Owners Manual • Rexnord
®
Planetgear
™
7000 Speed Reducers
(Page 19 of 33)
Size Mercury/Mars
158-110
10/21 (Supersedes 01/15)
© Rexnord Corporation. All Rights Reserved.
9. With a hammer and punch, tap out the inboard and
outboard bearing cups from the housing.
NOTE
: Take care not to damage the bearing surface of the
housing.
6.3.3 DISASSEMBLING OUTPUT SHAFT
ASSEMBLY TO REPLACE BEARINGS
1. Remove endbell from reducer. Reference
Section 6.3.1
.
2. Support hub to expose the inboard side of the endbell.
Reference
Figure 6.3.3.1
.
NOTE
: Allow space between the shaft extension and the
working surface.
INBOARD END OF SHAFT
OUTBOARD
BEARING CONE
SUPPORT
BLOCKS
Figure 6.3.2.2 Removal of Outboard Bearing Cone
(Option #1)
OUTBOARD END OF SHAFT
OUTBOARD
BEARING CONE
Figure 6.3.2.3 Removal of Outboard Bearing Cone
(Option #2)
SUPPORT
BLOCKS
BEARING
SPACER
RETAINING
RING
INBOARD SIDE
INBOARD BEARING
CUP/CONE
OUTBOARD BEARING
CUP/CONE
Figure 6.3.3.1 Output Endbell
3. Remove external retaining ring.
4. Remove bearing spacer. Store in a clean spot.
5. With an arbor press or a hydraulic press, press the
inboard end of the shaft through the inboard bearing
cone.
6. At this time, the shaft will be free from the housing
and can be separated from the housing. The inboard
bearing cone will be free to remove and discard.
7. To remove the outboard bearing from the shaft, two
procedures can be used. 1.) Support the shaft by the
bearing cone with the inboard end of the shaft facing
up. With an arbor press or hydraulic press , press down
on the inboard end of the shaft. Reference
Figure
6.3.3.2
. 2.) With a hammer and punch, carefully strike
the bearing cone to knock it towards the inboard end of
the shaft. Reference
Figure 6.3.3.3
.
NOTE
: Take care not to damage the shaft bearing surface
or seal surface.
OUTBOARD
BEARING CONE
INBOARD END OF SHAFT
SUPPORT
BLOCKS
Figure 6.3.3.2 Removal of Outboard Bearing Cone
(Option #1)
OUTBOARD END OF SHAFT
OUTBOARD
BEARING CONE
Figure 6.3.3.3 Removal of Outboard Bearing Cone
(Option #2)
8. With a hammer and punch, tap out the inboard and
outboard bearing cups from the housing.
NOTE
: Take care not to damage the bearing surface of the
housing.
6.3.4 INSTALLING BEARING CUPS INTO
INPUT OR OUTPUT HOUSINGS
1. Clean machined surfaces on housing where bearing
cups are located.
NOTE
: If high spots or burrs occurs after disassembly,
use discretion to remove them. Bearing cup has
to be seated perfectly to insure proper bearing
alignment.