BALL BEARING MANUFACTURING IN CHINA

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000700180262-0
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 3
• Document Creation Date: December 22, 2016
• Document Release Date: September 6, 2011
• Sequence Number: 262
• Publication Date: May 17, 1954
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700180262-0
CLASSIFICATION C014FIU:;IvTlAL
CENTRAL INTELLIGENCE AGENCY
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS
COUNTRY Carina
SUBJECT Econ;,mic - Idustry, manufacturing,
ball bearing;
HOW
PUBLISHED Monthly periodical
WHERE
PUBLISHED Peiping
DATE
PUBLISHED Aug 1953
LANGUAGE
REPORT
CD N0.
DATE OF
N0. OF PAGES ~
SUPPLEMENT TO
REPORT N0.
THIS IS UNEVALUATED INFORMATION
BALL BEARING MAI7UFACTURING IN CHINA
Chang Yu-show
E gineer, P_an.rfng Offir~
Automobile Industry Bureau
The foundation of new China's ball bearing manufactrsing Lnduntry consisted
of some old and broken-down factories left by the old China. Tne Japanese imperi-
alists had established a ball bearing manufacturing plant Sn the Northeast during
193B, because raw material and cheap lnbor were easily available there. However,
the plant could process only the irurer and outer rings and the fittings of axle
bearings. The balls were imported. Wien Lhe KMT controlled tare Northeast, the
ball bearing plant wasseriously lamaged and stopped i:roducing.
Production in the bail bearing manufacturing plant was resumed later when
the plant was in the hands of the Chinese people. Ir the spring of 19k9, when
the imported balls stored in the warehuuse were practically used gyp, production
was almost supped. The leaders and the workers were very anxious. Tlrey knew
that if no balls were Unoorted there would be no production, and tha operation
of many plants and mines would be affected. This serious problem was presented
to the Northeast Department of Industry. Tire Department of Industry asked the
ball bearing manufacturing plants t; experiment in the manufacturing of balls
with some old grinding machines.
The ir~nortant part; of the grinding machines were missing. The plant ad-
ministrators gave the assignment of repairing the machines to Sung Slrih-f'a.
Several old workers and ten .,r more apprentices were assigned to work with him.
Ctrirr Te-y?an, the shop leader, was supervisor. After two months, parts were
added to the machines and they could be operated but the grinding wheels were
not perfect. Sung Shih-fa read many reference books and asked questions of tech-
ntcians, but he could not find the answer. But difficulty did not make Sung give
up.
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According to the principle of chiiuren cc1t:3 tk:eir na?~: ~, m~.a c~a;; bails,
Sung Shih-fa made two steal ;,lutes 1'or ~riudiag. However, uhcn the siachiue t,u?ued,
the balls fell out. He then carves; grooves on the steel dates. However, trc
plates were made cf steel and did nut grim wolf. He add_c rubber belts t,~ tha
steel plates, but the belts were to:; ::1a~tic acrd co.t and the ba11~ rranufactur~d
whoeseither too large or too small. Sung rai::ad the question to Chin Te-;,uan,
uggested cast iron mates for tha gri:rding? After r,:adiug reference boo'r.:.
and improving the machinery parts, the staudur^ bell bearin~?:;~.+erc pr:;duced.
T}re first perfect ball bearing was arodur.d u:L?ing the Tirst hall' :~, ly!;y,
After the success v1' manufacturing ball b?~nrinG~, fire ,iant bega,, mass ;;re-
duction. Using 1949 as the base year, the production for ;95c; was j00 percent,
for 197 was 560 percent, and for ly5j it was estimated at ._,~;G .,-rent. kt
present, over 1,000 types of bearing products are pr~duceu. Ti,e complete c:et
.f axle bearings from the inner diamatar of millimeters to the outer diameter
oi' 500 or 600 millimeters were Hanel'&ctured wiacii attained i:rternat}onal stand-
ards. For the next 5 years, with the aid of the Soviet Ur.-:on, production ;f
ba1'_ bearings in China will exceed the former nrocuction records and will be fire
best in quality and quantity.
Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700180262-0
 Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700180262-0
Sanitized Copy Approved for Release 2011/09/14 :CIA-RDP80-00809A000700180262-0