The diameter of 2.38 mm (equivalent to 3/32") is the most widely used standard in the world of competitive slot racing. These spacers are compatible with assemblies that use axles of this size, regardless of the chassis or drivetrain component manufacturer. They are particularly useful in setups with crown gears and pinions adjusted to the millimetre, where any lateral displacement directly affects the engagement.

Installation and Preparation

Placement is straightforward but requires attention: remove the axle, position the spacer in the desired location, and reassemble the unit, ensuring that there is neither excessive play nor tightness that causes friction. By combining several spacers of different thicknesses, you can achieve the exact adjustment needed for each assembly. Having various sizes on the workbench is a common practice among the most meticulous preparers.

Common Mistakes

• Using a single standard thickness without checking the actual play of the assembly: each chassis and bearing may have different tolerances.
• Forgetting to check the spacer after changing the crown gear or bearing, as accumulated measurements may vary.
• Over-tightening: the goal is to eliminate play, not to create additional friction.

Frequently Asked Questions

What is the exact purpose of an axle spacer?

It serves to control the lateral position of the axle within the transmission assembly, eliminating play that could cause vibrations, premature wear of parts, or loss of efficiency in power transmission.

How many spacers are included in the SWSP04 pack?

The provided information does not specify the number of units per pack. We recommend contacting us directly before placing your order if you need a specific quantity.

Is it compatible with axles of other sizes?

These spacers are designed for 2.38 mm (3/32") axles. They are not suitable for axles of different diameters, such as those of 2 mm or 3 mm.

Can I combine several spacers to achieve an intermediate adjustment?

Yes. It is a common practice in slot preparation to stack several spacers of different thicknesses until reaching the exact measurement required for the assembly.

Does Sideways manufacture spacers in other thicknesses?

Sideways offers spacers in various sizes within its range of spare parts and accessories. Check the complete catalogue to find the thickness that best suits your setup.

Sideways SWSP04 axle spacers, 0.20 mm thick, compatible with 2.38 mm (3/32") axles. Essential shims for precision slot car setup, eliminating lateral play in transmission assemblies. Perfect for club racers and serious hobbyists looking for fine-tuning components to improve consistency and lap times.