Frequently Asked Questions & Answers
Standard Machines and Vibration
Question: Please explain the unfiltered vibration limits for standard machines.
Answer: For standard machines mounted resiliently, unfiltered vibration should not exceed the velocity levels shown in the top curve of figure 10a. For example, the limits at rotational frequency are shown in Table 11:
Table 11: Unfiltered Vibration Limits
Speed, rpm |
Rotational Frequency, Hz |
Velocity, in/s peak (mm/s) |
3600 |
60 |
0.15 (3.8) |
1800 |
30 |
0.15 (3.8) |
1200 |
20 |
0.15 (3.8) |
900 |
15 |
0.12 (3.0) |
720 |
12 |
0.09 (2.3) |
600 |
10 |
0.08 (2.0) |
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