4
Mechanical installation
Gear unit with solid shaft
Assembly and Operating Instructions – Gear unit series R..7, F..7, K..7, K..9, S..7, SPIROPLAN
®
W
31
4.3
Gear unit with solid shaft
4.3.1
Information about assembly
INFORMATION
Assembly of the shaft is easier if you first apply lubricant to the output element or
heat it up briefly (80 °C – 100 °C).
4.3.2
Assembling input and output elements
NOTICE
Damage to bearing, housing or shafts due to incorrect mounting
Possible damage to property.
• Only use a mounting device for installing input and output elements (see chapter
31)). Use the threaded centering bore at the
shaft end.
• Never force belt pulleys, couplings, pinions, etc. onto the shaft end by hitting
them with a hammer.
• In the case of belt pulleys, make sure the belt is tensioned correctly in accord-
ance with the manufacturer's instructions.
• Make sure the transmission elements are balanced after fitting and do not give
rise to any impermissible radial or axial forces. For the approved values, refer to
the catalog "Gearmotors" or "Explosion-Proof Drives".
Using a mounting device
The following figure shows a mounting device for installing couplings or hubs on gear
unit or motor shaft ends. Should you be able to tighten the screw without any prob-
lems, you may not need the thrust bearing on the mounting device.
[1]
[3]
[2]
211368587
[1]
Gear shaft end
[3]
Coupling hub
[2]
Thrust bearing
21932786/EN – 05/2015