Anderson je jedinica vibracije ležaja jednaka 1 μm/s RMS brzina. Razvila ga je industrija ležaja (nazvana po Anderson mjerjaču) kako bi se kvantificirala vibracija valjkastih ležaja tijekom provjere kvalitete proizvodnje na standardnoj brzini od 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.

Šta predstavljaju frekvencijski opsezi?

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.

Kako konvertujem μm/s u Anderson?

1 Anderon = 1 μm/s RMS velocity. So the conversion is direct: a measurement of 50 μm/s = 50 Anderon. The measurement is typically performed at 1800 RPM inner ring rotation with outer ring fixed.

Koje su tipične Anderson granice za kvalitetne ležaje?

Za ABEC-1 (P0) ležaje: Niski opseg < 50 And, Srednji < 40 And, High < 35 And. Za ABEC-5 (P5): Niski < 25 And, Srednji < 20 And, High < 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.

Besplatan inženjerski alat — #030

Kalkulator vibracija ležaja Anderson

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

Ukupna procjena

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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

Mjereno pri standardnoj brzini (obično 1800 RPM rotacija unutrašnjeg prstena, vanjski prsten nepomičan).

ISO 15242 frekvencijski opsezi

Band	Frekvencijski raspon	Defect Type
Low	50–300 Hz	Valjenost, nekruglost
Medium	300–1800 Hz	Hrapavost površine, sitni defekti
High	1800–10000 Hz	Mikro-defekti, kontaminacija

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.

Kalkulator Vibracije Ležaja Anderson | ISO 15242 | Besplatni Mrežni Alat

Published by admin on Februar 15, 2026 Juli 2, 2026

Results

Anderon Unit

ISO 15242 frekvencijski opsezi

Representative Anderon Limits (Industry Practice)

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