Yokomo YOKZCS80B Precision Drive Shims - RC Upgrade  [YOKZCS80B]

Yokomo ZC-S80B - Drive Gear Shims
Price:
NZD$3.94
Brand:
Yokomo
Model:
YOKZCS80B
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Shim function and purpose

These RC-scale drive shims are designed to provide accurate control of axial positioning and lateral spacing in model drivetrains. As thin spacer washers, they sit between mating gears or between a gear and its bearing surface to correct slack, prevent binding, and refine gear alignment without swapping major parts.

Fitting is simple on most hobby drivetrains: take off the affected gear, place one or more shims to alter the axial position, then refit and inspect gear mesh while turning slowly. Slight changes in shim thickness can have a clear effect on audible noise, wear behavior, and drivetrain responsiveness, so adjust incrementally and verify clearance after each change.

When tuning, these shims are an economical way to fine-tune engagement to achieve quieter running or reduced backlash. They are intended only for use on model RC drivetrains and for incremental bench or track setup adjustments.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

How do I decide how many shims to use?

Start with a single shim and test mesh; add or remove individual shims until axial play and mesh are acceptable. Small steps give the best control.

Are these shims durable enough for regular use?

Durability varies with material and application; when used to fine-tune mesh they do not carry high loads themselves, but they should be inspected for wear during routine maintenance.

Can I use them for both metal and plastic gears?

They can be used with metal or plastic gears, but check bore fit and how the shim affects mesh with the specific gear materials to avoid unintended wear.

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