Yokomo YOKZCS330 Shim 3.1 x 5 x 0.3mm  [YOKZCS330]

3.1×5×0.3mm precision shim

This Yokomo shim is a small-scale R/C accessory designed to provide controlled spacing where fine clearance matters. The 3.1×5×0.3mm dimensions define its inner diameter, outer diameter, and thickness, making it suitable for tight tolerance adjustments on shafts and pins used in model drivetrains and suspension linkages.

Use this shim to eliminate endplay, correct mesh alignment, or stack with other shims for incremental changes. Because the part is intended for R/C model assemblies, installers typically position the shim between rotating components or between a bearing and housing to achieve the desired running clearance without altering major components.

Installation is straightforward: slide the shim onto the shaft or positioning pin until it seats flat, confirm there is no binding, and check the assembled movement through the full range of travel. For tuning, change thickness by adding or removing shims in small steps until the desired feel or axial play is achieved.