What industries are screw guides widely used in? Can anyone exemplify a less common one?

Ball screw linear guide use:

Industrial machinery

CNC machining centers, CNC lathes, CNC milling machine, CNC wire cutting machine, CNC drilling machine, gantry milling machine, laser processing equipment, marking machine, CNC engraving machine, plotter, IC sealing machine, CNC discharge machine, CNC grinder, glass machinery, textile machinery, woodworking machinery. Printing and Packaging Machinery, Petroleum Machinery, Metallurgical Machinery, Tobacco Machinery

Electronic Machinery

Machine Arm, Testing Machinery, Measuring Equipment, X-Y Platform, Medical Equipment, Factory Automation Equipment

Transmission Machines

Metal Heat Treating Equipment, Nuclear Reaction Devices, Actuators

Aerospace Industry

Airplane Flap Actuators for aircraft flaps, seat actuators, airport equipment

Other

Radio antenna actuators, window and door controls, medical bed controls, parking lot equipment

The least common type of actuator is actually parking lot equipment

Carwing Rollerball Technology provides

These are the most common types of actuators in the world.