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 where 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
ƒ shortens running-in periods and allows running-in of lubrication surfaces  under full load from the start
ƒ outstanding load carrying capacity
ƒ optimum wear protection in high load range
ƒ excellent anti-wear properties
ƒ smoothing of existing pitting
ƒ surface improvement to an extent not possible before
ƒ increase of supporting surfaces and load carrying capacity (70 - 80% after initial run-in)
ƒ reduction of noise levels
ƒ extreme long oil drain intervals
ƒ low foaming tendency
ƒ extremely low coefficient of friction resulting in energy savings
ƒ compatible with nonferrous metal
ƒ compatible with paints and conventional seal materials
ƒ excellent corrosion protection
ƒ exceeds AGMA specifications 250.04 for EP gear oils

Usage
In all types of industrial gears, especially operating under extremely heavy loads,  even where conventional EP oils fail:
ƒ 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
ƒ eccentrics, cam shafts, planetary gears
ƒ variable speed drives (PIV)
ƒ 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
ƒ extended lifetime of machine elements and wear parts, lower maintenance and labor costs by minimized wear and friction
ƒ full load operation within shortest time, virtually eliminating the running-in  period
ƒ lower costs for lubricants and waste oil disposal because of significant  extensions of both service life and relubrication intervals
ƒ energy savings due to reduced coefficient of friction, lower temperature of  lubricant and component, improvement in operating efficiency
ƒ product consolidation, i.e. simplification and reduction of lubes and spare  parts
ƒ reduction of noise resulting from high frequency stick-slip
ƒ 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.