IE S036REPORT OF THE YALTA WASTEWATER TREATMENT PLANT
TV-176/1.6 air blower: bearing play in the blower and in the motor decreased
Clearances in the unit and motor bearings narrowed, the geometry of the parts recovered. 39–67 % — radial play of the blower bearings, 0.18–0.28 → 0.06–0.17 mm; 2.7× — radial play of the electric motor bearing, 0.16 → 0.06 mm (2004).
with signatures and the enterprise seal
Key results
| EQUIPMENT | BEARING HOURS BEFORE TREATMENT | WHAT WAS MEASURED |
|---|---|---|
| TV-176/1.6 air blower unit, 1000 m³/h | 7500 h against an average service life to replacement of 8000 h — 94 % used up | radial play of the front and rear bearings (2314, oil bath) |
| A-113-2 electric motor, 320 kW | 3500 h against an average service life to replacement of 5000 h — 70 % used up | radial play of the front bearing (3222 and 222, grease) |
Radial bearing play — before treatment and after 450 hours of operation
| ASSEMBLY | PLAY BEFORE | PLAY AFTER 450 H | REDUCTION |
|---|---|---|---|
| TV-176/1.6 unit, front bearing | 0.28 mm | 0.17 mm | 0.11 mm · 39 % |
| TV-176/1.6 unit, rear bearing | 0.18 mm | 0.06 mm | 0.12 mm · 67 % |
| A-113-2 electric motor, front bearing | 0.16 mm | 0.06 mm | 0.10 mm · 62.5 % |
Measurements were taken before the treatment on 14.09.2004 and repeated after 450 hours of unit operation.
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:
Limits of this report: The results relate to the TV-176/1.6 air blower unit with the A-113-2 electric motor at the Yalta wastewater treatment plant; on other equipment and under different operating conditions the figures may differ.