High Temperature Greases

Conventional greases are not designed to withstand high operating temperatures. At high temperatures, grease oxidation rate is rapid. Due to the presence of thermal energy, significant increase in oil separation and oil evaporation rates are observed. The deterioration rate is higher for greases with base oils that have low viscosity index.  Breakdown of the grease structure and lubricating film would lead to seizure of contact partners and failure of the application.

BECHEM’s range for high temperature applications include greases developed from special Polyurea to advanced PTFE thickeners blended with synthetic as well as special mineral base oils. These high temperature resistant greases possess excellent temperature to consistency behavior. The advanced additive package consisting of anti oxidants and solid lubricants ensure lubrication at elevated temperatures for longer durations, thereby reducing re-lubrication frequency.

For more details, send in your query at sales@bechemindia.com or call us at
+91 80 66900800/01/02.

HIGH TEMPERATURE GREASES

The fully synthetic PFPE/PTFE product is a superior high temperature grease with extended life lubricating characteristics. Berutemp 500 T2 is highly resistant to thermal and chemical decomposition. 500 T2 is compatible with plastic and elastomer materials. Berutemp 500 T2 is NSF H1 approved as well as Kosher and Halal certified.

Applications: Berutemp 500 T2 is recommended for high temperature applications in food and pharma processing industries as well. Some examples are friction elements in wafer biscuit production machines, turning rollers in automotive paint shops, corrugator roll, blister packaging, latex curing oven, segment moulds in tyre industry etc.

ProductThickenerBase OilTemp Range °CSend Your Queries
Berutemp 500 T2

  • Roller
    bearing
  • Food grade / Pharmaceutical technology
  • High Tempratures
  • Compatible with plastics
  • Corrosion protection
  • Resistant to water
  • Noise damping
  • Plain bearings
PTFEPerfluoropolyether– 20 to + 260

Fluorinated grease based on advanced formulation for extreme temperatures and achieved extended re-lubrication intervals. Berutox VPT 64 has excellent thermal and chemical stability as well as good oxidation stability. Berutox VPT 64 is neutral in smell and has excellent compatibility with plastics and elastomer material.

Applications: Recommended for bearings exposed to extreme high temperatures for extended duration. Also recommended for plain and roller bearings in applications such as electric motors, hot air fans, conveyor systems, baking equipment, tyre mould etc. As a life lubricant for automotive components, VPT 64 is recommended to prevent noise caused from vibrations both inside/outside the vehicle. Example: dashboards, seat systems, door modules etc.

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Berutox VPT 64

  • Roller
    bearing
  • Automotive industry
  • High Tempratures
  • Compatible with plastics
  • Corrosion protection
  • Resistant to water
  • Noise damping
  • Plain bearings
PTFEPerfluoropolyether-30 to +260

Synthetic high temperature grease with low evaporation tendency for long life lubrication. Berutemp 170 provides good resistance to water. Possesses good extreme pressure (EP) and anti wear (AW) properties.

Applications: Recommended for plain and roller bearings exposed to extreme high temperatures such as paint shop overhead conveyor trolley bearings, bearings in wafer biscuit production machines etc.

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Berutemp 170

  • High load
  • Automotive industry
  • High Tempratures
  • Resistant to water
  • Roller bearing
  • Plain bearings
PTFESynthetic-20 to +200

Fully synthetic grease for long life lubrication with excellent consistency-temperature behaviour. This high temperature grease also provides excellent resistance to water, chemical and steam ingress. Protects bearings from corrosion.

Applications: Berutox FH 28 KN is recommended for bearings and applications subjected to high temperatures such as drying kilns, conveyor systems, paint shop trolley wheels, hot air fans, annealing furnaces, electric motors etc. Suitable for lubrication of pulp press bearings in paper plants.

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Berutox FH 28 KN

  • Roller
    bearing
  • High load
  • High Tempratures
  • Compatible with plastics
  • Corrosion protection
  • Resistant to water
  • Plain bearings
PolyureaPolyalphaolefin-30 to +180
+200 short term

Fully synthetic high temperature grease for long life lubrication of bearings exposed to elevated temperatures and high loads. This high performance grease has excellent consistency-temperature behaviour. Does not form residues at high temperatures. Berutox FH 28 EPK II has good sealing properties against water and corrosive media. Provides protection against corrosion and wear .

Applications: Berutox FH 28 EPK II is recommended for bearings and applications exposed to high temperatures and loads in cooling beds, rotary kilns, conveyor systems, annealing and drying furnaces, electric motors, hot air fans, gate valves in bulk material container systems etc.

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Berutox FH 28 EPK II

  • High
    load
  • Resistant to water
  • High Tempratures
  • Roller bearings
PolyureaPolyalphaolefin-30 to +180

Synthetic high performance grease with high speed index for high speed applications and spindle bearings. Berutox FB 22 provides long term lubrication even under extreme temperatures and operating conditions. Synthetic PAO base oil in FB 22 ensures extended service life. Smooth structure of FB 22 ensures minimal internal friction translating to reduced start-up torque and therefore less temperature build up. FB 22 provides superior corrosion protection as well as excellent resistance to alkaline coolant attacks. Extreme pressure additives offer good lubrication under medium to high loads and vibrations.

Applications: Recommended for lubricated for life bearings that demand fully synthetic base oil grease. FB 22 is compatible with commonly used sealing and cage materials. Recommended for high speed spindle bearings Example : In machine tools, threaded spindles, toothed gear in small gears, worm gear etc.

