Is one Anderon equal to one micrometre per second?

No. Sugawara documents 1 Anderon ≈ 7.698 μm/s for 1800 r/min with the stated L, M and H bands. The relation is tied to those measurement and bandwidth-normalization conditions.

Does ISO 15242 set universal acceptance limits?

This tool does not claim universal ISO acceptance limits. Acceptance criteria require the exact bearing, test conditions and agreed manufacturer/customer specification.

Can I use ordinary machine vibration readings?

Not automatically. Values must be RMS radial outer-ring velocity from matching band-pass filters and compatible bearing-test conditions. General installed-machine vibration is a different measurement context.

Why is there no overall RSS or pass/fail result?

The three values are separately bandwidth-normalized band results. This converter has no sourced universal rule for combining them or grading a bearing.

Free Engineering Converter — #030

Anderon Band Converter

Convert compatible RMS radial velocity measurements for the L, M and H bands to Anderon values under the documented 1,800 r/min test condition.

1 And ≈ 7.698 μm/s1,800 r/min ConditionISO 15242-2 Context

Converted Band Values

L Band

—

M Band

—

H Band

—

Condition-Specific Factor

1 And ≈ 7.698 μm/s

Condition-specific conversion

Anderon ≈ v_band,RMS / 7.698

Sugawara defines Anderon from radial displacement density differentiated by rotation angle, band-pass filtered, expressed as an RMS quantity and normalized by the square root of passband octaves. For 1,800 r/min and its L/M/H division from 50 to 10.8 kHz, it gives 1 Anderon ≈ 7.698 μm/s.

Measurement context

Band	Sugawara frequency range at 1,800 r/min
L	50–300 Hz
M	300–1,800 Hz
H	1,800–10,800 Hz

Sugawara unit definition och current analyzer band documentation provide the numerical relation and bands.

ISO scope

ISO 15242-1:2015 specifies fundamentals and calibration under established conditions. ISO 15242-2:2015 covers specified radial ball bearings with cylindrical bore and outside surface; it is not a general installed-machine severity standard.

No grading: no ABEC-based thresholds, PASS/FAIL decision or overall RSS is applied. Use the exact bearing test specification and agreed acceptance limits.