Note that only one of the two connection ports in the radial bearing housing is used (immediately
above the single row radial bearing). You must connect to both connections on the thrust bearing
housing, because there are two rows of bearings.
1
2
551E
408A
408A
551E
133H
133H
160
160
1. Radial end (Drive end)
2. Thrust end (Non drive end)
Description
Part No.
Radial and thrust
133H
Bearing end cover
160
Thrust only
551E
Radial and thrust drain
408A
Figure 30: Oil-mist connections
3.
For pure-oil mist, connect the drain lines (408A) to the outlet connections.
This is not required for purge-oil mist.
5.5.6.1 Convert to oil-mist lubrication
NOTICE:
Make sure that pipe threads are clean and apply thread sealant to plugs and fittings.
NOTICE:
In both housings install bearing end cover (160) designed for oil mist.
You can convert from ring-oil lubrication to oil-mist lubrication in pumps with ball bearing construction.
The radial and thrust end bearing housings (134) have pre-drilled connections for oil mist:
•
1/4 in. NPT connection on the inboard side of each housing (133H)
•
1/2 in. NPT connection on the outboard side (551E)
Purge-oil mist lubrication provides intermittent oil mist in the bearing housing. This system uses the oil
sump in the housing, and requires the oil ring and the constant-level oiler.
Pure-oil mist lubrication provides constant oil mist in the bearing housing. This system does not use the
oil sump, oil ring, or constant-level oiler. The drain connections in the bearing housing are used as part of
the oil recirculation system.
1.
On the radial housing, replace the 1/4 in. NPT plug (133H) with an oil-mist fitting provided by the oil-
mist system manufacturer.
5.5 Bearing lubrication
50
3620 i-FRAME API type BB2 single stage / ISO 13709 2nd Ed/API 11th Ed Installation, Operation, and Maintenance
Manual
Содержание GOULDS PUMPS i-FRAME 3620
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