Yokomo YOKZCS330 3.1 x 5 x 0.3mm Shim for Pin and Shaft Fit  [YOKZCS330]

Fine 3.1 x 5 x 0.3mm shim for tight tolerances

This Yokomo shim is a compact precision part used where minimal axial clearance is needed. The indicated 3.1 x 5 x 0.3mm dimensions refer to inner diameter, outer diameter, and thickness, making it appropriate for delicate adjustments on shafts, pins, and small bearings in model drivetrains and suspension systems.

Apply the shim to remove unwanted endplay, tweak mesh alignment, or build up thickness with multiple shims for finer changes. Installers normally locate the shim between moving elements or between a bearing face and housing so the assembly achieves the intended running clearance without altering larger components.

Fitting is straightforward: slide the shim into place on the shaft or pin, ensure it seats flat and does not cause binding, then operate the mechanism through its full travel. For tuning, change one 0.3mm shim at a time and retest until the handling or axial play meets your preference.