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Berutox FB 22

  • High
    speed
  • Low temperature
  • High Tempratures
  • Good pumpability
  • Roller bearings
  • Plain bearings
Barium ComplexPolyalphaolefin-30 to +180

High temperature multipurpose grease for long term lubrication. Beruplex HTA is free from solid lubricants and is apt for use in central lubrication systems.

Applications: This high performance grease is recommended for lubrication of bearings of electric motor, hot air fans, conveyor systems exposed to severe radiation heat, furnaces, converters, pouring ladles, clutch thrust bearing etc. Also recommended for lubrication of bearing guide rollers of continuous caster, hot slab transportation systems in metallurgical plants, circular oscillating sieves, tar mixer etc.

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Beruplex HTA

  • Roller
    bearings
  • High Tempratures
  • Good pumpability
  • Plain bearings
Aluminium ComplexMineral Oil-25 to +190

High temperature grease for long term lubrication, possessing excellent temperature consistency. This heavy duty grease has excellent pumpability for centralised systems. Provides good corrosion protection.

Applications: Berutox M21 KN is recommended for bearings and applications exposed to high temperatures and loads in continuous caster segments, cooling beds, conveyor systems, annealing and drying furnaces etc.

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Berutox M21 KN

  • Roller
    bearing
  • High Tempratures
  • Resistant to water
  • Plain bearings
PolyureaMineral Oil-20 to +180

High performance multipurpose EP grease for long life lubrication. Berutox M21 EPK has excellent sealing qualities with superior resistance to water and steam. Provides excellent corrosion and wear protection.

Applications: Recommended for dryer section bearings and hot air fans in paper plants, precision bearings such as top arm bearings and variator systems of spinning machines in textile industry. Suitable for lubrication of friction partners in door locking systems, hinged joints, wheel hub bearings, shifting linkages and bearings in water pumps of automotive industry. Also recommended for rotor shell bearings of pellet presses.

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Berutox M21 EPK

  • Roller
    bearing
  • Automotive industry
  • High Tempratures
  • High load
  • Resistant to water
PolyureaMineral Oil-20 to +160

Ceritol PSA 12 H has good pumping properties in the context of centralised lubrication systems exposed to thermal radiation. PSA 12 H  possess good corrosion protection properties and provides good resistance to regular as well as aggressive water.

Applications: High temperature grease Ceritol PSA 12 H  is recommended for plain and roller bearings exposed to thermal loads, bearings of dryer section and hot air fans in paper processing industry, guide rollers in slab and billet casters.

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BECHEM Ceritol PSA 12 H

  • Roller
    bearing
  • Automotive industry
  • High Tempratures
  • good compability
  • Plain roller
Special PolyureaMineral Oil-20 to +160

Applications and Properties

The unique pictograms help identify primary characteristics of the lubricant as well as key applications and industries it has been established at a glance. However the final recommendation would still have to be by the BECHEM specialist after having studied application and its operating environment. As the saying goes, ‘every problem has a unique solution, if only, one is looking for it’. This is the core philosophy to our approach towards ‘Application Engineering’ and staying true to ‘speciality’

Roller
Bearing

Food grade /
Pharmaceutical technology

High
Temperature

Compatible
with plastics

Corrosion
Protection

Resistant
to water

Noise
Dampening

Plain
Bearing

High loads

Frequently Asked Questions

You can find all answers here if you need them

The measure of consistency is called penetration. Penetration depends on whether the consistency has been altered by working. Standard test procedures established by American Society for Testing and Materials International (ASTM) and accepted by industry are ASTM D 217 and D 1403, measure penetration of unworked and worked greases.

The NLGI has established consistency numbers ranging from 000 to 6, corresponding to specified ranges of penetration distance of the standard cone into the test grease. Table below lists the NLGI grease classifications along with a description of the consistency of each classification.

The most important feature of a grease is its consistency. A grease that is too stiff may not get pumped into areas requiring lubrication. While a grease that is too fluid may leak out. Grease consistency depends on the type and amount of thickener used and the viscosity of its base oil. A grease consistency is its resistance to deformation by an applied force.

Greases are made by mixing a solid material, called a thickener, with a base oil and property enhancing additives; but it’s the oil that forms the lubrication film. For better understanding, grease thickener can be thought of as a sponge saturated with oil. Moving parts squeeze the oil out of the sponge like thickener for forming the lubrication film. Typically, the base oil constitutes the largest proportion of grease weight at about 80-90%, followed by thickener at 10 to 20% and additives under 10%.

Dropping point of a lubricating grease is an indicator of the heat resistance of the grease. and is the temperature at which the grease is no more a thickened lubricating medium. The dropping point indicates the upper temperature limit at which a grease retains its structure, not the maximum temperature at which a grease may be used.

Few greases have the ability to regain their original structure after cooling down from the dropping point.

Viscosity: It is a measure of resistance to flow of a lubricating oil.

Viscosity index: It is defined as rate of change of viscosity with respect to temperature.

Significance:

  • It is the most important property which determines the performance of lubricating oils under the influence of temperature
  • A lubricating oil should have sufficient viscosity to retain a lubricating film on the surface
  • On machine part moving at slow speeds under high pressures, a high viscous oil should be used as it better resists being squeezed out from between the rubbing parts.  Light oils can be used for lower pressures and high speeds.
  • It is not possible to maintain a liquid oil film between two moving or sliding surfaces if the viscosity is too low and hence excessive wear will occur.

The pour point of an oil is the minimum temperature at which the oil turns into semi solid and almost losses its flow characteristic. At low temperatures, the viscosity of the oil will be very high, causing the oil to resist flow. This is important in equipment that operates in a cold environment or handles cold fluids.

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