STANDARD MAKES OF BABBITT METALS USED IN THE USSR

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00047R000300480010-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 3
• Document Creation Date: December 23, 2016
• Document Release Date: April 17, 2013
• Sequence Number: 10
• Publication Date: October 27, 1953
• Content Type: REPORT

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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2014/11/04: CIA-RDP82-00047R000300480010-4
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CLASSIFICATION SECRET -
CENTRAL INTELLIGENCE AGENCY
INFORMATION REPORT
COUNTRY USSR DATE DIS October 53
SUBJECT Standard Makes of Babbitt Metals Used in. the USSR NO. OF PAGES .5
PLACE
ACQUIRED
DATE
ACQUIRED BY SOURCE
DATE OF INFO .
THIS 000UMIHT CONTAINS INFORMATION 0771071114 TOO WATI0NA 0171001
Of THt UNITIO KKKKKK WITHIN THt MtANINS OF TITLI Igo StCTIONS 793
AND 794, OF TNt U.S, 0001, AS *IMMO. ITS KKKKK MISSION OR RtYt.
LATION OF ITS CONTRICIS TO OR SIORIPT SY AN IINAUTHORIllt PRISON IS
PRONISITtO SY LAW, THt RRRRRR NOTION OF TNIS 70/14 IS P1011111700.
NO: OF ENCLS.
(LISTED BELOW)
50X1
50X1
SUPPLEMENT TO
REPORT NO. 50X1
50X1
THIS IS UNEVALUATED INFORMATION
SOURCE
50X1
1. In the rchant and River Fleet of the USSR uses are found for all makes of babbitt
metal. In Diesel operating practice during the last few years a method of lining
the bearings with two grades of babbitt metal was introduced. In practice this
method consists of lining the sides of the Diesel bearings with,a cheaper gradeof
babbitt because the sides of the bearings play almost no part in operation.
2. 14 practice this method was not successful compared with the ordinary methods of
lining bearings. The lining of bearings with babbitt of two grades did not become
possible until the ordinary lining was replaced by a fused surf aoe of babbitt by
means of an autogenous or some other welding torch. The basic method for the
autogenous lining of bearing With two makes of babbitt is as follows; First of
all, the old babbitt is melted off the bearing, after which it is helpful to plate
the bushing with tin in the same place to prevent the oxidation of its surface.
Then the bushing is put on a welding bench and is heated through from the inede by
the intense flame of an autogenous welding torch to a temperature 200 - 2500 0
(pre-heating may be done in a hearth). The section, to be fused, of the inner
surface of the bushing is put in a,horizontal position and steel blocks covered
with a layer of sheet asbestos are Pressed up against both ends of the bushing to
prevent the babbitt metal from running off. The autogenous torch again heats up
the place for the fusinn and fuses onto it babbitt from rods of babbitt, about
10 x 10 mm in cross section.
3. Usually the babbitt is fused on in rows (beads) and if there is a simple arrange-
ment for turning the bushing, it is possible to menage!rwithout help.
sag Limn. PAGE FOR SLOAN:Tit. /API etPOES_
ORR -Ev
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4. In order to determine the thickness of the layer, an iron template cut out of sheet
iron is used. By this means it is possible in one shift to babbitt up to 10
bushings for a shaft of 250 mm diameters
5. While fusing the babbitt metal, the torch flane need not be intense. It is help-
ful to run the same rod of babbitt metal along the surface of the bushing at the
places where for some reason or another the babbitt is not adhering, and sometimes
it is necessary to use hYdrochloric acid.
6. It'ahould be bort'it mind that the use of too thick rods of babbitt, the fusing
of which requires the torch flans to be intensified, results in the burning out
and ruining of the babbitt. This can easily be noticed from the appearande of
blackness.
7. It is quite immaterial with what grade of babbitt metal the fusing is begun; the
only important thing is to keep the different grades of rods strictly separated.
, .
8. This mathodof lining bearings can also be used for larger parts, for example,
croaehead shawl or crankpin bearings. In these oases thorough heating of the
parts is.not.required; only the surface Which is to be fused with the babbitt
natal is heated,
9. Repair of bearing! with. =asked linings cannot be carried out by this method's: In
,
thie case the, babbitt matalie poorly bound to the body of the bearing,,, Ueuilly
in such inetinoes the rack in the bearing will. reappear in the old place,.
,
10. The method of lining beiringsuph, two grades, of babbitt metal has become
widespread in USSR'asan. economically, prOfitable method, in view. of the
fact that babbitt metala hal in4p. oollgorYr of materials in ariticallvehort
, , , , .
Supply.
11 ps:!following standard makes, of, hahbitt metals, are used in the ,ITSSR.s.�.
(A) Tin babbitt'l 83
Ch�ical compoeitiona
03)
autimony
10
*Per
546
tin
82 r
2%
6.$ %
84 %
Melting point,240 7 3569 C
Pouring teimperature 480' C
Specific gravit04,3
Tinrleadhabbitt B 16
Chemical composition:
antimony 15 - 17 %
copper 2.75 - 3.25 %
lead 64 - 66 %
tin, 15%
Malting ,point 240 4350 C
Pouring temperature 4800 C
Specific gravity 9.3
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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2014/11/04: CIA-RDP82-00047R000300480010-4
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(C) Tin*-lead babbitt - B 10.
CheMical �cpmpos444tcx
anitimony'
coPPFr
lead. -71., 73 %..
tin . .9.5 - 10.5 %
146.144g.p9int 240- 435� O..
Poing temperatu4.4'485� C
.Specific gravity 9.7
(D) Lead babbitt- B S
Chemical compositions
antimony' 16 - 18 %
copper
1.25
- 1.75
%
lead
,80,5
- 82.5
%
NeAing point 240 - 410 C ,
.pouring temper4vrz 465?:9''
Specific gravity 10,1
(E) Calcium babbitt BK 1
Chemical composition:
lead 97.9 - 98.4 %
calcium. 0.8- 1.1 %
sodium 0.75 - 1.0 %
NeltiAg point 320 C
Pouring temperatUi4 500� C
Specific gravity 10.5
Arsenic- cadmiumbabbitt BNK
Chemical compositiCns
(F)
- 3 -
antimony
00PPer
tin -
11
1,5
11
- 11.5 %
7 2.0 %
-:12 %
Nelting point 25.:*: 350P C
Pouring temperature, 4000C
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Specific gravity 9.6
The alloys from (A) through (D) (OST/KTP :People's Commissariat of Heavy industri7
2721) have been standardized, Alloy (E) replaces alloy (D) and alloy (F) replaces
alloy (A).
LIBRARY SUBJP:CT & AREA COMP
2/74/. 44.h /V
3i7N, /r /iv
5/ 73.2
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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2014/11/04: CIA-RDP82-00047R000300480010-4