Housing of horizontal gearbox NO.11.12

Made of grey cast iron according to GOST 1412-85 by casting and milling on a CNC machine. Often called a central or square housing, or simply a block. It is the base of the gearbox NI.11.12. Together with the covers NI.11.12.202 and NI.11.11.204, it forms an oil bath for the gearbox gears.