Gear Oils

Castrol Alphasyn PG 150

VISCOSITY - ISO 150

Synthetic gear oils

DESCRIPTION

The Castrol Alphasyn™ PG gear oil range of synthetic lubricants are based on polyalkyleneglycol (PAG) fluids enhanced
with antioxidants, rust inhibitors and Extreme Pressure (EP) additives of high thermal stability.

APPLICATIONS

Alphasyn PG gear oils are primarily intended for use in worm reduction gear boxes, where the low coefficient of friction of
the PAG base fluid improves efficiency and consequently reduces power consumption and operating temperatures. This
is particularly important in applications where sliding contact is high. The use of a PAG base stock provides inherently
high Viscosity Index (VI) and low pour points making these products suitable for use over a wide temperature range.
Alphasyn PG meets the requirements of most OEM’s that allow the use of PAG based gear oils.

ADVANTAGES
  • Low coefficient of friction reduces energy consumption and lowers operating temperatures, this leads to longer oil
    life.
  • Good thermal and oxidative stability provides reliable operation and extended operating life when compared to
    mineral oil based products.
  • Inherently high VI makes the product suitable for operations over a wide temperature range.
  • High load carrying capacity and good wear protection reduces maintenance.
TYPICAL CHARACTERISTICS
Operating temperature Max. 120°C
Viscosity 150 mm/s² at 40°C
Viscosity index 240
Oil type PAG
Product type Lubricating Oils
Applicable to these sectors Aerospace, Automotive Manufacture, Machinery, Metals, Mining
APPROVAL & PERFORMANCE CLAIMS
ADDITIONAL INFORMATION

Normal industrial paints are not compatible with these lubricants. Gearboxes should be left unpainted internally, or
alternatively should be painted with two component coatings such as epoxy resins. Care must be taken that seal
materials are compatible with these lubricants. The recommended materials are nitrile rubber (NBR), silicone (VMQ),
fluoro-silicone rubber (FMQ), and fluoroelastomers (FKM). Incompatible materials are likely to shrink or swell, thus
causing either severe leakage or seizure of the seal. These products are not miscible with mineral oils.

PACK SIZES AVAILABLE
20L208L

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