JPS5754716A - Main bearing for crankshaft - Google Patents
Main bearing for crankshaftInfo
- Publication number
- JPS5754716A JPS5754716A JP12841880A JP12841880A JPS5754716A JP S5754716 A JPS5754716 A JP S5754716A JP 12841880 A JP12841880 A JP 12841880A JP 12841880 A JP12841880 A JP 12841880A JP S5754716 A JPS5754716 A JP S5754716A
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- crankshaft
- crankcase
- bearing
- engine
- 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
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
PURPOSE: To keep sufficient lubricating oil in an antifriction bearing which rotatably supports the crankshaft to an engine or the like, by fitting a sealing member between the outer and inner races of the bearing so that the sealing member is located at the side of a crank arm.
CONSTITUTION: Ball bearings 28, 30 are fitted with sealing members 60 at the side of a crankcase 20b and constitute a main bearing which supports a crankshaft 22. Durin the operation of an engine 10, lubricating oil is sucked together with an intake mixture into the crankcase 20b through a passage 48. A portion of the lubricating oil flows in between the crankcase 20b and a side plate 44 and in between the inner race 54 and outer race 56 of the ball bearing 30 to lubricate it. Another portion of the lubricating oil introduced into the crankcase 20b flows to the other ball bearing 28 through a passage 40. When the crankshaft 22 is rotating, the lubricating oil in the ball bearings 28, 30 is kept by the sealing members 60 from flowing out through clearances because of centrifugal force, so that the lubricating oil is always between the inner race 54 and the outer race 56.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12841880A JPS5754716A (en) | 1980-09-16 | 1980-09-16 | Main bearing for crankshaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12841880A JPS5754716A (en) | 1980-09-16 | 1980-09-16 | Main bearing for crankshaft |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5754716A true JPS5754716A (en) | 1982-04-01 |
Family
ID=14984261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12841880A Pending JPS5754716A (en) | 1980-09-16 | 1980-09-16 | Main bearing for crankshaft |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5754716A (en) |
-
1980
- 1980-09-16 JP JP12841880A patent/JPS5754716A/en active Pending
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