Tractor beam emitter
A tractor beam emitter was a starship component that projects a graviton beam called a "tractor beam". This graviton beam was capable of either attraction or repulsion.

The shuttlebays aboard Federation starships each have a tractor beam emitter mounted near the shuttlebay in order to guide shuttlecraft in. In addition, each shuttlebay has a tractor beam emitter mounted within. ()

In 2293, the location of the tractor beam emitter, on the ventral side of the secondary hull, was labeled in the  master systems display on the ship's bridge. ()

In 2370, Ensign Taitt reconfigured the tractor beam emitters of the  in order to fire a particle beam at a sun to destroy a Borg ship with a solar fusion eruption. () 

In 2377, the 's Emergency Command Hologram escaped from Quarren ships by firing on their tractor beam emitters. ()
Spacecraft components