IE A097MEASUREMENT REPORT ON BEARINGS No. 3636
Centrifuge bearings: clearance restored, vibration and noise down
The bearing units moved out of pre-overhaul condition, clearance decreased, the machine ran quieter. 64–68 % — bearing housing vibration, 190 and 110 → 60 and 40 µm (2001).
restorative repairapproved by the plant's chief mechanic, chief mechanic's department stamp
Key results
| OBJECT | CONDITION AT START OF WORK | WHAT WAS MEASURED |
|---|---|---|
| Bearing No. 3636, 1st | Housing vibration 190 µm — unit due for repair | Radial clearance, housing vibration |
| Bearing No. 3636, 2nd | Housing vibration 110 µm | Radial clearance, housing vibration |
| Centrifuge as a whole | Oil pressure 2.8 atm, noise level 95.5 | Oil pressure, noise level |
Bearing units No. 3636 — measured unit by unit
| PARAMETER | BEARING 1st | BEARING 2nd |
|---|---|---|
| Radial clearance, before → after | smaller by 3.3× | smaller by 3× |
| Housing vibration, µm | 190 → 60 (−68 %) | 110 → 40 (−64 %) |
Measurements taken on 20.07.2001 and 29.08.2001 for each bearing unit; the clearance reduction and the vibration drop were obtained on both.
Centrifuge mechanism as a whole
| PARAMETER | BEFORE TREATMENT 20.07.2001 | AFTER TREATMENT 29.08.2001 |
|---|---|---|
| Oil pressure, atm | 2.8 | 2.95 |
| Noise level | 95.5 | 88.0 |
Oil pressure and noise were measured on the machine as a whole, not on individual units; the noise level unit is given exactly as recorded in the report.
Report conclusion
Current equivalent
Revitalizant gel for compressors and bearings →
Piston, screw and centrifugal compressors; rolling and sliding bearings running in an oil bath; machine-tool spindle units and slideways.
How such units are treated:
About this result:
Limits of this report: The results refer to bearings No. 3636 of the caustic soda production centrifuge in shop 107 of Pervomaisk SE “KHIMPROM”; on other units and duty cycles the figures may differ.