Hydraulic fluid shear stability

Hydraulic oil for pressure pipe machinery

Find out how hydraulic fluids maintain optimum viscosity in a wide range of operating conditions and temperatures.

Hydraulic fluids must maintain good pumpability at low temperatures and sufficient film strength at high temperatures. The following research examines the viscosity-temperature relationship, the impact of viscosity index improvers at different temperatures and the importance of using a shear stable hydraulic fluid.

Learn more about these shear stability tests:

  • DIN 51382 (The Bosch Injector Test)
  • ASTM D5621 (The Sonic Shear Method)
  • CEC L45-A-99 (The KRL Tapered Roller Bearing Test)

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131 kb PDF in English
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Technical topics
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