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JPS56118525A - Drive gear mounting structure to crankshaft of internal combustion engine - Google Patents

Drive gear mounting structure to crankshaft of internal combustion engine

Info

Publication number
JPS56118525A
JPS56118525A JP2155280A JP2155280A JPS56118525A JP S56118525 A JPS56118525 A JP S56118525A JP 2155280 A JP2155280 A JP 2155280A JP 2155280 A JP2155280 A JP 2155280A JP S56118525 A JPS56118525 A JP S56118525A
Authority
JP
Japan
Prior art keywords
crankshaft
fitted
shaft portion
bearing
mounting structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2155280A
Other languages
Japanese (ja)
Inventor
Yasushi Ashihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP2155280A priority Critical patent/JPS56118525A/en
Publication of JPS56118525A publication Critical patent/JPS56118525A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PURPOSE: To attain a stabilized support for a crankshaft by fixing bearing portions on opposite sides of a crank supporting a crankshaft even in a thrust direction relative to support parts and by providing the crankshaft with a mounting structure for mounting a power transmission gear thereon.
CONSTITUTION: A bearing 13 is fitted on a shaft portion 12 of a crankshaft 10 on one side of a crank 11 and force fitted in an opening in a support part 14 which is formed by a part of a crankcase. In this case, the bearing 13 is force fitted into the opening from the inner side of the opening since an inwarly extending flange 15 is provided on the outer side of the support part 14. After fitting of the bearing 13, a power transmission gear 16 is fitted onto the shaft portion 12 from the free end side of the shaft portion 12 and is secured thereto so as not to rotate but to axially slide relative thereto by means of a pin 17. Then, a fly-wheel 18 is fitted on the shaft portion 12 and is secured so as to provide for rotation relative thereto by tightening a nut 20 through a spacer 19.
COPYRIGHT: (C)1981,JPO&Japio
JP2155280A 1980-02-25 1980-02-25 Drive gear mounting structure to crankshaft of internal combustion engine Pending JPS56118525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2155280A JPS56118525A (en) 1980-02-25 1980-02-25 Drive gear mounting structure to crankshaft of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2155280A JPS56118525A (en) 1980-02-25 1980-02-25 Drive gear mounting structure to crankshaft of internal combustion engine

Publications (1)

Publication Number Publication Date
JPS56118525A true JPS56118525A (en) 1981-09-17

Family

ID=12058155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2155280A Pending JPS56118525A (en) 1980-02-25 1980-02-25 Drive gear mounting structure to crankshaft of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS56118525A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047362A1 (en) * 1999-02-11 2000-08-17 United Engineering Forgings Limited Crankshaft construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047362A1 (en) * 1999-02-11 2000-08-17 United Engineering Forgings Limited Crankshaft construction

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