Lubricating greases, oils exhibiting minimal consistency, vicosity increase at low temperatures provide excellent low-temperature stability. Suitable base oils for low-temperature duty are synthetic esters, PFPE oils and polyalphaolefins. The general criterion defining low-temperature stability is the flow pressure test in accordance with DIN 51 805 or the low-temperature torque test according to IP 186. The temperature at which a flow pressure of 1,400 mbar is generated will be stated as lowest service temperature of our rolling bearing greases.
A grease which shows good low-temperature stability will often perform poorly in high-temperature applications. The automotive industry in particular often requires low temperatures of −40°C (−40°F) while the actual day-to-day operating temperature of the unit is for example +100°C (212°F).
