3.1 x 5 x 0.2mm Shim for R/C Chassis - Yokomo YOKZCS320  [YOKZCS320]

3.1 x 5 x 0.2mm ultra-thin spacer for model cars

This RC-scale shim is built for accurate spacing and small tolerance corrections on model car chassis. The 3.1 x 5 x 0.2mm measurement denotes the shim's exact footprint and thickness used when matching components to control axial clearance or refine gear mesh.

Applications include taking up endplay on shafts, setting the correct preload on bearings, and fine-tuning the engagement between spur and pinion where a tiny thickness change produces noticeable differences. The shim functions as a minimal-height spacer so stack height can be altered without modifying other parts.

To fit, wipe mating surfaces clean, place the shim at the selected interface, then refit the assembly. After each change, confirm smooth rotation and proper engagement, adjusting by single shims until the required clearance and drivability are achieved.