Mass-Damper 6mm Precision Replacement M4WD-04/RE by 3Racing  [M4WD-04/RE]

Tamiya Mini 4WD 6mm Damper Ball (red) - 3RACING M4WD-04/RE
Price:
USD$2.50
Brand:
3Racing
Model:
M4WD-04/RE
GTIN:
4895124749647
Please kindly input your name and email address, we will inform you once we have the restocking.
Write a review

M4WD-04/RE 6mm precision damper ball for Mini 4WD mass-damper units

This 6mm steel ball is supplied as a precision replacement for mass-damper assemblies in 1/32 Mini 4WD applications. It is intended for service use and tuning checks where a plain 6mm steel ball is specified.

Inspect retainer geometry and bore tolerance when installing to confirm correct seating and minimal lateral play. The red finish is cosmetic; engineering assessment should focus on roundness, concentricity, and surface finish as these influence wear and damping behaviour.

After fitting, verify smooth rotational movement and secure retention under dynamic conditions. For assemblies using non-standard retainers or damping media, confirm clearances and retention method rather than assuming a drop-in fit.

How do I confirm fitment for this 6mm ball?

Measure the damper bore diameter and inspect retainer form. If the bore is sized for a plain 6mm ball and the retainer secures it without interference, the ball is compatible.

What measurements matter for longevity?

Roundness, surface finish and concentricity are critical. Any deviation increases wear and can alter damping behaviour over time. Check these under a magnifier where possible.

Should I change retainers when replacing balls?

If retainers show wear or deformity, replace them. A worn retainer can allow side play that negates the ball's function in the mass-damper assembly.

Any post-installation checks recommended?

Confirm the ball is retained without lateral movement, cycle the damper to verify smooth operation, and re-inspect after a short test run for signs of abnormal wear.