JOURNAL BEARING Meaning and
Definition
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A journal bearing is a type of plain bearing, also known as a plain journal bearing or a plain sleeve bearing. It is a device used to support a rotating shaft, such as an engine crankshaft, by providing a friction-reducing interface between the shaft and the bearing surface.
The construction of a journal bearing typically consists of a cylindrical outer shell called the bearing housing, which encloses a cylindrical inner surface known as the bearing bore. The rotating shaft, referred to as the journal, fits into the bearing bore. The interface between the journal and the bearing bore is usually lubricated, using oil or grease, to minimize friction and wear.
Journal bearings are primarily designed to distribute the load between the shaft and the bearing surface, allowing the shaft to rotate smoothly and efficiently. They are commonly employed in various rotating machinery, such as internal combustion engines, turbines, compressors, and pumps.
One of the key advantages of journal bearings is their self-lubricating nature, which helps in reducing friction and dissipating heat generated during rotation. However, they require regular maintenance and lubrication to ensure optimal performance and prevent premature wear.
Overall, journal bearings play a vital role in supporting rotating shafts, reducing friction, and ensuring proper functioning of machinery.
Common Misspellings for JOURNAL BEARING
- hournal bearing
- nournal bearing
- mournal bearing
- kournal bearing
- iournal bearing
- uournal bearing
- jiurnal bearing
- jkurnal bearing
- jlurnal bearing
- jpurnal bearing
- j0urnal bearing
- j9urnal bearing
- joyrnal bearing
- johrnal bearing
- jojrnal bearing
- joirnal bearing
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- jo7rnal bearing
- jouenal bearing
Etymology of JOURNAL BEARING
The term "journal bearing" originated from the combination of two separate words with distinct etymologies: "journal" and "bearing".
1. Journal:
The word "journal" can be traced back to Middle English and Old French, derived from the Latin word "diurnalis", which means "daily", or "diurnus", meaning "daily or day". In medieval times, "journal" referred to a daily record or diary entry.
2. Bearing:
The term "bearing" comes from the Old English word "beran", which means "to bear or support". It is related to the Old High German word "beran" and Dutch word "baren", all having a similar meaning of carrying or supporting a load.
When combined, "journal bearing" basically refers to a type of bearing that supports or carries a rotating shaft within a stationary component, such as an engine or a machine.
Similar spelling word for JOURNAL BEARING
