gmb / BA PowerGear_EN as of May 2015 / 29.10.2015
Page 14 of 23
7.4 Fitting of motors
The gear unit types FL and FH
are equipped at the drive end with a hollow shaft complete with key groove, the
bore fitting is provided of H7 quality.
The motor shaft must always be positioned and fitted such that it is in
alignment with the gear shaft
. Coat shafts with assembly paste, then join up motor to the gear shaft.
Do
not
use a hammer to drive in motor, but use the suitable bores and threads on gear unit and motor to pull the
same with mounting bolts up to the flange surfaces until the motor is in close contact.
If there is stress on the bearings, the motor will spring back easily, repeat process until motor and gear unit are
in stress-free contact with the flanges and the shafts can be rotated easily.
Attention
damage to gear unit:
If the motor is driven on by the hammer, gear unit damage may occur.
Any stress and tension on the bearings may cause them to overheat and cause
bearing damage with ensuing blockage.
Drive with lantern and coupling
a. Preparation
The surfaces of the coupling bores and the shaft ends must be free from dirt, above all from grease and oil.
b. Installation of the coupling
The radially located clamp screw of the coupling half to be fitted is turned to the left, until the screw head is in
contact with the cross pin fitted in the depression. By continuing to rotate the screw the coupling bore is elastical-
ly expanded, so that the coupling can be slid easily onto the shaft. For disassembly, proceed analogously.
Clamp screw and cross
pin.
Turn screw to the left until
the head of the screw is in
contact with the cross pin. If
you then continue to turn
the screw further to the left,
the coupling will be ex-
panded.
ATTENTION
: Expand only
to such an extent that the
coupling can be fitted, oth-
erwise there is a
risk of
fracture
.
Coupling expanded for
fitting.
Coupling bores must be
free from dirt and
grease.
After installation the
clamp screw must be
tightened with the neces-
sary tightening torque
Tightening torques of the clamp screws
Screws: DIN 912, 10.9, galvanized
M4
M5
M6
M8
M10
5 Nm
10 Nm
14 Nm
35 Nm
65 Nm
7.5 Installation of the other fitted components
The drive and output elements (gears, belt wheels, jointed shafts etc.):
- must have been balanced with G 6.3,
- must only be fitted using suitable fitting and withdrawal devices,
- must be axially secured even if they have been shrunk on,
When using suitable tensioning elements the tightening torques must be taken into account.
The components must be mounted onto the shaft as far as is specified in the article-related dimension sheet.
In the case of a belt drive the correct belt tension must be assured, comply with the manufacturer's instructions
in this regard. The permissible transversal forces for the shaft must not be exceeded (see catalogue).
Drive and output elements must be covered by contact protection.
