Yokomo YOKZC206C - 3mm Aluminum Collar  [YOKZC206C]

3mm aluminum collar for spacing

The Yokomo YOKZC206C 3mm aluminum collar is an R/C-scale spacer intended for general use across model chassis and drivetrains. Its purpose is to establish and maintain consistent axial gaps between components such as bearings, gears and other rotating parts, helping to reduce lateral play and improve assembly repeatability.

Installation is straightforward: position the collar where axial clearance must be controlled, then secure the surrounding hardware as per the platform’s existing assembly method. The part works as a passive spacer rather than a fastening device, so final fixing depends on the model’s original screws, set screws or retaining hardware.

For tuning, use this collar to make small, measurable changes to gear mesh and bearing preload without re-machining or shim-stacking; it’s useful when you want a repeatable gap for setup testing or race-day adjustments on scale electric model cars.