Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Chapter 18, Problem 12RQ
To determine
The correct words to fill in the blanks in the given statement
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Which of the following type of bearing do you recommend for a household appliance (criterion of selection: Noise)?
Taper roller bearings
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Chapter 18 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 18 - Prob. 1RQCh. 18 - Power supply data should include the...Ch. 18 - Prob. 3RQCh. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - In the United States, the frequency in cycles per...Ch. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - An open single-phase motor with a centrifugal...Ch. 18 - Prob. 10RQ
Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Prob. 14RQCh. 18 - Prob. 15RQCh. 18 - What is a matched set of belts?Ch. 18 - Name the different types of belts.Ch. 18 - Prob. 18RQCh. 18 - An instrument often used to check the alignment of...Ch. 18 - Why must resilient-mount motors have a ground...Ch. 18 - A belt-driven blower assembly is equipped with a...Ch. 18 - Prob. 22RQCh. 18 - Prob. 23RQCh. 18 - Prob. 24RQ
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- The stresses in a powered screw include: ___________________________. True or False with explanation For both shaft design and spring design, the running frequency should be at least two times lower than the first mode of natural frequency. True_ False__. The major stress in a spring comes from the direct shear. True_ False__. The natural frequency of a spring can be reduced by reducing the weight of the wire. True_ False__. Considering the contact fatigue of a gear, the wear factor should be higher than the gear factor. True_ False__. The pitch of the body coil can be calculated from the number of active coils and the critical length of the spring. True_ False__arrow_forwardIndustrial Main Describe a plain bearing.arrow_forwardWords: Bearing, Bolts, Carrier, Case, Crown, Differential, Pinion, Preloaded, Shims, Spread, WheelThe differential side bearings are ________________ and this holds the differential case firmly in the housing. Whendismantling, the bearing mountings are usually ________________ slightly to relieve the preload so that the differential________________ with the crown wheel can be easily removed. The sequence is:1 Mark the left-hand and right-hand ________________ caps to identify their positions for reassembly.2 Remove the bearing cap ________________ and remove the bearing caps.3 Fit a spreader tool to the ________________ housing.4 Adjust the nut on the spreading tool to spread the housing so that the ________________ wheel and differential casecan be removed from the ________________.5 Remove the crown ________________ and differential case and release the spreader.6 Identify the right and left bearing cups and ________________ or spacers so that they can be correctly located…arrow_forward
- The drive shaft component that provides a means ofconnecting two or more shafts together is the __ .a. pinion flangeb. U-jointc. yoked. biscuitarrow_forwardWhen trying to accommodate only axial loading, which of the following bearings is most likely to be used? a. Tapered roller bearing b. Deep groove ball bearing c. Thrust bearing d. Needle bearing e. Spherical bearingarrow_forwardwhen would a noisy input shaft bearing be more noticable?arrow_forward
- When the rotating shaft works, it mainly bears_____.A. Pure torque .B. Pure bending momentC. Torque and bending moment D. Friction torquearrow_forwardIn 40 seconds, the crankshaft of a truck engine operating at _______rpm turn thru 8000 radians.arrow_forwardWhen would a noisy input shaft bearing be more noticeable ?arrow_forward
- A H7/h6 hole/shaft combination denotes clesence tE a. Press fit b. Push fit Running fit 77/57 C. d. Force fitarrow_forwardWeight and Balance Find the Empty Weight CG location for the following tricycle gear aircraft. Each main wheel weighs 753 pounds, nose wheel weighs 22 pounds, distance between nose wheel and main wheels is 87.5 inches, nose wheel location is +9.875 inches from the datum, with 1 gallon of hydraulic fluid at –21 inches included in the aircraft weight. EWCG is _________________arrow_forward26 a) i) Explain the meaning of all the digits of a roller bearing having a bearing number "26BC04" according to AFBMA. ii) Write any three functions of bearings considering the bearings as a mechanical element. b) Design a single row deep groove ball bearing with basic dynamic load rating of 28.5 KN to be used in a turbine to carry a radial load of 1634 N. The expected life of the bearing is 5258 hours at 504 rpm. Take k=3 for all types of ball bearings. Take the value of the shock load factor as 1.8. The radial and axial load factors are 1.3 and 1.6 respectively and the rotational factor is 1. Calculate: i) Expected life of bearings in millions of revolutions ii) Design equivalent dynamic load in N iii) Basic equivalent dynamic load in N iv) Axial load acting on the bearing in Narrow_forward
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