SEW-Eurodrive Movigear Performance MGF**-DFC-C Series, Operating Instructions Manual, Page: 350 / 416

11
Technical data and dimension sheets
Design notes for gear units with hollow shaft and key
Operating Instructions – MOVIGEAR
®
performance
350
11.12 Design notes for gear units with hollow shaft and key
INFORMATION
Always use the supplied NOCO
®
fluid for assembly. The fluid prevents contact corro-
sion and makes disassembly at a later time easier.
INFORMATION
The key dimension L12 is determined by the customer and depends on the require-
ments of the application, as well as on the used materials. See figure "Customer
shaft with [A] and without [B] contact shoulder".
INFORMATION
For dimensioning the keyed connection, observe that the hollow gear shaft (hub) is
made of the material C45R(1.1201) or X17CrNi16-2+QT900(1.4057+QT900) de-
pending on the ordered variant.
11.12.1 Installation
SEW‑EURODRIVE recommends 2 variants for installing the hollow shaft and key on
the input shaft of the driven machine (= customer shaft):
1. Use the provided fastening parts for installation.
2. Use the optional assembly/disassembly kit for installation.
The following sections describe the two options.
25945475/EN – 04/2019