Home>Bearing knowledge>The magnitude of the mechanical shaft vibration is divided into four levels.

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The magnitude of the mechanical shaft vibration is divided into four levels.

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In the diagnosis of equipment; oscillating measurement is one of the commonly used methods; generally, the measured vibration level is in a certain scale in the specification to judge the operation of the equipment. The current comparison of prestige diagnosis is measured by the world standardization arrangement ( ISO); the relevant specification for shaft vibration is ISO7919-3; the relevant specification for shell vibration is ISO10816-3; the national standard of China is also formulated with reference to the specification. In the ISO7919-3 specification; The magnitude is divided into four levels; the following is converted according to the speed:
Speed ​​r/min A/B area gap μm B/C area gap μm C/D area gap μm
Factory inspection limit alarm limit stop limit 3000 88 165 241
1500 124 232 341
1000 152 285 417
Clarify:
Area A: Newly delivered machines generally fall into this area.
Zone B: Machines that oscillate in this zone are generally considered to be tolerable; they can operate for long periods of time without restriction.
Zone C: Oscillation The long-term operation of the machine in this area is generally considered to be unsuitable. Generally speaking, the machine can operate under this condition for a period of time until there is a suitable repair opportunity.
Area D: Oscillation at this scale generally assumes that the condition is serious enough to cause damage.

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