TiN cover axle 50mm x2 - solid

Precision and Hardness at the Limit: Avant Slot's Solid TiN Cover Axles

When we seek to get the most out of our slot car, every gram and every micron counts. The AV20431 axles from Avant Slot are the answer for those who do not want to compromise on transmission: rectified carbon steel with a Titanium (TiN) coating that makes them one of the most durable options on the competitive spare parts market.

Features and Function of the Axle

• Diameter: 2.38 mm
• Length: 50 mm
• Construction: solid, rectified carbon steel
• Surface Treatment: TiN (Titanium Nitride), known as TiN cover
• Weight per unit: 1.7 g (3.4 g per pair)
• Pack Contents: 2 units
• Reference: AV20431 (Avant Slot 20431)

The rectification guarantees an extremely precise geometry, resulting in a smooth and vibration-free rotation. The TiN coating provides a surface hardness far superior to that of untreated steel, significantly extending the axle's lifespan and reducing wear on both the axle itself and the bearings and crown gears it works with.

Behaviour and Performance

A poorly finished or worn axle is a constant source of power loss, vibrations, and imbalances that are particularly noticeable in high-speed configurations. The TiN treatment acts as an armour: the surface becomes extracted, resistant to bearing marks and abrasion from continuous track use. The result is an axle that maintains its dimensions and balance for much longer than a conventional axle.

Being solid, it offers greater rigidity than hollow versions, benefiting the stability of the transmission in cars with demanding configurations or on fast tracks where lateral forces are high.

Assembly and Preparation

The diameter of 2.38 mm is the standard in most competitive slot cars and in a large part of aftermarket chassis. Before assembly, it is advisable to check the alignment of the axle with the bearings and the crown gear to avoid unnecessary stresses. Thanks to the TiN finish, the axle does not require special lubrication on the surface, although it is always recommended to keep the bearings properly greased.

For adjusting the crown gear and pinion, working with the correct clearances is essential: a perfectly rectified axle like this allows for very fine adjustments that would be impossible to maintain over time with a lower quality axle.

Ideal for…

• Preparers and club drivers looking for durability and precision in the transmission.
• Competition on wooden or plastic tracks where vibrations and wear are critical factors.
• High-performance builds where every detail of the mechanics is under control.
• Preventive replacement of worn axles in active competition cars.

Frequently Asked Questions

What real advantage does the TiN treatment offer over an untreated steel axle?

Titanium Nitride (TiN) is a ceramic coating that significantly increases the surface hardness of the axle. This translates into greater resistance to scratching and bearing marks, lower friction, and a notably longer lifespan, especially in intensive competition use.

Is this axle compatible with standard 3/32" bearings?

The diameter of 2.38 mm (3/32") is the most widespread standard in competitive slot racing and is compatible with the vast majority of bearings, supports, and brackets on the market. We always recommend checking the tolerances of the specific chassis before assembly.

Does the solid version weigh more than a hollow version?

Yes. Being solid, the weight per unit is 1.7 g (3.4 g per pair), slightly higher than that of hollow axles. In return, it gains rigidity and stability in the transmission.

How many units are included in the pack?

The AV20431 pack includes 2 units of solid TiN Cover axle 50 mm.

Can it be used in Sidewinder and Inline configurations?

Yes. As it is a rear axle of standard dimensions, it is suitable for both motor configurations, provided that the length of 50 mm is appropriate for the chassis used.

The Avant Slot AV20431 TiN Cover solid axle (2.38 mm x 50 mm, pack of 2) is a high-performance slot car axle made from rectified carbon steel with a Titanium Nitride (TiN) coating. Designed for competitive slot car racing, it delivers exceptional hardness, reduced friction and outstanding durability. Compatible with standard 3/32" bearings and suitable for both Sidewinder and Inline motor configurations. A top choice for club racers and serious builders looking for precision and longevity in their drivetrain.