Sumitomo Cyclo BBB4 - Removal of Cyclo BBB4 with Keyed Hollow Bore

Cyclo® BBB4
Operation & Maintenance Manual 25
Cyclo® BBB4
5
Place a soft-metal (i.e. brass) bar against the flange of the Taper-Grip® bushing and
carefully strike end of bar with a hammer to release the bushing.
6
Apply a liquid penetrant to the shaft where it contacts the bushing. Allow time for
the liquid to settle between the shaft and the bushing wall. Once the penetrant has
settled adequately, carefully remove the Cyclo® BBB4 from the driven shaft.
If the Taper-Grip® bushing releases but the unit cannot be removed from the driven
shaft, a puller may need to be applied to the bushing flange to pull the unit free
from the shaft.
Removal of Cyclo® BBB4 with Keyed Hollow Bore
Before starting unit removal process, ensure that electrical power to unit has
been safely locked out and that electrical connections to the unit have been
disconnected.
1
Remove safety cover and the shaft-retaining device from the driven shaft.
Removal from Driven Shaft, continued
Removal of Cyclo® BBB4 with Keyed Hollow Bore
Size
a f g h
CC(ISO/JIS) A3 BOLT A8
4A
55 19 M24x250 6
4B
65 19 M24x300 6
4C
75 19 M24x300 5
4D
85 24 M30x400 5
4E
100 19 M30x400 5
4F
120 30 M36×450 7
Table17.RemovalJigDimensions
Internal Snap Ring a
Spacer: Threaded f
Bolt
g
Thrust Disc h
If shaft removal is difficult, a jig such as the one shown in Table 17 may be used to ease the
removal process. Sumitomo does not supply the removal jig .
This information is supplied for reference only.
A3
A8