Searched for "*".

Air bubbles rising up from the oil in the container may form a surface foam which can have a disruptive effect within the hydraulic system. Since surface foam causes cavitation in pumps, it must not b

Surface roughness (roughness depth) refers to the unevenness of actual surfaces based on the material involved and how is has been processed. Surface roughness is largely responsible for the wear expe

Filter which only separates off impurities at the surface of the filter element. Surface filters are designed with pores (gap) of a similar size, which means they can retain certain sizes of particle

The proportion of hydraulic fluid within the total volume of a hydraulic accumulator that can be removed without causing any damage.

Proportion of the time Tb for which a system or device (e.g. pump) is in operation during a specific period of time T s (e.g. a month or year). The duty ratio, besides what is required by way of relia

The effective force F 2eff at the piston shaft for a cylinder . This is derived from the piston area A and the pressure p, having subtracted the friction forces F 2R associated with the seals and guid

Oldest form of elastic seals . They can be used as two lip seals for sealing at the inner and outer ring (Figure N 9 a) or as a single-lip ring with an adhesive section for single-sided sealing. The s

Synonym: zero cut overlap

With machine controls : The option to shift the origin for a coordinate axis in the control to a specified point. The position for the machine zero point remains stored in the control regardless of th

Characteristic whereby a measuring instrument does not change its zero point under external influences (e.g. temperature), even over the long term.