KNOWLEDGE

Bearing Noise and Vibration

Noise and Vibration Detection matched to Bearing Noise and Vibration requirements

Bearing Noise and Vibration Detection:

Bearing noise and vibration – important metrics for bearing quality

Usually we use instrument S0910-1 to detect the noise of ball bearings.
We devide bearing noise into four levels: Z1, Z2, Z3, and Z4.
The higher the level, the lower the noise.

While for bearing vibriation, we use the instrument BVT-1 to detect.
We divide bearing vibration into four levels: Z1, Z2, Z3, and Z4.
The higher the level, the smaller the vibration.

Noise Levels Parameter Table:

Bearing Diameter SO901-1(dB)
Z1 Z2 Z3 Z4
3 34 32 28 23
4 34 32 28 23
5 36 34 30 25
6 36 34 30 25
7 38 35 31 26
8 38 35 31 26
9 40 36 32 27
10 42 38 33 28
12 43 39 34 29
15 44 40 35 30
17 44 40 35 30
20 45 41 36 31
25 46 42 38 33
30 47 43 39 35
35 49 45 41 36
40 51 46 42 38

Vibration Levels Parameter Table:

Diameter V (um/s) V1 (um/s) V2 (um/s) V3 (um/s)
d
mm Low Frequency Middle Frequency High frequency Low frequency Middle Frequency High frequency Low Frequency Middle Frequency High frequency Low Frequency Middle Frequency High Frequency
3,4 80 44 44 60 35 32 48 26 22 31 16 10
5,6 110 72 60 74 48 40 58 36 30 35 21 11
7,8,9 130 96 80 92 66 54 72 48 40 44 28 12
10,12 160 120 100 120 80 70 90 60 50 55 35 15
15 210 150 120 150 100 85 110 78 60 65 46 18
17 210 150 120 150 100 85 110 78 60 65 46 25
20 260 190 150 180 125 100 130 100 75 80 60 25
22,25 260 190 150 180 125 100 130 100 75 80 60 32
28 260 190 150 180 125 100 130 100 75 80 60 40
30,32 300 240 190 200 150 130 150 120 100 90 75 40
35 300 240 190 200 150 130 150 120 100 90 75 45
40 360 300 260 240 180 160 180 150 130 110 90 50
45 360 300 260 240 180 160 180 150 130 110 90 60
50 420 320 320 280 200 200 210 160 160 125 100 70

Is Bearing Accuracy Standard Related to Noise Level?

Generally, the accuracy of bearings has nothing to do with the noise level. They are two different grade standards.
As long as we measure bearing accuracy according to rotation accuracy and dimensional accuracy. While we judge noise by the decibel value of the abnormal sound during rotation. One is size and the other is decibel value.
Therefore, bearing accuracy standard has nothing to do with noise level.

Questions that help before the next bearing decision after Bearing Noise and Vibration

Which next options usually help after reviewing Bearing Noise and Vibration?

Most buyers benefit from one broader family destination, one more commercial route, and one supporting guide that answers the next practical question. That combination usually turns research into a clearer shortlist.

Why add related bearing destinations beside Bearing Noise and Vibration?

Because the first answer often leads to a second question about fit, applications, supplier choice, or repeat-order confidence. Keeping those next destinations close reduces unnecessary backtracking.

When is it worth moving from reading into a quote or product review?

That move usually makes sense once the topic has narrowed the likely bearing family and the remaining unknowns are commercial, dimensional, or application-specific rather than purely educational.

What usually makes the next bearing decision easier after Bearing Noise and Vibration?

The process is often easier when the wider family view, the more commercial destination, and one practical guide stay visible together. That keeps the decision grounded in both application detail and buying reality.

Buyer FAQ

Questions buyers ask before choosing the next bearing option

What is the main takeaway from Bearing Noise and Vibration?

The main takeaway is that bearing noise and vibration should be checked against the bearing family, dimensions, load direction, speed, and operating conditions instead of relying on the title or size alone.

When should I use this guide before requesting a quote?

Use the guide when you are comparing bearing models, checking suffix meanings, confirming seal or clearance choices, planning maintenance, or preparing details for replacement, production, or OEM sourcing.

How does this topic connect to bearing supply?

The topic supports the Bearing Supply decision path by helping buyers understand fit, performance, specification details, or maintenance factors before choosing a product page or contacting the team.

Can this guide replace a final specification check?

No. The guide helps prepare the decision, but a final check should still confirm the part number, dimensions, load, speed, seal, clearance, precision, application, and order quantity.

What should I send if I need help after reading this guide?

Send the bearing number, measured size, photos if available, application, quantity, and any special operating conditions. That gives the team enough context to recommend the right product family or quote route.

Need help checking fit, price, or lead time? Request a bearing quote