Архив рубрики: Thermostable greases

VNIINP-207

The grease VNIINP-207 (GOST 19774-74 and amendment 1, 2, 3, 4) is a mix of an organic silicon liquid and synthetic hydro carbonic oil, thickened oil complex soap; contains an antioxidizing additive.
The basic operational characteristics: Waterproof, water absorbing, the raised thermo oxidizing stability, is efficient at residual pressure 666.5 Pas and temperatures from -60 °С…+200 °С. Application: bearings of a rolling of electric machines and starters-generators with frequency of rotation to 10000 mines-1.
Appearance and color: Homogeneous soft ointment from light brown to dark brown color
Effective viscosity, Pas, at -30 °C, not more than: 1400
Strength at 20 °С, Pas, not less than: 68.6
Drop temperature, °С, not lower than: —
Colloid stability under load of 300 g, %, not more than: 6
The content of free alkali in recalculation on NаОН, %, not more than: 0,15
Penetration at 25 °С, mm, 10-1: 220-250 u
Evaporation at 200 °С within 5 hours, %, not more than: 7,0
Data on operational temperatures represent values, which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mechanical-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.

VNIINP-219

The VNIINP-219 (GOST 38.101471-74) composition is similar to the grease VNIINP-207 but unlike it contains a molybdenum disulfide. The basic operational characteristics: it is efficient at temperatures from -50 °С…+200 °С.
Application: bearings of a rolling of electric motors and starters-generators with the raised loadings and frequency of rotation to 9000 mines-1, ball-screw gears of flying machines.
Appearance and color: Homogeneous soft ointment from dark grey to black color
Effective viscosity, Pas, at -50 °C, not more than: 800
Strength at 50 °С, Pas, not less than: 120
Drop temperature, °С, not lower than: 200
Colloid stability under load of 300 g, %, not more than: 7
The content of free alkali in recalculation on NаОН, %, not more than: 0.08
Penetration at 25 °С, mm, 10-1: 280-360
Evaporation at 200 °С within 5 hours, %, not more than: —
Data on operational temperatures represent values, which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mechanical-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.

VNIINP-235

The grease VNIINP-235 (TOR 38.101297-78) is an organic liquid thickened with an organic thickening agent. The basic operational characteristics: viscosity of grease slightly depends on speed of deformation. It possesses the high thermal and low colloid stability, good antiscuffing properties.
It is efficient at residual pressure 666.5 Pas and temperatures from -60 … +250 °С. Application: rolling bearings.
Appearance and color: Homogeneous ointment of smooth structure of black color
Effective viscosity, Pas, at 40 °С, not more than: 126
Effective viscosity, Pas, at -50 °C, not more than: 1.3
Strength at 80 °С, Pas, not less than: 290
Drop temperature, °С, not more low: —
Colloid stability under load of 300 g, %, not more than: 6.5
The content of free alkali in recalculation on NаОН, %, not more than: —
Penetration at 25 °С, mm, 10-1: —
Evaporation at 200 °С within 1 hour, %, not more than: 0.8
Data on operational temperatures represent values, which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mechanical-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.

Grafitol

The grease Grafitol (TOR 38 USSR 201172-77) is a petroleum residual oil. It contains graphite.
The grease Grafitol possesses high thermal stability, low evaporation, good antiscuffing properties, satisfactory water resistance. It is efficient at temperatures from -25 … +160 °С. Application: high-temperature friction assemblies, mainly slidings; hot fans, loops locks of drying chambers doors and other industrial mechanisms. A substitute product is Aerol.
Appearance and color: —
Effective viscosity, Pas, at 0 °С, not more than: 300
Effective viscosity, Pas, at -40 °C, not more than: —
Strength at 20 °С, Pas, not less than: 350-700
Drop temperature, °С, not lower than: 250
Colloid stability under load, %, not more than: 8
The content of free alkali in recalculation on NаОН, %, not more than: —
Penetration at 25 °С, mm, 10-1: 265-295
Evaporation at 150 °С, %, not more than: —
Data on operational temperatures represent values, which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mechanical-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.

PFMS-4S

Grease PFMS-4S (TU 6.02.917-79) is a polymethylphenylsiloxane fluid solidified with colloid graphite.
The basic operational characteristics: at flow characteristics have it  a intermediate position between greases and pastes. Grease PFMS-4S possess the raised antiscuff properties, high thermal stability and low vaporability. It is efficient at temperature -30°С…+300°С, it is short-term to +400°С.
Scope: aviation friction units, slow-speed bearings of a rolling, screw ball transfers, carvings.

Appearance and colour: Viscous unctuousblack weight
Viscosity effective, Па.с, at 50°С, no more: —
Viscosity effective, Па.с, at-30°C, no more: —
Strength at 20°С, the Pas, not less: —
Drobfall temperature, °С, not more low: —
Colloid stability at loading, %, no more: —
The content of free alkali in recalculation on NаОН, %, no more: —
Penetration at 25°С, mm, 10-1: —
The content of water, %, no more: Absence
Vaporability at 300°С within 1 hour, %, no more: 16
Reaction of environment (рН a water extract): 6-8

Data on operational temperatures represent values which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mehaniko-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.