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Which one of the following statement is not true of rolling contact bearing?
- a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressure
- b)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith it
- c)Outer race of the bearing has an interference fit with bearing housing and does not rotate
- d)In some cases, the inner race is stationary and outer race rotates
Correct answer is option 'A'. Can you explain this answer?
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Which one of the following statement is not true of rolling contact be...
1st statement is not valid for rolling contact bearing it is useful in journal bearing.
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Which one of the following statement is not true of rolling contact be...
Statement Explanation:
In rolling contact bearings, the rolling elements (balls or rollers) make contact with the inner and outer races, allowing for smooth rotation with reduced friction. Let's analyze each statement to determine which one is not true.
a) The bearing characteristic number is given by ZN/P where Z is the absolute viscosity of the lubricant, N is the shaft speed, and P is the bearing pressure.
This statement is not true. The bearing characteristic number, also known as the bearing modulus or bearing factor, is given by ZN/πP, where Z is the absolute viscosity of the lubricant, N is the shaft speed in revolutions per minute (RPM), and P is the bearing pressure in pounds per square inch (psi). The inclusion of the π term is necessary to account for the unit conversion between rotational speed (RPM) and bearing pressure (psi).
b) The inner race of a radial ball bearing has an interference fit with the shaft and rotates along with it.
This statement is true. The inner race of a radial ball bearing is typically mounted on a shaft with an interference fit. This means that the inner race is slightly smaller than the shaft diameter, creating a tight fit. As a result, the inner race rotates along with the shaft, allowing for the transfer of rotational motion.
c) The outer race of the bearing has an interference fit with the bearing housing and does not rotate.
This statement is true. The outer race of a rolling contact bearing is usually mounted inside a bearing housing with an interference fit. The interference fit ensures that the outer race is securely held in place and does not rotate. Instead, the rolling elements (balls or rollers) rotate between the inner and outer races.
d) In some cases, the inner race is stationary, and the outer race rotates.
This statement is true. While it is more common for the inner race to rotate along with the shaft, there are cases where the inner race is stationary, and the outer race rotates. This configuration is often used in applications where the outer race needs to be fixed, such as when the bearing is mounted on a stationary housing and the shaft rotates.
Therefore, the statement that is not true of rolling contact bearings is a) The bearing characteristic number is given by ZN/P where Z is the absolute viscosity of the lubricant, N is the shaft speed, and P is the bearing pressure.
In rolling contact bearings, the rolling elements (balls or rollers) make contact with the inner and outer races, allowing for smooth rotation with reduced friction. Let's analyze each statement to determine which one is not true.
a) The bearing characteristic number is given by ZN/P where Z is the absolute viscosity of the lubricant, N is the shaft speed, and P is the bearing pressure.
This statement is not true. The bearing characteristic number, also known as the bearing modulus or bearing factor, is given by ZN/πP, where Z is the absolute viscosity of the lubricant, N is the shaft speed in revolutions per minute (RPM), and P is the bearing pressure in pounds per square inch (psi). The inclusion of the π term is necessary to account for the unit conversion between rotational speed (RPM) and bearing pressure (psi).
b) The inner race of a radial ball bearing has an interference fit with the shaft and rotates along with it.
This statement is true. The inner race of a radial ball bearing is typically mounted on a shaft with an interference fit. This means that the inner race is slightly smaller than the shaft diameter, creating a tight fit. As a result, the inner race rotates along with the shaft, allowing for the transfer of rotational motion.
c) The outer race of the bearing has an interference fit with the bearing housing and does not rotate.
This statement is true. The outer race of a rolling contact bearing is usually mounted inside a bearing housing with an interference fit. The interference fit ensures that the outer race is securely held in place and does not rotate. Instead, the rolling elements (balls or rollers) rotate between the inner and outer races.
d) In some cases, the inner race is stationary, and the outer race rotates.
This statement is true. While it is more common for the inner race to rotate along with the shaft, there are cases where the inner race is stationary, and the outer race rotates. This configuration is often used in applications where the outer race needs to be fixed, such as when the bearing is mounted on a stationary housing and the shaft rotates.
Therefore, the statement that is not true of rolling contact bearings is a) The bearing characteristic number is given by ZN/P where Z is the absolute viscosity of the lubricant, N is the shaft speed, and P is the bearing pressure.
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Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer?
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Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer?.
Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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ample number of questions to practice Which one of the following statement is not true of rolling contact bearing?a)The bearing characteristic number is given by ZN/P where Z is absolute viscosity of the lubricant N is the shaft speed and P is the bearing pressureb)Inner race of a radial ball bearing has an interference fit with the shaft and rotates alongwith itc)Outer race of the bearing has an interference fit with bearing housing and does not rotated)In some cases, the inner race is stationary and outer race rotatesCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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