5 | Installation
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10/2019 | ID 443150_en.00
4.
Insert the gear unit with the hollow shaft onto the machine shaft.
5.
Pull the gear unit onto the machine shaft with the help of the cheese-head screw and washer up to the stop, which is
determined by the collar of the machine shaft, the keeper plate or the output flange.
6.
If the length of the centering hole in the machine shaft is not sufficient, unscrew the cheese-head screw again and
position a spacer bushing of the corresponding length between the cheese-head screw and washer. Repeat the
previous step.
7.
Unscrew the cheese-head screw from the centering hole.
1
Feather key
2
Hollow shaft
3
Cheese-head screw (not in the scope of delivery)
4
Washer (not in the scope of delivery)
5
Keeper plate
6
Centering hole
7
Machine shaft
5.3.4
Mounting a hollow shaft with shrink ring
This chapter describes how to mount gear units with a hollow shaft and shrink ring on a machine shaft.
Prerequisites
§
Material of the machine shaft has a permissible surface pressure p ≥ 325 N/mm²;
§
The information in the chapter
§
The machine shaft has the tolerance of ISO h6 (the inner hole of the hollow shaft has the tolerance of ISO H7).
Procedure
ATTENTION! Property damage!
Only tighten the clamping screws of the shrink ring after you have inserted the gear
unit onto the machine shaft. Otherwise, the hollow shaft can be plastically deformed.
1.
Remove the closing und cover caps from the hollow shaft and shrink ring.
2.
Remove the corrosion protection from the machine shaft, bore of the hollow shaft and shrink ring and other contact
surfaces.
3.
Carefully degrease the machine shaft and hollow shaft, inside and out, in the press area of the shrink ring so that the
torque can be transferred completely.
4.
Apply grease to the machine shaft in the contact area with the bush.
5.
Insert the gear unit with the hollow shaft onto the machine shaft.
6.
If the hollow shaft is slitted in the press area, position the shrink ring at a distance fs from the end of the hollow shaft
(see the following figure and table). Otherwise, position the shrink ring at the stop on the collar of the hollow shaft.
7.
Tighten the clamping screws of the shrink ring evenly in several cycles by one quarter rotation each in turn (not
alternating diagonally) up to the specified tightening torque (see the following table). When tightening the clamping
screws, make sure that the clamping plates of the shrink ring remain plane-parallel and do not touch each other.
