Primary gearbox T 150G shaft for T-150 tractor, Kharkiv region.

The primary universal shaft with two grooves is installed ontractors KhTZ T-150G and T-150K.
(//tractor-service.com)
On the primary shaft of the tractor there is a drive gear that drives the intermediate shaft. A block of gears is located on the intermediate shaft, the gears of which are rigidly connected to the shaft and are often manufactured as a single component part. There are driven gears on the secondary shaft, which can be located on the splines of the shaft and move along them, or rotate on the hubs, in which case their longitudinal movement is excluded, and the transmission is switched on by connecting the gear to the shaft with a sliding clutch, often equipped with a mechanism that equalizes the angular speeds of the shaft and gears - a synchronizer. Cam clutches are often used for the same purpose in unsynchronized gearboxes of sports cars or special vehicles.

catalog number 150.37.104-4-02