www.graessner.de
gmb / BA DynaGear_EN
Page 13 of 22
The drive shaft end must be
free from dirt, oil, and grease
Fit the coupling, prepare as
described above. If prescribed,
adjust the assembly dimension of
the coupling according to the
dimension sheet.
Tighten clamping screw.
Install the lantern and tighten the
screw(s). The coupling can be
tightened on the motor side through
the hole at the top. It is recommended
to turn the lantern so that this hole is
on the side of the terminal box of the
motor.
For the mounting dimension of the coupling to the gearbox, refer to the corresponding dimension sheet.
If nothing to the contrary has been stated there, push the coupling onto the shaft until it rests against the shaft
shoulder. After tightening the coupling, place the motor lantern piece on the coupling and screw it tight, making
sure that the holes for tightening the clamping screws on the coupling are on the same side as the terminal box
on the motor.
Tightening torques of the clamp screws on the couplings
Screws: DIN 912, 10.9, galvanized
M4
M5
M6
M8
M10
5 Nm
8.5 Nm
14 Nm
35 Nm
69 Nm
b. Fit motor
Preferred mounting in vertical position. Always place the motor shaft on the coupling in alignment with the gear
unit shaft. The metal bellows of the coupling must not be bent or axially offset during assembly.
Do
not
drive the motor in with a hammer, but slide it into the centering seat via the suitable holes and threads
on the gear unit and motor using mounting screws until the motor is tight, then tighten the coupling on the motor
side.There must be no strain and stress on the bearings and the coupling.
After tightening the clamping screws, insert plug into the bore.
Attention to damage to gear unit:
▪
Incorrect installation can cause the coupling to be offset or bent!
▪
Tension in the bearings can cause overheating, resulting in bearing damage
with blockage.
▪
The shaft sealing rings and the running surfaces of the shafts must not be
damaged when the coupling parts are fitted. Otherwise, leakage may occur!
Upon request, other coupling types and variants may be installed!
Basically, we refer to the operating instructions of the respective coupling manufacturer!
