Finke Aviaticon - Germany Motor Oil - Finke Oil Team

INDUSTRIAL TRANSMISSION OILS
A distinction must be made between closed and
open gearboxes. Closed gearboxes contain various
types of cogwheels which are serviced by a central
or splash lubrication system. Transmission oils and,
in special cases, transmission greases are generally
used as lubricants.
Opengears generally use spur gears which are often
serviced with loss lubrication.
Lubricants are mainly required to:
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Prevent wear on cogwheels
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Minimise friction
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Dissipate heat
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Prevent idle time corrosion
For this to occur, a lubrication film must form between
the toothed flanks. For this purpose, special
transmission oils, transmission greases and adhesive
spray lubricants are formulated. These lubricants
can be unalloyed or alloyed, and also contain
additives.
Mineral or synthetic oils can be used as base oils for
transmission oils.
Additives are matched to operating conditions. The
following types of additives may be used:
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Anti-wear (AW) and anti-seizure (EP) additives
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Friction modifiers
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Oxidation inhibitors
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Corrosion inhibitors
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Foam inhibitors and much more.
Transmission greases (semi-fluid greases) are used
in the industry for reducing gears and geared motors.
Spray adhesive lubricants are used for lubricating
open gearboxes (e. g. chain drives). The classification
of industrial transmission oils according to DIN
51517 is as follows:
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C transmission oils
Unalloyed mineral oils for low service life and load
requirements
··
CL transmission oils with oxidation and corrosion
inhibitors for longer service life
··
CLP transmission oils with oxidation and corrosion
inhibitors for longer service life and anti-wear
and anti-seizure additives for low wear
For industrial transmission oils, ISO VG classes apply.
Lower ISO VG (22-68) classes are mainly used
in high-speed gearboxes, whereas transmission oils
with higher ISO VG (220-680) classes are usually
used for the majority of systems.
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