User Manual

3. Storage, preparation,
installation
-24- B2000-GB-0413 www.nord.com
4. If the coupling half contains a threaded pin, the coupling must be secured axially on the
shaft. The threaded pin must be coated prior to use with a securing lubricant e.g. Loctite
242, Loxeal 54-03 and tightened to the correct torque. (See Chapter 6.3 for torque values)
5. The flange surfaces of motor and adapter must be completely coated with surface sealant
e.g. Loctite 574 or Loxeal 58-14 prior to mounting the motor, so that the flange seals after
mounting. (only necessary for category 2D gear units – see ATEX labelling on the last line of
the gear unit rating plate) Sealing of the flange surfaces is also recommended for installation
outdoors or in damp environments.
6. Mount the motor to the adapter. Do not forget to fit the gear rim or the sleeve.
(See Figure 3-14)
7. Tighten the adapter bolts to the correct torque. (See Chapter 6.3 for torque values)
Figure 3-14: Fitting the coupling onto the motor shaft - various types of coupling
I Gear coupling (BoWex

), one-part
II Gear coupling (BoWex

), two-part
III Gear coupling (BoWex

), two-part with spacer bush
IV Claw coupling (ROTEX

), two-part
V Claw coupling (ROTEX

), two-part, observe dimension B:
Standard helical gear unit: SK0, SK01, SK20, SK25, SK30, SK33 (2-stage)
SK010, SK200, SK250, SK300, SK330 (3-stage)
IEC size 63 IEC size 71
Dimension B (Figure 3-12 V) B = 4.5mm B = 11.5 mm
VI Claw coupling (ROTEX

), two-part with spacer bush