Surgical Robotics Manufacturing worked example

Precision Gearbox Yield at 68% target first-pass yield: a worked example

This worked example runs the precision gearbox yield numbers for a tougher week than the baseline: 68% target first-pass yield instead of the typical 95%. Estimate precision gearbox yield for surgical robotics manufacturing using production-ready inputs so teams can track KPI performance and decide whether corrective action is needed.

The inputs for this scenario

  • Gearboxes passing precision inspection: 8 count (held at the documented default)
  • Gearboxes inspected: 250 count (held at the documented default)
  • Target first-pass yield: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Precision gearbox yield rate = precision gearbox yield count ÷ total precision gearbox yield population × 100.
  • Precision gearbox yield rate works out to 3.2 % at these inputs, and this is the headline figure for the scenario.
  • Precision gearbox yield gap to target works out to 64.8 points at these inputs.
  • Precision gearbox yield count works out to 8 count at these inputs.
  • Total precision gearbox yield population works out to 250 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target first-pass yield sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • Use it during incoming inspection, supplier scorecarding, or process-capability reviews of a precision-gear line. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Precision gearbox yield rate: 3.2 % (headline result)
  • Precision gearbox yield gap to target: 64.8 points
  • Precision gearbox yield count: 8 count
  • Total precision gearbox yield population: 250 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Precision Gearbox Yield calculator, set target first-pass yield to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.