Question
Download Solution PDFWhich of the following are the functions of lubrication in a bearing unit ?
1. To protect the bearing components from corrosion.
2. To absorb heat from the bearing unit.
3. To carry heat away from the bearing unit.
Select the correct answer using the code given below
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
In a bearing, lubrication forms a thin oil film on both the rolling surface and sliding surface to prevent metal to-metal contact.
The benefits of lubricating a rolling bearing can be summarized as follows:
(1) Alleviation of friction and wear
(2) Removal of friction heat
(3) Longer bearing life
(4) Rust prevention
(5) Protection against contamination by foreign matter
Last updated on Jun 23, 2025
-> UPSC ESE result 2025 has been released. Candidates can download the ESE prelims result PDF from here.
-> UPSC ESE admit card 2025 for the prelims exam has been released.
-> The UPSC IES Prelims 2025 will be held on 8th June 2025.
-> The selection process includes a Prelims and a Mains Examination, followed by a Personality Test/Interview.
-> Candidates should attempt the UPSC IES mock tests to increase their efficiency. The UPSC IES previous year papers can be downloaded here.