| Castrol Optitemp SW 1
High Performance Grease for Wind Turbines
Description
Castrol Optitemp™ SW 1 is a lithium based grease containing a synthetic base fluid and premium extreme pressure
(EP) additives. The wax-free nature of the synthetic base oil and the low coefficient of traction (compared with mineral
oils), provide excellent low temperature pumpability and very low starting and running torque. It can also offer the
potential for energy savings and can reduce operating temperatures in the load zone of rolling and sliding element
bearings. The lithium complex thickener gives excellent adhesion, structural stability, sealing effects and water
resistance. Primarily intended for a wide variety of applications at extremes of temperature, the grease also has a high
level of chemical stability and provides excellent protection against wear, rust and corrosion.
Application
Castrol Optitemp SW 1 is recommended for tough industrial applications especially as encountered in Wind Turbine
Main Bearings, Yaw bearings and Pitch bearings. It gives outstanding bearing protection under high loads at low to
moderate speeds and in applications where water resistance is critical. Castrol Optitemp SW 1 is also recommended
for use in steel and paper mills. Recommended operating temperature range is -40°C to 180°C.
Advantages
Reduced downtime and maintenance costs because of reduced wear, rust and corrosion.
Outstanding high and low temperature performance.
Extended service life with longer intervals between re-lubrication.
Reduced energy consumption due to low traction coefficient.
Ability to perform well in the presence of water.
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Typical Characteristics
Name Method
Appearance
Units Optitemp SW 1
Visual
Homogenous
Colour
Visual
Beige
Consistency
ISO 2137 / ASTM D217
NLGI Grade
1.5
Dropping Point
ISO 2176 / ASTM D566
°C/°F
>260°C/>500°F
Base Oil Viscosity @ 40°C / 104°F
ISO 3104 / ASTM D445
mm²/s
460
Base Oil Viscosity @ 100°C / 212°F
ISO 3104 / ASTM D445
mm²/s
46
Water Wash-out at 60°C/140°F
ISO 11009 / ASTM D1264
%wt loss
<5
Rust Test - EMCOR (Distilled w ater)
ISO 11007 / ASTM D6138
Rating
0/0
Rust Test -EMCOR (1%NaCl solution)
ISO 11007 modified
Rating
0/0
Worked Penetration (60 strokes @ 25°C / 77°F)
ISO 2137 / ASTM D217
0.1 mm
290-320
Four Ball EP Properties, Weld Point
ASTM D2596
Kg Load
315
Four Ball Wear (40 kg,60°c)
ASTM D2266
mm
0.4
Four Ball Wear test - Weld Load
DIN 51350-4A
N
2800
Subject to usual manufacturing tolerances.
Additional Information
In order to minimise potential incompatibilities when converting to a new grease, all previous lubricant should be
removed as much as possible prior to operation. During initial operation, re-lubrication intervals should be monitored
closely to ensure all previous lubricant is purged |
