FPT engineer and manufacture different types of nuts actuated by grease:
Nuts with transverse or axial nipple and release screw. Nuts are actuated by an external unit (normally a grease pump).
Nuts with transverse or axial actuator screw piston. Nuts are actuated by a hand-held hex wrench and they do not need an external unit.
For all types of nuts the dimension are between 40 mm of external diameter until 600 mm. With a stroke of 2, 4 or 10 mm.
The main use of nuts is for the mounting or dismounting of bearings, the insert or extract of conical elements, or clamping of mechanical parts.