Electricity for Refrigeration, Heating, and Air Conditioning
9th Edition
ISBN: 9781285179988
Author: Russell E. Smith
Publisher: Cengage Learning
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List any four technical reasons why ball and roller bearings need to lubricated
1. Explain about open belt drives and cross belt drives
2 -Write the advantages, disadvantages and applications of ball bearings
disadvantages of bearings?
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- True or False? Many armature bearings are held in the case by a retainer, whereas bushings are typically pressed out and into their bore.arrow_forwardWhich of the following is considered as the purpose why bearings are lubricated? a. To protect the bearing component from corrosion. b. To carry heat away from the bearing unit c. To help dissipate heat from the bearing unit. d. To provide low-friction film at the point of contact of rolling elements. e. All of the above.arrow_forwardWrite down any four methods to overcome friction? With a neat sketch write short notes on any twotypes of solid bearings? (overcome friction solid bearing sketch & short notes)arrow_forward
- Explain any one type of coupling which can be used to connect two steel shafts when there is an angular misalignment between the axis of the shafts.arrow_forwardTechnician A says that bearings that take radial loads are called Torrington washers. Technician B says that bearings that take axial loads are called thrust washers. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardThe minimum bearing life is the life that 10% of bearings will achieve or exceed before they fail due to fatigue. Select one: True Falsearrow_forward
- Rolling contact bearings are also known as anti-friction bearings. Select one: True Falsearrow_forwardCompare different types of couplings and their advantagesarrow_forwardList the types of belt drives and chain drives, their operating principle, and their advantages (at least one foreach type).arrow_forward
- Explain any one type of coupling which can be used to connect two aluminum alloy shafts when there is a lateral misalignment between the axis of the shafts.arrow_forwardTRUE OR FALSE ? Question : When both are optimized for their respective conditions of service, sliding bearings generally last longer than ball bearings.arrow_forwardThe drive shaft component that provides a means ofconnecting two or more shafts together is the __ .a. pinion flangeb. U-jointc. yoked. biscuitarrow_forward
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