5 | Installation
32
10/2019 | ID 443150_en.00
Fig. 5: Mounting device for a belt drive (example)
1
Washer
2
Nut
3
Threaded pin
4
Axial bearing
5
Belt drive (example)
6
Solid shaft
5.3.2
Mounting drive elements on a flange shaft
This chapter describes the assembly of drive elements, such as belt drives or pinions, on a flange shaft.
ATTENTION! Damage to encoders, bearings and shafts due to improper assembly!
Never use force when
mounting drive elements with fittings, e.g. hitting drive elements, shafts or the motor or gear unit housing with a hammer,
and instead install them in accordance with the instructions in the documentation.
Prerequisites
§
The drive element does not cause any impermissible shaft loads (e.g. tensioning the belt on a belt drive). Information
on permissible shaft loads can be found in the corresponding catalog (see
).
§
The information in the chapter
Procedure
1.
Remove the corrosion protection from the contact surfaces of the flange shaft and drive element.
2.
Center the drive element over the inner or outer pilot of the flange shaft. The inner pilot has a fit of ISO H6 and the
outer pilot of ISO h7 (see the figure in the chapter
Mounting PK, PKX, PHK, PHKX, PHQK gear units on the machine
).
3.
Mount the drive element on the flange shaft with screws of strength class 12.9. Further details on the screws can be
found in the following table.
4.
Tighten the screws evenly in multiple passes with increasing torque and alternating diagonally. The tightening torques
can be found in the chapter
Gear unit type
Number of screws
Screw size
Min. screw-in depth [mm]
KS4
8
M6
11
KS5
12
M6
12
KS7
12
M8
15
PH3_KX
8
M5
7
PH4_KX
8
M6
11