New demands on hydraulic pumps and motors reveal a need for improvement
Battery-electric mobile machines are good examples of where and how hydraulic-pump applications will evolve in the near future. The rapidly growing demands will have to be met with variable-speed drives. Originally designed and…
The benefits of black oxide finish for rolling bearings
Black oxide finish for rolling bearings. Benefits in theory and practice. For corrosion protection and decorative purposes, black oxide finish has a long tradition. In order to facilitate the application of this technology…
New Tapered Roller Bearing with fourth generation low friction torque technology
Koyo Bearings, a division of JTEKT Corporation, is introducing its new range of “LFT IV” Low Friction Torque tapered roller bearings providing further reduction of the friction torque, reaching a similar level as…
A soft pneumatic actuator to be used as finger of a collaborative robot
Michele Gabrio Antonelli, Walter D’Ambrogio, Francesco Durante – Università degli Studi dell’Aquila (Italy) To satisfy the new requirements of collaborative robotics, not only in industrial ambit but also in the field of medicine and…
Eco-Efficiency thanks to ECO’nergy
Eco’nergy is the recovery system of hydraulic energy patented by the french Manu Lorraine. Advantages? Significant and appreciable on hydraulic excavators of different sizes. Hydraulic excavators rank among the main protagonists in the…
Walvoil SXP combines advantages of both Series and Parallel circuits
WALVOIL SXP, the innovative directional valve for front loaders and other lifting applications. Walvoil SXP is an innovative directional valve designed for front loaders and other lifting applications. The main feature of new…
Standard Samples for Grinder Burn Etch Testing
Jonathan R. Crow and Michael A. Pershing, Caterpillar, Inc. This paper discusses a unique method of producing a sample for grinder burn etch testing. The method of producing the sample is described, and…
How characterizing the efficiency of agricultural machines
When speaking of quantification of the efficiency of a system, we mean the calculation of its thermodynamic efficiency, defined as the mathematical ratio between the input energy, i.e. the energy entering the considered…
Electric mobility, not only cars
The future mobility will be increasingly electric, for agricultural machines, too. Carlo Gorla, Politecnico di Milano DRITEV are the initials that this year identify the maxi-convention that VDI, the association of German engineers,…
Analysis of the kinematic chain for the motion transmission from the tractor to a rotary harrow
The present article illustrates the study of the kinematic chain between tractor and rotary harrow used for the motion transmission from the PTO to the tool. The study has focused also on the…
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