Competitive 19mm Ringless Roller for Mini 4WD - M4WD-32/PK by 3Racing  [M4WD-32/PK]

Tamiya Mini 4WD 19mm Aluminum Ball -Race Rollers ( Ringless )(Pink) - 3RACING M4WD-32/PK
Price:
USD$6.30
Brand:
3Racing
Model:
M4WD-32/PK
Condition:
Brand New
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Performance-oriented M4WD-32/PK 19mm ringless rollers

These machined 19mm ringless aluminium ball race rollers are engineered for tight-clearance Mini 4WD race builds where reduced flange and outer diameter matter. The ringless architecture lowers lateral profile and can assist in preventing unwanted contact on narrow stabiliser arrangements while the anodised pink shell aids visual matching for team liveries.

Internally the rollers use a ball-seating arrangement in an aluminium housing; precise axial alignment on roller posts is essential to avoid friction points. Employ low-profile fasteners or rivets with shim washers to set lateral float and avoid preload on the ball seating. These rollers are for chassis tuning and appearance rather than transmission improvement.

Suitability: intended for Mini 4WD platforms with 19mm roller acceptance. Confirm post diameter and surrounding clearances on your chassis prior to installation to achieve reliable rotation and consistent performance on race layouts.

What is the main benefit of ringless rollers in a race setup?

Ringless rollers reduce outer profile and contact points, which helps on tight-clearance sections and when trying to eliminate incidental rubbing on stabilisers.

How should I set lateral play for best performance?

Use thin washers or engineered shims to achieve minimal lateral play without preload; the roller must rotate freely while remaining stable under corner loads.

Is there a recommended fastener type to avoid loosening?

Low-profile screws or rivets with thread-lock where appropriate work well; avoid over-tightening which can compress the ball seating and increase friction.

Can these be used on both front and rear roller positions?

Yes, provided the chassis accepts 19mm diameter rollers in those positions and there is sufficient clearance from adjacent components.

Do these rollers require specific bearing maintenance?

Regular light cleaning and occasional lubrication of the ball seating will keep rotation smooth; avoid heavy oils that attract dust or grit.