Castrol Longtime PD
High performance bearing grease
Description
Castrol Longtime™ PD range are lithium based greases containing highly refined mineral oils and fortified with the
Microflux Trans (MFT) additive system. 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 micro-smoothing of the 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, a hydrodynamic lubrication film is easier to maintain. This unique physio-chemical reaction achieves a
non-sacrificial micro-smoothing of the friction surfaces.
Application
Longtime PD can be used for long term or lifetime lubrication even under the most difficult operating conditions
such as extreme pressure, vibrations, shock loads and a wide temperature range in highly loaded rolling and
sliding bearings. They can also be used in bearings of spinning and grinding spindles, for gear motors exposed to
shock loads, in screening/wood shaping machines and for bearing surfaces of printing plates.
These greases are also suitable for bearings with a rotating outer ring and undergoing high stresses due to
centrifugal load, e.g. in spreader rolls, roll neck bearings in steel mills, and for bearings with changing rotational
directions or slewing movements. They are also used in curved teeth couplings and centralised lubricating
systems.
Longtime PD 0 and PD 00 can be used as a semi-fluid grease lubricant in gears such as flange, drum-type and
worm gears. It is also suitable for use in gears without oil-tight enclosures, gear wheels and rolling bearings with a
grease reservoir.
Advantages
High load bearing capacity – extends the operating period under high loads leading to optimum wear
protection
•
Superior lubrication and surface smoothing effects due to MFT reduced failures leading to less downtime
and repair work. MFT can result in prolonging the life of damaged components/bearings
•
Establishment of a protective layer of MFT – this additive system can effectively increase the load bearing
area, thus reducing unit pressures, operating temperatures and wear, increasing service life of both parts
and lubricant
•
• Improved bearing surfaces for longer service life result from the ‘running in’ effect of MFT
• Extremely low coefficients of friction – generating energy savings and reduced noise levels
Multi-functional – Longtime PD 0 and PD 00 are highly recommended for anti-friction bearings with grease
reservoir and for leaky gearboxes
•
Easily pumpable in central lubrication systems – does not channel on gears running at high speeds when
using PD 0 and PD 00
•
Exceptional water resistance – coating film stays on the surface even in presence of water; even when
exposed to the action of hot and chemically active process water