FIELD: hydraulic units used for positive-displacement hydraulic drives of open and closed hydraulic systems. ^ SUBSTANCE: proposed hydraulic unit includes hydraulic motors mounted on reduction gear housing. Gears mounted on shafts of hydraulic machines are kinematically linked with central gear of drive shaft located in reduction gear housing. Drive shaft is mounted in two bearings which are located in reduction gear housing on either side from central gear. First bearing is mounted on side of surface of reduction gear through which drive shaft passes and second bearing is mounted on opposite side of central gear. Reduction gear housing is provided with breather mounted in such way that its outlet hole is located between second bearing and outer surface of reduction gear housing. Axial and radial passages made in drive shaft under second bearing are used for communication of interior of reduction gear housing in area of gears with cavity of reduction gear on side of second bearing where reflector is mounted. Reflecting surface of this reflector is located between outlet hole of breather and second bearing. ^ EFFECT: avoidance of oil leakage from reduction gear housing through breather. ^ 2 dwg
