Technical terms per letter "R"
Rail-laying car is a special trolley which can replace railway tracks
Reducing gear (mech.) is a device that converts and transmits the torque, designed with one or more mechanical gearboxes, that usually changes angular velocities upward and downward.
Reducing gear housing is a cast iron or welded steel part which takes in all elements of the mechanical transmission (gear wheels, shafts, bearings, etc.). In some cases there are also bearings and gearings lubrication devices or cooling units inside it.
Reducing gear version – reduction ration, assembly version and shaft ends shapes.
Reversibility means convertibility, reflexivity.
Rim (mech.) is a cylindrical edge of a wheel
Rolling surface hardness for the parts that require high wear resistance and high spring-elastic properties. Parts treated by oil quenching and manufactured from steel 65G type require from 320 to 390 HB according to GOST 28648-90.
Your equipment will say – Thank you!
