JR OLIO POLIGLICOLE

Description
The OLIO POLIGLICOLE oils are fully synthetic
industrial gear oils based on special, newly
developed polyglycol base oils. Thus the OLIO
POLIGLICOLE products offer a very high oxidation
and temperature stability. Polyglycols have a very
good viscosity- temperature-behaviour (high natural,
shear-stable VI) and can therefore be used within a
wide temperature range (depending on the viscosity
grade and the working conditions from
– 35 °C up to 160 °C). Special additives adapted to
these polyglycols further improve the good
properties of the base oils – high wear protection,
excellent corrosion protection also at the presence
of condensation water, low foaming, very good
compatibility with non-ferrous metals.
The excellent anti-wear properties could be proven
in different tests with OLIO POLIGLICOLE. The
load stage
> 14 was passed in the standard FZG test (FZG
A/8.3/90), and the load stage > 12 was passed in the
FZG test A/16.6/140 (high speed, high temperature
FZG test). OLIO POLIGLICOLE has a high
micropitting resistance – load stage “high” – and a
good pitting resistance. OLIO POLIGLICOLE was
tested in a special “low speed” FZG test (according
to DGMK (Deutsche Wissenschaftliche Gesellschaft
für Erdöl, Erdgas und Kohle e.V.) – FZG scuffing
test) which OLIO POLIGLICOLE passed with
excellent results (wear category: “low” = excellent).
This special test shows the excellent wear protection
of OLIO POLIGLICOLE at twodifferent temperatures
(90 °C and 120 °C) under mixed and boundary
lubrication conditions. The lubricating film remains
stable even at high pressures and under mixed
friction conditions

Benefits / Advantages
 Excellent wear protection
(high scuffing load carrying capacity)
 Excellent low speed wear protection
(DGMK: C/0.05/90:120/12)
 High resistance to micropitting
 Excellent roller bearing wear protection (FE8)
 Increase of efficiency, reduction of temperature
– low friction coefficient
 Excellent viscosity-temperature behaviour
(high VI)
 For use at high and low operating temperatures
 High ageing stability
 Good corrosion protection
 Excellent air release properties
 Low foaming

Description (continued)
Thus the friction coefficient is low, and a
temperature reduction by up to 20 °C can be
achieved compared with mineral oil-based
lubricants.
Efficiency tests in a worm gear test rig demonstrated
the high performance and the low friction coefficient
which is especially of great importance for the use in
worm gears. The results of OLIO POLIGLICOLE in
the FE8roller bearing wear test were excellent. Tests
in a special test rig at the University of Munich (FZG
Institute – Forschungsstelle für Zahnräder und
Getriebebau) led to excellent results regarding
antiwear behaviour and efficiency.
Note
OLIO POLIGLICOLE is not miscible and compatible
with mineral oils, ester oils and polyalphaolefins.
When changing between polyglycols from different
manufacturers, the compatibility has to be checked.
Before changing-over, it is recommended to clean
the system and to flush with OLIO POLIGLICOLE.
The compatibility with elastomers, varnishes and
coatings should also be checked before changing
from mineral oil to polyglycols.
Use of OLIO POLIGLICOLE in combination with oil
gauge glasses made of polycarbonates and
plexiglass might lead to stress-cracking corrosion
under tension. The use of natural glass or polyamide
materials is recommended.
The specifications of the roller bearing and gear
manufacturers have to be observed. In general
these oils should not be used for dynamic frictional
contact with aluminium.
Application
The OLIO POLIGLICOLE gear oils are mainly
suitable for the lubrication of gear units and worm
gears / roller bearings and friction bearings which
are subject to high mechanical and thermal stress.
Especially in applications with high sliding velocities
(e.g. worm gear units) the OLIO POLIGLICOLE oils
offer advantages compared with mineral oil-based
gear oils. Due tothe high oxidation stability, the oil
change intervals can be extended and the
maintenance costs can be reduced also at higher
operating temperatures. The use of OLIO
POLIGLICOLE in worm gears (steel-bronze pairing)
leads to a significant reduction of friction andwear.
The OLIO POLIGLICOLE products can also be used
for paper machines, calenders, conveying machines
and milling bearings. Peak temperatures of up to
200 °C are temporarily tolerable.
Specifications
The OLIO POLIGLICOLE products fulfill and exceed
the minimum requirements according to:
– DIN 51517-3:
– ISO 6743-6 and ISO 12925-1: CKC / CKD / CKE /
CKSMP/ CSPG / CTPG*
– AGMA 9005/E02: EP
Among others, the OLIO POLIGLICOLE products are
approved by:
– Flender GmbH, BA 7300, table A
– Alpha Getriebebau
– SEW

Recommendations / method of changing
over from mineral oil-based fluids to
OLIO POLIGLICOLE.
General recommendations / procedure in
conjunction with the recommendations of the
bearing and gear manufacturers (according to
VDMA Guideline 24 569 and ISO CD 15380).
1. Drain the existing lubricating oil while warm.
2. Carefully drain all circuit components, pipes,
pumps, and if necessary, clean mechanically.
Pipes should be drained and cleaned with the
help of air. Make sure that the system is free of
any residual fluid.
3. Elastomers (seals, pipes and hoses), filter
materials, zinc-coated components, paints, all
inner materials which are normally compatible
with mineral oil should be checked with regard to
their compatibility with polyalkylene glycol.
4. A flushing and cleaning procedure is
recommended to reduce any residual mineral oil
content. The system should be filled with the
minimum oil volume which is necessary to
operate the system. The cleaning and flushing
time depends on the conditions of the whole
system (e.g. contamination with ageing products,
contamination with oxidation layers, dirt, water,
etc.).
5. After the cleaning and flushing procedure the
fluid should be drained off – if necessary clean
mechanically. Refill the unit with fresh OLIO
POLIGLICOLE.
6. Mineral oil has a lower specific density than OLIO
POLIGLICOLE. Residual mineral oil will lie on top
of the surface of the tank. This mineral oil can
then be absorbed from the surface.
7. It is recommended to check the filters of the unit
after some days. OLIO POLIGLICOLE has a high
polarity. Contaminants, ageing products from
former mineral oil will be absorbed by OLIO
POLIGLICOLE. These contaminants can be
filtered out in thesystem filters.
The recommendations of the manufacturer of the
system / unit should be observed regarding the oil
change intervals. The condition of the used oil can
be checked by oil analyses.