Yokomo YOKZCS305 - Shim 3.1 x 5 x 0.05mm for RC  [YOKZCS305]

Fine-tuning shim for tight clearances

This RC-scale shim measures 3.1 x 5 x 0.05mm as stated in the product name and serves as a thin spacer for precise clearance adjustments in model assemblies. Use it where accurate, repeatable increments are required to set bearing preload, align gear mesh, or correct shaft endplay without the need to machine parts.

Fitting is simple: lay the shim on the shaft or mating face before assembling the adjacent component, verify total stack thickness with a feeler gauge or caliper if available, then tighten fasteners to the specified torque while avoiding crushing the shim. Multiple shims can be combined to achieve intermediate thicknesses; keep contact faces clean to prevent trapped debris from altering clearances.

As a generic accessory, this shim suits common R/C locations such as axle interfaces, gearbox stacks, servo horn seating, and bearing endplay adjustments. Handle and store it carefully since it is a very thin, delicate spacer.