Ang Anderon ay isang yunit ng vibration ng bearing na katumbas ng 1 μm/s RMS velocity. Ito ay binuo ng industriya ng bearing (pinangalanan sa Anderson meter) upang sukatin ang vibration ng rolling element bearing sa panahon ng quality checks sa pagmamanupaktura sa karaniwang bilis na 1800 RPM.

ISO 15242 defines methods for measuring vibration of rolling bearings. It specifies three frequency bands: Low (50–300 Hz), Medium (300–1800 Hz), and High (1800–10000 Hz). Each band captures different defect types. ISO 15242 defines the measurement method only — it does not specify acceptance limits.

Ano ang kinakatawan ng mga frequency band?

Low band (50–300 Hz): waviness of raceways. Medium band (300–1800 Hz): surface roughness and minor defects. High band (1800–10000 Hz): micro-defects, contamination, and noise. Acceptance limits for each band are set by the bearing manufacturer or agreed between manufacturer and customer — ISO 15242 does not specify them.

Paano ko ico-convert ang μm/s sa Anderon?

1 Anderon = 1 μm/s RMS velocity. Kaya ang conversion ay direkta: ang sukatan na 50 μm/s = 50 Anderon. Ang sukat ay karaniwang isinasagawa sa 1800 RPM na pag-ikot ng inner ring na may nakaayos na outer ring.

Ano ang karaniwang limitasyon ng Anderon para sa magagandang bearing?

Para sa ABEC-1 (P0) bearing: Mababang band < 50 And, Katamtaman < 40 And, Mataas < 35 And. Para sa ABEC-5 (P5): Mababa < 25 And, Katamtaman < 20 And, Mataas < 15 And. Precision grades have even tighter limits. These are representative industry values, not ISO 15242 limits — always check the bearing manufacturer's acceptance specification for the exact bearing type and size.

Libreng Kagamitan sa Engineering — #030

Bearing Vibration Anderon Calculator

Convert bearing vibration measurements to Anderon units using the ISO 15242 measurement bands. Enter measured vibration velocity for each frequency band and bearing grade to assess quality.

ISO 15242Anderon UnitsABEC Grades

Results

Pangkalahatang Pagsusuri

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Low Band

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Medium Band

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High Band

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Overall (RSS)

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Anderon Unit

Measured at standard speed (typically 1800 RPM inner ring rotation, outer ring stationary).

ISO 15242 Frequency Bands

Band	Frequency Range	Defect Type
Low	50–300 Hz	Waviness, out-of-round
Medium	300–1800 Hz	Surface roughness, minor defects
High	1800–10000 Hz	Mga micro-defects, kalawakan

Representative Anderon Limits (Industry Practice)

Grade	Low	Medium	High
ABEC-1 (P0)	≤ 50	≤ 40	≤ 35
ABEC-3 (P6)	≤ 35	≤ 30	≤ 25
ABEC-5 (P5)	≤ 25	≤ 20	≤ 15
ABEC-7 (P4)	≤ 15	≤ 12	≤ 10
ABEC-9 (P2)	≤ 10	≤ 8	≤ 6

ℹ️ Note: ISO 15242 defines the measurement method and frequency bands only — it does not set acceptance limits. The values above are representative, manufacturer-style guidance; per ISO 15242, acceptance limits are agreed between the manufacturer and the customer. Always consult the bearing manufacturer’s acceptance specifications for your exact bearing type and size.