Castrol Tribol 4747/220-2
High-temperature grease
Description
CASTROL TRIBOL™ 4747 high-temperature grease with TGOA™ is a clear multi-service lubricant designed to
extend the service life of bearings in heavy-duty applications and at elevated temperatures.
Because of the high base oil viscosity CASTROL TRIBOL 4747 provides a heavier oil film for applications at
slower speeds, higher loads and/or higher temperatures.
The patented TGOA additive technology under those adverse conditions provides for an unsurpassed protection
against friction and wear.
• CASTROL TRIBOL 4747 is formulated from a mixture of high-quality synthetic base oils (PAO & ester) and a
lithium complex thickener.
• In addition to this it contains corrosion inhibitors and antioxidants for long service life.
• The load carrying, antiwear and friction reducing capabilities of CASTROL TRIBOL 4747 exceed conventional
complex greases. High performance is the result of the TGOA additives which, under relatively high specific loads
and related temperatures, promote a non-destructive smoothing of the surface roughness in the micro-range.
• The smoothing effect leads to an increase of the actual load carrying area and reduces friction.
• TGOA additives are very effective in protecting the machined surface of bearings during the critical “running-in”
period.
Good bearing surfaces are essential for long bearing life. If, because of shock loads or stop-and-go operation,
surface roughness peaks redevelop, the TGOA® additive package is automatically reactivated. Surface
roughness is again smoothed and lubrication optimized.
Application
• CASTROL TRIBOL 4747 grease with TGOA is designed as a multi-service lubricant for heavy-duty applications
of rolling and sliding bearings for temperatures up to 160°C (peak temperatures up to 180°C).
• CASTROL TRIBOL 4747 grease should be used when loads are moderate to heavy and speeds are slow to
moderate.
Advantages
• CASTROL TRIBOL 4747 with TGOA offers increased load carrying capability due to higher viscosity base oils
and surface smoothing as well as friction reducing properties of TGOA.
• The lithium complex thickener is characterized by its excellent working and shear stability.
• Excellent thermal stability (dropping point >250 °C).
• The TGOA additives ensure reduced wear, lowered operating temperatures as well as extended service life
leading to decreased maintenance and repair costs.
Page 1 / 2 15 June 2010, Version 1Typical Characteristics
Subject to usual manufacturing tolerances
Additional Information
• CASTROL TRIBOL 4747 grease with TGOA should not be mixed with greases using a different thickener.
• Lubricating intervals should be increased gradually after changing over to CASTROL TRIBOL 4747 to ensure
complete removal of the previous lubricants and to use the TGOA additives to their full advantage. Their
performance might be affected by residual greases containing solid lubricants!
• At peak temperatures of 180 °C relubrication intervals should be established by inspection.
Castrol, Tribol, and the Castrol logo are trademarks of Castrol Limited, used under licence
This data sheet and the information it contains is believed to be accurate as of the date of printing. However, no warranty or
representation, express or implied, is made as to its accuracy or completeness. Data provided is based on standard tests under
laboratory conditions and is given as a guide only. Users are advised to ensure that they refer to the latest version of this data
sheet.
It is the responsibility of the user to evaluate and use products safely, to assess suitability for the intended application and to
comply with all applicable laws and regulations. Material Safety Data Sheets are available for all our products and should be
consulted for appropriate information regarding storage, safe handling, and disposal of the product. No responsibility is taken by
either BP plc or its subsidiaries for any damage or injury resulting from abnormal use of the material, from any failure to adhere
to recommendations, or from hazards inherent in the nature of the material. All products, services and information supplied are
provided under our standard conditions of sale. You should consult our local representative if you require any further
information.
Castrol Limited, Pipers Way, Swindon, Wiltshire SN3 1RE, UK
www.castrol.com/industrial
www.castrol.com/industrial
Castrol Tribol 4747/220-2
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