Extended Drive Column
for Angle and Vertical Application Pumps.
raise thrust bearings and drive unit above flood level.
See table below for standard lengths.
Thrust bearings are located at top of drive column.
Thrust bearings must be kept above flood
level. Cooling water is normally circulated from the pump discharge
to a water-jacketed bearing housing at the top of an extended drive
If there will be insufficient pressure for cooling water to reach the
housing, a special air-cooled housing
or a separate thermo-siphon water cooling system should be used.
Please consult Batescrew Technical Services Department for details.
Line shaft bearings for extended drive column.
WATER LUBRICATED Line shaft bearing carriers are held
between the flanges along the length of the extended column. The
maximum length of each column section is therefore limited to 1.22 metres
(4ft), with multiple standard sections being used to make up the
required overall length.
As these bearings are water-lubricated, there must be adequate
internal pressure for water to reach the top bearing. Failing this,
1) External flushing water system or 2) Grease-lubricated roller bearings
in the upper sections. Please consult the factory for details.
OIL LUBRICATED Bronze bearings are carried in an
internal lube-tube, therefore longer external column lengths may be used,
as per the table below.
Drive Column sections may be
ordered in any
combination of these standard lengths.