Pareto Analysis - Motor Vibration Defects

80 / 20 QUALITY ANALYSIS

Metric: Frequency of observed motor vibration causes, April-May 2026 · Total observations: 100.00

Bars rank causes by frequency; line shows cumulative contribution.

80% focus line

Causes contributing most to the problem

Rotor imbalance34 occurrences · 34.0%

Bearing preload21 occurrences · 21.0%

Mounting alignment17 occurrences · 17.0%

Sensor variation11 occurrences · 11.0%

Management insightPrioritize corrective action on the first causes that push cumulative contribution toward 80%.

Sorted automatically from highest to lowest frequency

7 causes

#	Cause	Frequency	Contribution	Cumulative	Remarks
1	Rotor imbalance	34.00	34.00%	34.00%	—
2	Bearing preload	21.00	21.00%	55.00%	—
3	Mounting alignment	17.00	17.00%	72.00%	—
4	Sensor variation	11.00	11.00%	83.00%	—
5	Loose fastener	8.00	8.00%	91.00%	—
6	Assembly handling	5.00	5.00%	96.00%	—
7	Other	4.00	4.00%	100.00%	—

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