Operating Instructions
2K800/2K801/2K802
Initial
Installation
EN 4161.758.103m – 2015-10
13
3.3
Adaptation, motor/gearbox
The motors must have a flange-mounting option
for mounting the gearboxes.
The gearbox housing is fitted to the motor by
means of the centering adapter on the bearing
housing. This is standard.
Different gearbox variants are used depending on
the motor type. Gearbox mounting also differs
accordingly.
Reference dimensions for hub position
Gearbox type
For output
shaft length
Dimension C in
mm
2K800
2K801
2K802
140 82.3
-0.2
140 148.3
-0.2
170 182.3
-0.2
CAUTION
Dimension
C
is
reduced
by
0.5
mm
in
motors
with
a
fixed
bearing
on
the
B
‐
side.
Spacer discs are supplied with shims of varying
thickness. These enable balancing of the motor
shaft length tolerances and, therefore, compliance
with reference dimension “C”.
3.3.1
Open design
The open version is the gearbox without adapter
plate but with seal on the motor output shaft (2) to
prevent gearbox oil ingress.
The drive hub (1) is delivered loose with the
gearbox. Clean the fitting surfaces of the motor (3)
and drive hub. Check the motor shaft for axial and
radial runout as described in chapter 3.1. Also
lightly grease the motor shaft.
After cleaning the fitting surfaces, heat the drive
hub to approx. 120 °C from the opening and slide
it onto the motor shaft until it reaches the stop.
Then check reference dimension “C”. If undersize,
use shims for balancing. If oversize, shorten the
motor shaft.
CAUTION
Risk of motor shaft damage if the hub is not
sufficiently heated.
Tighten the threaded pin (9) and secure it to
prevent it from turning, see chap. 3.4.
