Assembly Of Shg-2So And Shg-2Sh Units - Harmonic Drive SHG Series Manual

5.7 Assembly of SHG-2SO and SHG-2SH Units

The following explanations refer to SHG-2SO Series units, having a Wave Generator with Oldham Coupling or a Solid Wave
Generator.
The assembly of the SHG-2SH Series units with hollow shaft is not described explicitly in this manual. Please contact
Harmonic Drive AG if necessary.
The assembling method of the gear depends strongly on the design details. Thus, this assembly manual only provides
general guidelines. The assembly procedure may differ from those described herein in exceptional cases.
If the described assembling sequence cannot be observed, please ask Harmonic Drive AG whether in the concrete case
another sequence is permissible.
The assembly must be carried out without the use of excessive force. The assembly instructions of the machine manufacturer
should be referred to. Unless otherwise noted, all screws must be tightened crosswise in 3 steps to the prescribed torque.
Pre-assembled screws must not be released. On delivery, Flexspline and Circular Spline of SHG-2SO and SHG-2SH Units are
pre-assembled only by a few screws. Therefore the full output bearing and torque load can only be applied after the unit has
been attached completely to the machine frame and the load. Therefore we recommend to connect the unit to the machine
housing and load (please take care of the dead weight) before applying any radial or axial forces.
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