7 Torque converters, other than for land vehicles; hydraulic controls for machines, motors and engines; brushes being parts of generators; transmissions for machines; control mechanisms for machines, engines or motors; transmission mechanisms, other than for land vehicles; machine fly-wheels; pulleys [parts of machines]; pneumatic controls for machines, motors and engines; machine wheelwork; motors, electric, other than for land vehicles; dynamos; bearings [parts of machines]; driving motors, other than for land vehicles.