Castrol Optigear BM
Gear oils with MFT
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 long-
chained 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.
In all types of industrial gears, especially operating under extremely heavy loads, where conventional EP oils fail.
• Long term lubrication under the most extre