Grease № 158 (TU 38.101320-77) is a petroleum oil solidified with litievo-kalievym soap of acids of castor oil and rosin, contains an antioxidizing additive and an indanthrene.
The basic operational characteristics: good antioxidizing and mechanical stability, antiwear characteristics, water resistance satisfactory.
It is efficient at temperature-30 … +110°С. The Scope: bearings of a rolling of the autotractor equipment, needle bearings of cardan joint of changeable angular speed.

Appearance and colour: Ointment from dark blue to dark blue colour
Viscosity effective, Па.с, at 0°С, no more: 400
Strength at 80°С, the Pas, not less: 160
Drobfall temperature, °С, not more low: 150
Calendar stability, in % of the allocated oil, no more: —
Mass fraction of free alkali in recalculation on NаОН, %, no more: 0,1
Penetration at 25°С, mm, 10-1: 265-320
Mass fraction of water, %, no more: Traces

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.