Why can uptime and yield not exceed 100 percent?

Both are shares of the gross units the stand runs. A value above 100 would claim more available time or more first-pass units than the cycle count can produce, so V2 blocks it.

What is the difference between the two loss rows?

Downtime loss is gross units the stand never tested because it was not available. Retest loss is tested units that failed the first pass, so they need another run or teardown.

How do I raise accepted capacity fastest?

Compare the loss rows. Downtime loss is usually the larger number, so a maintenance or changeover fix on the stand moves accepted units more than a yield program.

Does the target check test durability?

No. The capacity target counts accepted units only. The stand checks noise and vibration characteristics, and bearing or gear life needs its own fatigue evaluation.

Bearings, Gears & Power Transmission calculator

Noise Test Capacity Calculator

Find the good units a noise-test run accepts before the schedule starts. Available cycles, stand uptime and first-pass yield set the count, and the target flags a capacity miss early.

What this calculator does

Accepted noise-test capacity from stand cycles, uptime and first-pass yield, checked against a unit target.

Formula used

Gross units tested = units per cycle × available noise-test cycles
Accepted capacity = gross units × stand uptime ÷ 100 × first-pass yield ÷ 100
Units lost to stand downtime = gross units × (100 − uptime) ÷ 100
Units needing retest or teardown = gross units × uptime ÷ 100 × (100 − yield) ÷ 100
Shortfall to target = target accepted units − accepted capacity

Inputs explained

Units Tested per Cycle: Units loaded on the noise stand each cycle, from the cell standard.
Available Noise-Test Cycles: Cycles the stand can run in the period, from the capacity plan.
Noise-Test Stand Uptime: Measured stand availability, from the OEE or downtime log.
First-Pass Noise-Test Yield: Share of tested units that pass without retest, from the quality log.
Target Accepted Units: Accepted units the schedule needs, from the production plan.

How to use the result

Best suited to planning a week of noise tests, checking stand capacity before a launch, quantifying uptime loss on the stand.
Capacity only; the test checks the noise and vibration characteristic, not durability. Yield covers first-pass results, so a retest that later passes still counts as a loss.

Current U.S. benchmarks

The U.S. has 21,668 machinery manufacturing establishments employing about 1,086,146 workers (Census County Business Patterns, 2023).

Common questions

Why can uptime and yield not exceed 100 percent? Both are shares of the gross units the stand runs. A value above 100 would claim more available time or more first-pass units than the cycle count can produce, so V2 blocks it.
What is the difference between the two loss rows? Downtime loss is gross units the stand never tested because it was not available. Retest loss is tested units that failed the first pass, so they need another run or teardown.
How do I raise accepted capacity fastest? Compare the loss rows. Downtime loss is usually the larger number, so a maintenance or changeover fix on the stand moves accepted units more than a yield program.
Does the target check test durability? No. The capacity target counts accepted units only. The stand checks noise and vibration characteristics, and bearing or gear life needs its own fatigue evaluation.

Last reviewed 2026-10-01.