Multiplication hydrostatic transmission for small hydroelectric plant. In the paper has been described power transmission from the low rotary turbines and water wheels to power generator. It is shown the conception of use the variable multiplication hydrostatic transmission to control the ratio depending on the rotational speed of the turbine or water wheel.

Research grinding spindle with hydrostatic radial-axial bearing. The paper presents the results of theoretical analysis and experimental tests of the spindle grinding. In the front support there was used integrated axial-radial bearing and in the back support – radial one. It has been studied no rotating spindle displacement under static forces.

Selection of bearings for gas compressors. The paper describes the possibility of using the process gas as medium in the bearings of natural gas compressors. The turbine and compressor unit used for gas extraction plants and hydrodynamic bearings has been presented. The criteria for selection of appropriate bearings for gas compressors have been pointed out.

Circular flow of liquid fuel in the tanks of the spacecraft. The paper describes the experimental tests of fuel flows in the tanks of the spacecraft. The nature and volume of the flow have been examined. Effect of Reynolds number on the nature of these flows has been established.

Pneumatic cylinder recovery. The article contains description of pneumatic cylinders renovation, used in ironworks machines. Problems with repairs of cast iron cylinders were presented and applications of plastics material (POM) for new piston inserts were shown. Old guide-sealing elements were replaced with modern polymer materials. There were also introduced non-lubricated wiper rings made of PE-UHMW.