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If we exclude the cost factor, which bearing is preferred?
- a)Hydrostatic
- b)Hydrodynamic
- c)Both are equally preferred
- d)Cannot be determined
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
If we exclude the cost factor, which bearing is preferred?a)Hydrostati...
Explanation: High load capacity, no starting friction and no rubbing action.
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If we exclude the cost factor, which bearing is preferred?a)Hydrostati...
Hydrostatic vs Hydrodynamic Bearings
Introduction:
Bearings are mechanical components that enable relative motion between two parts while reducing friction and supporting loads. Hydrostatic and hydrodynamic bearings are two common types of bearings used in various applications. The preferred type of bearing depends on several factors such as load capacity, speed, accuracy, lubrication, and cost. However, if we exclude the cost factor, hydrostatic bearings are generally preferred over hydrodynamic bearings.
Explanation:
1. Load capacity:
- Hydrostatic bearings: Hydrostatic bearings use a pressurized fluid film to support the load, providing a high load capacity.
- Hydrodynamic bearings: Hydrodynamic bearings rely on the relative motion between the rotating shaft and the fluid film to generate the necessary lubrication and support the load. They have a lower load capacity compared to hydrostatic bearings.
2. Speed:
- Hydrostatic bearings: Hydrostatic bearings can operate at higher speeds due to the pressurized fluid film that separates the surfaces, reducing friction and heat generation.
- Hydrodynamic bearings: Hydrodynamic bearings have limitations on speed due to the reliance on relative motion for lubrication. Higher speeds can lead to insufficient lubrication and increased friction.
3. Accuracy:
- Hydrostatic bearings: Hydrostatic bearings provide greater accuracy due to the pressurized fluid film, which minimizes any shaft deflection or misalignment.
- Hydrodynamic bearings: Hydrodynamic bearings may experience slight misalignment or deflection due to the reliance on fluid motion for support, leading to reduced accuracy.
4. Lubrication:
- Hydrostatic bearings: Hydrostatic bearings require a constant supply of pressurized lubricant to maintain the fluid film and support the load effectively.
- Hydrodynamic bearings: Hydrodynamic bearings rely on the relative motion between the rotating shaft and the fluid film to generate the necessary lubrication, eliminating the need for an external lubricant supply.
Conclusion:
Considering the factors such as load capacity, speed, accuracy, and lubrication, hydrostatic bearings are preferred over hydrodynamic bearings when the cost factor is excluded. Hydrostatic bearings offer higher load capacity, higher speed capabilities, better accuracy, and require an external lubricant supply. However, it is important to note that the cost factor plays a significant role in the selection of bearings for most applications, and hydrodynamic bearings are often preferred due to their lower cost.
Introduction:
Bearings are mechanical components that enable relative motion between two parts while reducing friction and supporting loads. Hydrostatic and hydrodynamic bearings are two common types of bearings used in various applications. The preferred type of bearing depends on several factors such as load capacity, speed, accuracy, lubrication, and cost. However, if we exclude the cost factor, hydrostatic bearings are generally preferred over hydrodynamic bearings.
Explanation:
1. Load capacity:
- Hydrostatic bearings: Hydrostatic bearings use a pressurized fluid film to support the load, providing a high load capacity.
- Hydrodynamic bearings: Hydrodynamic bearings rely on the relative motion between the rotating shaft and the fluid film to generate the necessary lubrication and support the load. They have a lower load capacity compared to hydrostatic bearings.
2. Speed:
- Hydrostatic bearings: Hydrostatic bearings can operate at higher speeds due to the pressurized fluid film that separates the surfaces, reducing friction and heat generation.
- Hydrodynamic bearings: Hydrodynamic bearings have limitations on speed due to the reliance on relative motion for lubrication. Higher speeds can lead to insufficient lubrication and increased friction.
3. Accuracy:
- Hydrostatic bearings: Hydrostatic bearings provide greater accuracy due to the pressurized fluid film, which minimizes any shaft deflection or misalignment.
- Hydrodynamic bearings: Hydrodynamic bearings may experience slight misalignment or deflection due to the reliance on fluid motion for support, leading to reduced accuracy.
4. Lubrication:
- Hydrostatic bearings: Hydrostatic bearings require a constant supply of pressurized lubricant to maintain the fluid film and support the load effectively.
- Hydrodynamic bearings: Hydrodynamic bearings rely on the relative motion between the rotating shaft and the fluid film to generate the necessary lubrication, eliminating the need for an external lubricant supply.
Conclusion:
Considering the factors such as load capacity, speed, accuracy, and lubrication, hydrostatic bearings are preferred over hydrodynamic bearings when the cost factor is excluded. Hydrostatic bearings offer higher load capacity, higher speed capabilities, better accuracy, and require an external lubricant supply. However, it is important to note that the cost factor plays a significant role in the selection of bearings for most applications, and hydrodynamic bearings are often preferred due to their lower cost.
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If we exclude the cost factor, which bearing is preferred?a)Hydrostaticb)Hydrodynamicc)Both are equally preferredd)Cannot be determinedCorrect answer is option 'A'. Can you explain this answer?
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If we exclude the cost factor, which bearing is preferred?a)Hydrostaticb)Hydrodynamicc)Both are equally preferredd)Cannot be determinedCorrect 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 If we exclude the cost factor, which bearing is preferred?a)Hydrostaticb)Hydrodynamicc)Both are equally preferredd)Cannot be determinedCorrect 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 If we exclude the cost factor, which bearing is preferred?a)Hydrostaticb)Hydrodynamicc)Both are equally preferredd)Cannot be determinedCorrect answer is option 'A'. Can you explain this answer?.
If we exclude the cost factor, which bearing is preferred?a)Hydrostaticb)Hydrodynamicc)Both are equally preferredd)Cannot be determinedCorrect 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 If we exclude the cost factor, which bearing is preferred?a)Hydrostaticb)Hydrodynamicc)Both are equally preferredd)Cannot be determinedCorrect 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 If we exclude the cost factor, which bearing is preferred?a)Hydrostaticb)Hydrodynamicc)Both are equally preferredd)Cannot be determinedCorrect answer is option 'A'. Can you explain this answer?.
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