Precision adjustment within reach with NSR 1.2 mm eccentric bearings
Within the NSR spare parts catalogue for 1/32 scale, eccentric bearings are one of those small components that make a real difference in the car's behaviour. This pack includes 2 eccentric bearings with an eccentricity of 1.2 mm, designed to accurately adjust the height of the rear axle relative to the chassis and, thereby, modify the pressure on the tyres and the centre of gravity of the assembly.
Function and performance
The eccentric bearings allow for controlled variation of the rear axle position without the need to machine or modify the chassis. By rotating the bearing in its housing, the axle rises or falls slightly, which directly affects:
- The chassis height above the track and the weight distribution.
- The grip of the rear tyres, by modifying the vertical load on the axle.
- The cornering behaviour, especially on tracks with elevation changes or variable grip.
The eccentricity of 1.2 mm provides a sufficient adjustment range to notice perceptible changes on track without compromising the overall stability of the vehicle.
Compatibility
These bearings are designed for NSR chassis compatible with this diameter and eccentric mounting system. Before installation, it is advisable to verify that the chassis housing accommodates eccentric bearings and that the 1.2 mm measurement corresponds to the adjustment range you are looking for. NSR offers different eccentricities in its range, so it is recommended to have them on hand to compare adjustments based on the track.
Installation and preparation
The installation is straightforward: the bearing fits into the chassis housing and is oriented in the desired position before securing the axle. For systematic adjustment, it is advisable to mark the initial position and make changes of a quarter turn to assess the effect on track before moving to more extreme positions. A good test bench and a few warm-up laps are sufficient to notice the difference.
Common mistakes
- Mixing bearings of different eccentricities on the same axle, which creates asymmetry and imbalance.
- Over-tightening the housing, hindering the free rotation of the axle.
- Not checking the outer diameter of the bearing before purchase: each chassis has its tolerances.
Frequently asked questions
What is the difference between a standard bearing and an eccentric one?
A standard bearing keeps the axle always in the same relative position to the chassis. The eccentric one, on the other hand, allows for slight displacement of that position when rotated, which opens up the possibility of adjusting the height of the rear axle without modifying the chassis.
For what type of track is this adjustment most useful?
The adjustment with eccentrics is particularly useful on tracks with low grip or elevation changes, where fine-tuning the rear load can make the difference between a car that slides and one that has good traction. It is also used in club racing to adapt the car to different track conditions.
Can I combine this bearing with other NSR components?
Yes, as long as the chassis and axle are compatible with NSR eccentric bearings. It is advisable to always work within the same brand's ecosystem to ensure consistent tolerances.
How many units are included in the pack?
The pack includes 2 eccentric bearings of 1.2 mm.
Are special tools needed for installation?
In most NSR chassis, installation does not require special tools, although having a small wrench or bearing removal tool facilitates the process and prevents damage to the parts.
NSR 1/32 eccentric bearings 1.2mm, pack of 2 — precision rear axle height adjustment for slot car tuning. Compatible with NSR chassis systems. Essential setup component for club racing and competitive slot car preparation.