WS-3B compressor: gearbox runs cooler, tooth contact bedded in

The commission of SE “Zavod UB i VT” together with the chief mechanic of the XADO company drew up a report stating that “before treatment of the compressor with the repair-and-restoration compound, at the rated compressor load of 60 kgf/cm², the oil temperature in the gearbox was 65°C, and after treatment — 58°C. At the same time, the contact patch area of the gearbox gear teeth increased by 10–15%”. The report was approved by the plant's chief engineer and certified with a stamp. Both measurements were taken at one and the same load, so the temperature drop relates to the condition of the gear train itself, not to the machine's operating mode. In service this means a milder thermal regime for the oil and less wear of the gear mesh at the same load on the compressor.