Assembly/disassembly of gear units with hollow shaft and key

Use the supplied NOCO-Paste for mounting. This avoids contact corrosion and facilitates subsequent disassembly.

The key dimension L12 is specified for the customer and depends on the application requirements and the used materials. See the following figure "Customer shaft with contact shoulder [A] and without contact shoulder [B].

When dimensioning the keyed connection, take into account that the hollow shaft of the gear unit (hub) is made of the material C45R (1.1201).

SEW-EURODRIVE recommends 2 variants for mounting for gear units with hollow shaft and key onto the input shaft of the driven machine (= customer shaft):

• Mounting using supplied fastening parts
• Mounting/dismounting using the optional assembly/disassembly kit

These two variants are described below.