Product Data
Castrol Optigear® BM
Castrol Optigear BM- solid-free gear oils for extremely high pressures containing a newly developed additive combination. Designed to reduce wear caused by surface fatigue, pitting, spalling, scuffing, scoring or irregularities during running-in period also wher conventional EP gear oils or oils with solid lubricants fail.
MICROFLUX TRANS® (TRANS=TRiple Action Non-sacrificial Surface engineering) improves friction surfaces to an extent not possible with normal machining processes and conventional EP lubricants. In a tribological system the polarized MICROFLUX TRANS additives instantaneously create a passive film on friction surfaces before friction occurs. At a given load level, the MICROFLUX TRANS additives creates resistant protective layer on friction surfaces. Under severe load, components of the MICROFLUX TRANS additive combination are activated and diffuse into the surfaces initiating an improvement of their friction characteristics through plastic deformation. The organic reaction products become a component of the tribopolymer system. Unlike the case with conventional lubricants, the tribopolymers formed by MICROFLUX TRANS are long-chained compounds with excellent lubricity and adhesion. The load carrying area is improved, a hydrodynamic lubrication film is easier to maintain. This unique physio-chemical reaction is CASTROL surface engineering and achieves a non-sacrificial micro-smoothing of the friction surfaces. The MICROFLUX TRANS additive technology provides optimum wear protection and an extremely low coefficient of friction even under extremes of pressure, vibration, shock loads, at high or low speeds or varying operational conditions.
Advantages
shortens running-in periods and allows running-in of lubrication surfaces under full load from the start
outstanding load carrying capacity
optimum wear protection in high load range
excellent anti-wear properties
smoothing of existing pitting
surface improvement to an extent not possible before
increase of supporting surfaces and load carrying capacity (70 - 80% after initial run-in)
reduction of noise levels
extreme long oil drain intervals
low foaming tendency
extremely low coefficient of friction resulting in energy savings
compatible with nonferrous metal
compatible with paints and conventional seal materials
excellent corrosion protection
exceeds AGMA specifications 250.04 for EP gear oils Castrol Industrial Americas
150 W. Warrenville Road
Naperville, IL 60563
Tel (877) 641 1600
Fax (877) 648 9801
Castrol Optigear BM – 3-Sep-04
Page 1 of 3
Product Data
Usage
In all types of industrial gears, especially operating under extremely heavy loads, even
wher conventional EP oils fail:
gears exposed to high sliding friction and high Hertzian surface pressures up to 2000
N/mm2 (elevators, rolling mills, belt conveyors, extruders, vibrating equipment,
crushers, high speed looms, rear axles, separators
eccentrics, cam shafts, planetary gears
variable speed drives (PIV)
hypoid gears (API-GL5/GL6)
In all types of bearings, especially for spherical roller bearings, full complement
cylindrical roller bearings, thrust bearings
For sealed gear couplings
Cost-benefit offered by MICROFLUX TRANS additive technology
extended lifetime of machine elements and wear parts, lower maintenance and labor
costs by minimized wear and friction
full load operation within shortest time, virtually eliminating the running-in period
lower costs for lubricants and waste oil disposal because of significant extensions of
both service life and relubrication intervals
energy savings due to reduced coefficient of friction, lower temperature of lubricant
and component, improvement in operating efficiency
product consolidation, i.e. simplification and reduction of lubes and spare parts
reduction of noise resulting from high frequency stick-slip
for "life" lubrication in some applications
Application
Viscosity recommended by equipment manufacturers must be followed. Miscible with all
unleaded gear oils based on mineral oils.
Maximum performance only if applied unmixed.
Castrol Optigear BM oils can be filtered in all common filter systems and separators due
to their homogeneous, oil soluble additives.
Attention: Not for use in synchronized gears and for limitedslip/self-locking differential
gears.
MICROFLUX TRANS® registered trade mark of a patented Castrol additive combination
for performing surface engineering in tribological systems.
Castrol Industrial Americas
150 W. Warrenville Road
Naperville, IL 60563
Tel (877) 641 1600
Fax (877) 648 9801
Castrol Optigear BM – 3-Sep-04
Page 2 of 3
Castrol Industrial Americas
150 W. Warrenville Road
Naperville, IL 60563
Tel (877) 641 1600
Fax (877) 648 9801
Castrol Optigear BM – 3-Sep-04
Page 3 of 3
Product Data
Typical Characteristics
Unit
68
100
150
220
320
460
680
1000
3000
Color
-
brown
brown
brown
brown
brown
brown
brown
brown
brown
ISO viscosity group
68
100
150
220
320
460
680
1000
3000
AGMA
-
3 EP
4 EP
5 EP
6 EP
-
-
-
-
Specific gravity @ 60°F
g/cm3
0.88
0.89
0.89
0.90
0.91
0.91
0.92
0.92
0.91
Kin.viscosity, @ 40° C/104°F, ASTM D-445
mm2/s
71.3
101
157
218
320
459
670
1000
3000
Kin.viscosity,@ 100° C/212°F
mm2/s
9.4
11.4
15.0
18.8
24.3
30.6
37.8
50.0
122
Viscosity index,
ASTM D-2270
VI
109
99
95
97
97
96
94
95
117
Flash Point, COC,
ASTM D-92
°C
219
224
224
232
238
238
238
260
260
°F
425
435
435
450
460
460
460
500
500
Pour Point, ASTM D-97
°C
-24
-24
-18
-16
-15
-12
-9
-9
0
°F
-11
-11.2
-0.4
+3.2
+5.0
+10.4
+15.8
+15.8
+32
Copper corrosion 48h/100°C/212°F
ASTM D-130
-
1a
1a
1a
1a
1a
1a
1a
1a
1a
SRV? test run
Test mode 5 ae(2h, 300N, 50°C/122°F/ball/area)
DIN 51834
Friction coefficient
μ (min)
0.030
0.030
0.030
0.030
0.025
0.025
0.025
0.025
0.025
Friction coefficient(running in period)
μ (max)
0.130
0.130
0.130
0.130
0.130
0.130
0.130
0.130
0.130
Wear
mm
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
ball/scar ∅
μm
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
FZG
Boundary lubrication A/8, 3/90
DIN 51345
Damage load stage mg/
>12
>12
>12
>12
>12
>12
>12
>12
>12
Seal compatibility Volume change
SRE-MBR1
%
-2.5
-2.5
-2.5
-2.5
-2.5
-2.5
-2.5
-2.5
-2.5
Shore hardness
Shore
+3
+3
+3
+3
+3
+3
+3
+3
+3
Subject to usual manufacturing tolerances.
All reasonable care has been taken to ensure that this information is accurate as of the date of printing. Nevertheless, such information may be affected by changes in the blend formulation occurring subsequent to the date of printing. Material Safety Data Sheets are available for all Castrol products. The MSDS must be consulted for appropriate information regarding storage, safe handling and disposal of a product.
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