|
Component
|
Material
|
Remarks
|
|
1.
Finned housing
|
PRIMO
SERIES : Die-cast Aluminium body upto 132 Frame / Cast Iron for
160 Frame
SPECTRUM
SERIES : Cast Iron for 180 and above upto 315 Frames
|
With
integral feet, without feet
( for flange mounted )
|
|
2.
Stator
|
Insulated
silicon magnetic steel laminations.
Copper
conductors
|
Silicon
content guarantees
Reduced core loss
Cleated
packs
Semi-closed
slots
Class
F insulation
|
|
3.
Rotor
|
Insulated
silicon magnetic steel laminations.
Aluminium
/ Copper conductors
|
-
Skewed cagebars
-
Rotor cage pressure die-cast in aluminium ( or alloy for special
applications) / brazed
-
Shrink fitted to shaft
-
Dynamically balanced rotor
|
|
4.
Shaft
|
Carbon
Steel
|
-
Open keyway
|
|
5.
End Shields
|
PRIMO:
Die-cast Aluminium upto 112 frame and Cast Iron for 132 &
160 frame
SPECTRUM:
Cast iron 180 & above including 315 frame
|
|
|
6.
Bearings and
Lubrication
|
Rolling
bearings
Lithium
soap based grease to grade 3
|
-
Ball bearing, C3 clearance
-
regreasable
|
|
7.
Lipseals
|
Synthetic
rubber
|
|
|
8.
Fan
|
Polypropelene
/ aluminium alloy /
fabricated steel
|
-
Bi-directional : straight blades
|
|
9.
Fan cover
|
PRIMO:
Polypropelene / Deep drawn steel
SPECTRUM:
Deep drawn steel
|
-
Fitted with a canopy for operation in vertical position, while
shaft facing down.
|
|
10.
Terminal Box
|
PRIMO:
Polypropelene / Die-cast aluminium / Cast Iron
SPECTRUM
: Cast Iron or pressed steel
|
-
IP 55
-
Positions, LHS when viewed from NDE for foot mounted motor
-
Rotatable in steps of 90o
-
Terminal box comes with cable entry ( glands optional )
-
1 earth terminal in each power terminal box.
|
