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

The gearbox ran cooler at the same load, the gear mesh bedded in over a wider tooth contact. WS-3B compressor, SE «Zavod UB i VT». Ukraine · 2000. 10.8 %.

SE «Zavod UB i VT» · approved by chief engineer V. S. Korolev; report signed by XADO chief mechanic N. I. Babanskikh and PES lead engineer N. V. Schastlivtsev

Ukraine · report dated 11.09.2000, signatures and seal

PRODUCTXADO RVSrepair-and-restoration compound · treatment of the compressor gearbox

TEST OBJECTWS-3B compressorcompressor gearbox · rated load 60 kgf/cm²

DOCUMENT TYPEReport of SE «Zavod UB i VT»
dated 11.09.2000, with seal

Key result

↓10.8%

oil temperature in the gearbox at rated load, 65 → 58 °C

EQUIPMENT	MEASUREMENT MODE	WHAT WAS MEASURED
WS-3B compressor, gearbox	Rated load 60 kgf/cm²	Oil temperature in the gearbox
WS-3B compressor, gearbox gears	Same mode, before and after treatment	Tooth contact patch area

WS-3B compressor gearbox — before and after treatment

GEARBOX PARAMETER	BEFORE TREATMENT → AFTER TREATMENT
Oil temperature at rated load 60 kgf/cm²	65 °C → 58 °C
Contact patch area of the gear teeth	increased by 10-15 %

The contact patch widened — the load spread over a larger part of the tooth, and friction losses went down.

What the report recorded

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 seal. 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.

The results relate to the gearbox of a WS-3B compressor at a rated load of 60 kgf/cm²; on other equipment and in other operating modes the figures may differ. The original report dated 11.09.2000 with signatures and seal is published in full and available for download. RVS is an obsolete XADO designation, the zero-generation compounds; the current product generation is revitalizants.

Current equivalent

Revitalizant gel for gearboxes →

Industrial gearboxes, final and central drives, truck and tractor gearboxes, open gear and chain drives.

How such units are treated: Reduction gearbox Gear drive

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