motors and engines for machines and replacement parts therefor except for land vehicles; machine couplings and transmission components for machines except for land vehicles; transmissions and transmission parts for machines, namely, gears and speed change gears, planetary gears, angular gears, two-speed and multi-speed change gears, clutches, and associated intermediate gears for machines; [ motors for machines except for land vehicles; ] wheel, track and drum drives for machines except for land vehicles; shaft output drives for machines except for land vehicles; spindle output drives for machines except for land vehicles; compact and integrated drives for machines except for land vehicles; jacking drives for machines except for land vehicles; hoist drives for machines except for land vehicles; winch drives for machines except for land vehicles; electric drives for machines except for land vehicles; compact double and triple reduction drives for machines except for land vehicles; yaw drives, main drives, and pitch drives for machines, namely, for wind turbines; gears of all types for machines; gearboxes of all types for machines except for land vehicles, namely, planetary gearboxes for machines, right angle drives for machines, transfer cases for machines; two-speed and multi-speed gearboxes and transmissions for machines, gear heads for machines, and, gear reducers for machines except for land vehicles; two-speed mechanical drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; two-speed hydraulic drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; two-speed electrical drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; add-on adapters for additional gear reduction of gear reducers for machines except for land vehicles; spring applied hydraulically released static and dynamic brakes for machines except for land vehicles; final drives, and planetary gear drives except for land vehicles; gears for machines except for land vehicles; shafts for machines except for land vehicles; differentials of all types and replacement parts therefor for machines except for land vehicles; hydraulic, electric and mechanical apparatus for gear changing for machines except for land vehicles; torque converters for machines except for land vehicles, reduction gears for machines except for land vehicles, gear and engine torque reducers for machines except for land vehicles, apparatus for gear synchronization for machines except for land vehicles; multi-speed and two-speed gear changers used to propel or position off-road machinery or components thereof and to increase, decrease or otherwise change or alter the torque or speed of the machine or components thereof; and, force transfer mechanisms for mechanical branch drives in the form of an intermediate gear for machines except for land vehicles; and, rear wheel drives for machines except for land vehicles