Figure 9-3 Dismantling the labyrinth ring
1. Mark the components of the bearing units so that they can be assembled correctly.
2. Remove the protective coating from the shaft in front of the Iabyrinth ring.
3. Unscrew the three radially arranged set screws for fixing the ring axially.
4. Screw suitable bolts or screws into the radial threads for pulling off. Note the length of
engagement to avoid clamping to the shaft or damaging the thread.
5. Warm the labyrinth ring as you pull it off.
9.2.3.3 Remove V ring for roller bearing seal
Depending on the particular version, there is a V ring. The V ring must be replaced if unusual
amounts of grease escape the roller bearing or the V ring is visibly damaged.
Figure 9-4 Remove the V ring
1. Mark the components so that they can be correctly assembled.
2. Remove the V ring ① with the bearing cap – or by using a suitable tool from the shaft.
Removing the protective ring for IP56 degree of protection
The V ring for the outer bearing seal is fitted with a protective ring ② for degree of protection
IP56. The protective ring does not have to be removed for disassembling the bearing bush.
● Remove the protective ring together with the V ring and the outer bearing cover or end
shield from the shaft.
See also
Fitting V ring for roller bearing seal (Page 105)
Maintenance
9.2 Corrective Maintenance
SIMOTICS HV M 1RN76308PR900CG0-Z
104 Operating Instructions 07/2018
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