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AUTOMATED
HYDRAULIC BEARING EXTRACTOR WITH OIL INJECTION SYSTEM
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SERIES 'DWT-MOT' :
The
'DWT MOT' Series Automated Hydraulic Bearing Extractor
is a specially designed compact, mobile equipment
for dismounting spherical roller bearings shrynk
fitted (i.e. direct mounted) on cylindrical journals
of wheel sets of ICF Coaches (BG/MG) and EMUs of
Indian Railways.
This is the latest addition to INVENTUM's Range
of Hydraulic Extractors based on Oil Injection System
and has greater productivity to the manually operated
Extractors. |
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Principle :
The
dismounting procedure is based on Oil Injection System.
In the oil injection system the pressurised oil is injected
between the bearing and the journal surface and forms
a thin oil film eliminating metal to metal contact. The
bearing virtually floats out on this oil film without
scoring the journal. |
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Design Features :
- The
Extractor consists of a Mobile Workstation mounted
with compact Hydraulic Power-Pack having built
controls and safety devices.
- The
equipment has two fixed wheels in front and two swivel
castors at the rear of the hydraulic components of
the primary pressure source of 150 bars (max.) and
the other compartment has an intensifier for oil injection
to produce the pressure of 750 bars.
- The
dismounting tools and accessories are specially designed
to facilitate injecting of the oil at high pressure
between the shrink fit bearing inner ring and the
cylindrical journal, for easy and effortless dismounting.
- The
motorised hydraulic power pack with oil injection
system of this equipment makes the bearing withdrawal
safe and effortless.
- The
fast acting hydraulic withdrawal fixture ensures that
the axial displacement of the bearing is fast, without
use of manual force.
- In
case of power failure or in case of field operations
when the Automated Hydraulic Extractor's Power-Pack
can not be used, as a stand by the unit is provided with two sets
of manually operated Oil Injectors with foot-stand
& other accessories and one Cranking Jack Assembly,
to be used for Manual Withdrawal Procedure.
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AUTOMATED HYDRAULIC BEARING EXTRACTOR
(WITH OIL INJECTION SYSTEM)
For dismounting spherical roller bearings shrunk fitted
(i.e. direct mounted) on cylindrical journals of wheel
sets of ICF Coaches (BG/MG) and EMUs of Indian Railways.
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