Tamiya 94859 JR 13mm Aluminum Ball-Race Rollers Blue  [94859]

Tamiya 94859 - JR 13mm Aluminum Ball Race Rollers - Ringless/Blue
Price:
£8.78
Brand:
Tamiya
Model:
94859
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JR 13mm Aluminum Ball-Race Rollers Blue Edition for Mini 4WD

The Tamiya 94859 JR 13mm Aluminum Ball-Race Rollers combine anodised aluminum bodies with 520 ball bearings to provide smooth, low-resistance rotation. Their 13mm diameter gives consistent contact behaviour at guide points, helping manage speed loss when running close to track walls. They are versatile components suitable for either front or rear installation.

Finished in blue, these rollers suit both Mini 4WD PRO and classic Mini 4WD chassis, offering a tidy visual upgrade alongside practical benefits for hobby racers seeking predictable handling.

How do 520 bearings affect performance?

520 bearings provide a smooth rolling surface with low internal friction, which helps keep rotational losses down and improves consistency during a race.

Are these suitable for high-impact tracks?

The aluminium housings are robust, but frequent heavy impacts can still damage rollers or bearings; inspect after rough runs and replace parts if you detect damage.

What maintenance do they need?

Regularly clean dirt from the bearing surface and apply a small amount of light oil; avoid thick greases that can slow rotation.

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