2 Teflon bushings diameter 2.5

Teflon bushings for 2.5 mm axle: less friction, more precision

In the preparation of a slot car, the smallest mechanical details often define the difference between a car that runs smoothly and one that loses energy along the way. The 2.5 mm diameter Teflon bushings are one of those elements that, once incorporated into your setup, you cannot understand how you could do without them.

Function and performance

Teflon (PTFE) is one of the materials with the lowest coefficient of friction available. Installed as a bushing between the axle and the bearing or chassis, it acts as a sliding support surface, virtually eliminating direct metal-to-metal friction. The result is a freer, quieter axle rotation with less energy loss transmitted from the motor.

This pack includes 2 Teflon bushings with an inner diameter of 2.5 mm, a common size for rear and front axles in various 1/32 scale slot car setups.

Compatibility and installation

The 2.5 mm Teflon bushings are commonly used in:

• Rear axles of 2.5 mm in setups with sidewinder, inline, or anglewinder motors.
• Front axles where play and friction reduction is desired.
• Machined bearings and axle supports for this diameter.

Installation is straightforward: the bushing fits into the hole of the bearing or support, and the axle passes through it. No additional lubrication is required due to the intrinsic anti-friction properties of Teflon, although a minimal amount of silicone oil never hurts.

Installation and preparation: practical tips

For correct installation, ensure that the diameter of the housing in the bearing or chassis matches the outer diameter of the bushing. A fit with slight pressure is ideal: neither loose (which would cause the bushing to rotate with the axle) nor overly tight (which could deform the Teflon and reduce its effectiveness). If the housing has a very loose fit, a few tenths of cyanoacrylate glue on the outside of the bushing before installation will solve the problem.

Common mistakes

• Confusing inner diameter with outer diameter: the 2.5 mm diameter refers to the inner diameter, through which the axle passes. The outer diameter will vary depending on the model; always check the housing before installation.
• Mixing with ball bearings indiscriminately: Teflon bushings are an excellent solution for axles with low or moderate axial load. For axles subjected to greater lateral demands, ball bearings may be more suitable.
• Not cleaning the housing before installation: grease or dirt residue in the housing can prevent a proper seating of the bushing.

Frequently asked questions

What is the purpose of a Teflon bushing in a slot car?

It serves as a sliding support surface for the axle, reducing friction between the metal axle and the chassis or bearing. The result is a freer rotation and a more efficient power transmission from the motor to the wheels.

Do I need to lubricate Teflon bushings?

Teflon already has self-lubricating properties, so it is not strictly necessary. However, a minimal drop of silicone oil on the axle can extend the life of the bushing and further smooth the rotation.

Are they compatible with any slot car brand?

They are compatible with any setup that uses 2.5 mm diameter axles and whose housing in the bearing or chassis accepts the outer diameter of these bushings. It is common in setups with cars from brands like NSR, Slot.it, Scaleauto, or Avant Slot, among others.

How long do Teflon bushings last?

They have a considerable lifespan, especially in recreational or club racing applications. In intensive competitive use, it is advisable to check them periodically and replace them if any play or visible wear is observed.

Can I use them on the front axle as well as the rear?

Yes, as long as the front axle diameter is 2.5 mm and the housing is compatible. It is a common practice in carefully prepared setups that aim to minimize any friction points in the car.

Teflon bushings 2.5 mm diameter for slot car axle preparation — pack of 2 units. Compatible with 1/32 scale slot car builds using 2.5 mm axles. Reduces friction, improves axle rotation efficiency, and enhances overall performance on the track. Ideal for club racing, home layout setups, and precision slot car tuning with brands like NSR, Slot.it, Scaleauto and Avant Slot.