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Office & Industrial

4x11x4 mm Miniature Deep Groove Ball Bearing Steel Skateboard Bearings 694ZZ 694Z 619/4 Pack of 10

Office & Industrial4.7· 204 Amazon ratings

Bias-adjusted across 204 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Office & Industrial.

90.1%
Percentile · Global
83.2%
Percentile · Cohort
Office & Industrial
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4x11x4 mm Miniature Deep Groove Ball Bearing Steel Skateboard Bearings 694ZZ 694Z 619/4 Pack of 10

How the score was built

Amazon ratings
204

used for the Bayesian percentile

Raw star average
4.7 / 5

unadjusted Amazon mean

Bayesian avg
4.57

raw rating shrunk to the category prior

Reviewer-graph z
0.577

bias-corrected vs. each reviewer's baseline (0 qualifying)

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Same category · Office & Industrial

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