3Racing M4WD-03/RE Red M6.4 x 1.7 Bearing Spacer for Tamiya Mini 4WD  [M4WD-03/RE]

Tamiya Mini 4WD M6.4 X 1.7 Ball Bearing Spacer (red) - 3Racing M4WD-03/RE
Price:
USD$2.50
Brand:
3Racing
Model:
M4WD-03/RE
Condition:
Brand New
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Technical overview for competitive setups

The Tamiya Mini 4WD M6.4 X 1.7 ball bearing spacer in red by 3Racing is a precision component intended to secure consistent axial spacing in bearing assemblies. It assists in maintaining optimal bearing seating to support low friction rotation under racing loads.

Engineering and compatibility

Manufactured for compatibility with a range of Tamiya Mini 4WD axle arrangements, the spacer aids accurate alignment between bearings and hubs. Correct spacing reduces side load and uneven contact, which prolongs bearing service life and keeps drivetrain resistance minimal.

Performance tuning considerations

When tuning for lap time, this spacer is useful for removing small variances in bearing placement that can affect wheel balance and free spin. Combine with calibrated bearings and proper axle tolerances to extract repeatable performance gains.

What tolerances matter when using this spacer?

Axle diameter, shoulder depth and bearing inner race tolerance all influence spacer performance. Verify parts are within spec to avoid binding or excess play.

How should it be integrated into a race setup?

Use the spacer to set consistent bearing spacing, then validate wheel runout and lateral play. Fine tune with shims or bushings if required for optimal balance.

Recommended maintenance for longevity?

Keep the spacer and bearings clean and lightly lubricated. Inspect for wear and replace if tolerance drift is detected to maintain predictable handling.