Technical data

Rexroth IndraDyn H Assembly Instructions 11-11
DOK-MOTOR*-MBS-H******-PR02-EN-P
lubricated O-ring
ø d1
OIL
OIL
Groove
ø d2
EXVORMON_H_EN.EPS
Fig. 11-9: Preparing the rotor and spindle for assembly
• Prepare the work fixture for the rotor so that the rotor is supported
vertically and can take up the spindle.
Shrink-fitting the Rotor onto the Spindle
1. Heat the rotor in the heating cabinet to at least +135°C, but no more
than 145°C.
Note: If the rotor is not heated to at least +135°C, it is possible for
the spindle to get stuck in the rotor during the shrink-fitting
process before reaching its final position.
WARNING
Burns due to hot components with temperatures
above 50°C!
⇒ The rotor is hot! Contact leads to serious burn
injuries!
⇒ Wear heat-resistant work clothing and heat-
resistant gloves!
2. Cool the spindle to -20°C.
Note: If the spindle is not cooled to at least -20°C, it is possible for
the spindle to get stuck in the rotor during the shrink-fitting
process before reaching its final position.
WARNING
Injuries due to supercooled parts with
temperatures down to -20°C!
⇒ The spindle is cold!
⇒ Wear suitable protective clothing and safety gloves!
3. Place the rotor into the prepared work fixture. The O-ring must be at
the top.
4. Pick the spindle up and quickly slide it into the rotor.