Industrial Gear Oil Buyer's Guide
Manufacturer
Brand Name
ISO Grade
Extreme Pressure
Food Grade (NSF-H1)
Fluid Type
Gear Type
Castrol Optigear BM 220


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Manufacturer: Castrol
Brand Name: Castrol Optigear
ISO Grade: 220
Extreme Pressure: yes
Food Grade (NSF-H1): no
Fluid Type: unavailable
Gear Type: Spur and bevel gears, worm gears
AGMA Grade: 5EP
API Gravity:
Oil Viscosity, Kinematic:
 cSt at 40°C
 cSt at 100°C

218
18.8

Oil Viscosity, Saybolt:
 SUS at 100°F
 SUS at 210°F



Viscosity Index: 95
Flash Point: 235.00
Pour Point: -15.00
Fire Point:
Timken:
Rust Protection
 Test A (Distilled):
 Test B (Salt)

pass
pass
Density, kg/L @ 15°C:
Weld point, kgf:
Castrol OptigearTM BM are solid-free high performance gear oils containing the additive combination Microflux TransTM (MFT). Designed to reduce wear caused by surface fatigue, pitting, spalling, scuffing, scoring or irregularities during running-in period and during normal operations.

Microflux Trans (TRANS=TRiple Action Non-sacrificial Surface engineering) improves friction surfaces to an extent not possible with normal machining processes and conventional Extreme Pressure (EP) lubricants. In a tribological system, the polarized MFT additives instantaneously create a passive film on friction surfaces before friction occurs.

At a given load level, the MFT additives create a resistant protective layer on friction surfaces. Under severe load, components of the MFT 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 MFT are longchained compounds with excellent lubricity and adhesion. The load carrying area is improved and the hydrodynamic lubrication film is easier to maintain. This unique physical-chemical reaction is Castrol surface engineering and achieves a non-sacrificial micro-smoothing of the friction surfaces. The MFT 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.

Optigear BM gear oils are in conformity with and even exceed the requirements of DIN 51517 part 3 CLP and AGMA specifications 9005-D94 for EP Gear Oil.

Advantages
  • Extended life time of machine elements and wear parts, lower maintenance and labour costs by minimised 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 and improvement in operating efficiency.
  • Product consolidation, i.e. simplification and reduction of lubricants and spare parts.
  • Reduction of noise resulting from high frequency stick-slip for "life" lubrication in some applications.
  • Smoothing of existing pittings.
Applications:
In all types of industrial gears, especially operating under extremely heavy loads, where conventional EP oils fail.
  • Long term lubrication under the most extreme mechanical conditions, vibrations and elevated temperatures.
  • Spur and bevel gears, worm gears up to the medium load range
  • 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 and separators).
  • Eccentrics, cam shafts and planetary gears.
  • Variable speed drives (PIV).
  • Sealed gear couplings.
  • In all types of bearings, especially for spherical roller bearings, full complement cylindrical roller bearings and thrust bearings.
  • Circulation systems.




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