SHIGLEY'S MECH.ENGINEERING DESIGN-EBK>I
10th Edition
ISBN: 9781259489563
Author: BUDYNAS
Publisher: INTER MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 12, Problem 12P
(a)
To determine
The magnitude of the minimum oil film thickness.
The location of minimum oil film thickness.
(b)
To determine
The eccentricity.
(c)
To determine
The coefficient of friction.
(d)
To determine
The rate of power loss.
(e)
To determine
The total oil flow rate.
The side oil flow rate.
(f)
To determine
The maximum oil film pressure.
The angular location of the maximum oil film pressure.
(g)
To determine
The terminating position of the oil film.
(h)
To determine
The average temperature of the side flow.
(i)
To determine
The oil temperature at the terminating position of the oil film.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
15.)A full journal bearing has a journal diameter of 4.000in. with a unilateral tolerance of -0.004in. The bushing bore has a diameter of 4.004in and unilateral tolerance of +0.004in. the bearing is 3in long. The journal load is 3000 lbf and it runs at a speed of 400 rpm. What is the load per projected bearing area 9P) in psi?
Choose answer below
75
100
125
250
16.)For the bearing in problem #15, if the lubricant average viscosity is 9 ureym, what is the Sommerfield number (assuming minimum clearance)
Choose answer below
Between 0.6 and 0.7
Between 0.5 and 0.6
Between 0.3 and 0.4
Between 0.2 and 0.3
Q 2. A journal bearing has a shaft diameter of 75.00 mm with a unilateral tolerance of −0.02 mm. The bushing bore has a diameter of 75.10 mm with a unilateral tolerance of
0.06 mm. The bushing is 36 mm long and supports a load of 2 kN. The journal speed is 700 rev/min. For the minimum clearance assembly find the minimum film thickness, the heat loss rate, and the maximum lubricant pressure for SAE 30, SAE 40 and SAE 50 lubricants operating at an average film temperature of 60 °C.
It has a full-slide type bearing rotating at a speed of 1975 rpm.A load of 5693 N is applied. SAE 40 oil in bearing at 60C inlet temperatureplanned to be used.Shaft and bushing diameters in bearing with tolerance data 41−0.010 respectively+0.000mmand 41.125−0.000+0.100 mm.Average radial clearance mounting for this bearing with bush length 20.50 mmCalculate the following;a) Bearing characteristic number,b) Minimum lubricant film thickness,c) Eccentricity value,d) coefficient of friction,e) Average oil film temperature andf) Find the Tmax temperature value.
Chapter 12 Solutions
SHIGLEY'S MECH.ENGINEERING DESIGN-EBK>I
Ch. 12 - A full journal bearing has a journal diameter of...Ch. 12 - A full journal bearing has a journal diameter of...Ch. 12 - A journal bearing has a journal diameter of 3.000...Ch. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - A full journal bearing is 28 mm long. The shaft...Ch. 12 - A 114114 in sleeve bearing supports a load of 700...
Ch. 12 - A full journal bearing has a shaft diameter of...Ch. 12 - Prob. 12PCh. 12 - Prob. 13PCh. 12 - A natural-circulation pillow-block bearing with...Ch. 12 - An eight-cylinder diesel engine has a front main...Ch. 12 - A pressure-fed bearing has a journal diameter of...Ch. 12 - Design a central annular-groove pressure-fed...Ch. 12 - Repeat design problem Prob. 1218 using the nominal...Ch. 12 - Table 12-1 gives the Seireg and Dandage curve fit...Ch. 12 - For Prob. 1218 a satisfactory design is...Ch. 12 - An Oiles SP 500 alloy brass bushing is 0.75 in...Ch. 12 - Prob. 23P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A double square thread power screw is to raise a load of 70 kN. The screw has a mean diameter of 33.375 mm and a pitch of 6 mm. The coefficient of thread friction and collar friction are 0.13 and 0.10, respectively. The collar mean diameter is 90 mm and the screw turns at 90 rpm. Which of the following is the torque required to overcome the collar friction? Group of answer choices 630000 N mm 315000 N mm 819000 N mm 409500 N mmarrow_forwardA full journal bearing has a nominal diameter of 60.0 mm, a bearing length of 30.0 mm and supports a load of 3200 N when running at the design speed of 3200 rpm. The radial clearance has been specified as 0.04 mm. An SAE 20 oil has been chosen and the lubricant supply system is capable of delivering the lubricant to the bearing at 60oC. Using the Raimondi and Body design charts;1.1 find the temperature rise of the lubricant, (19)1.2 the total flow rate required, (1)1.3 the torque required to overcome friction (3)1.4 and the power dissipated in the bearing.arrow_forwardA connecting rod for an I.C. engine running at 1800 r.p.m. and developing a maximum pressure of 3.15 MPa. The diameter of the piston is 100 mm; mass of the reciprocating parts per cylinder 2.25 kg; length of connecting rod 380 mm; stroke of piston 190 mm and compression ratio 6:1. Take a factor of safety of 6 for the design. Take length to diameter ratio for big end bearing as 1.3 and small end bearing as 2 and the corresponding bearing pressures as 10 MPa and 15 MPa. The density of material of the rod may be taken as 8000 kg/m³ and the allowable stress in the bolts as 60 MPa and in cap as 80 MPa. The rod is to be of I-section for which you can choose your own proportions. Calculate the dimension of I- section of the connecting rod.arrow_forward
- b) Design a single row deep groove ball bearing with basic dynamic load rating of 33 KN to be used in a turbine to carry a radial load of 1584 N. The expected life of the bearing is 5591 hours at 529 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_forwardA single deep grove ball bearing series 3, the outer ring rotates at 1500 rpm with little shock load. Bearing has a bore diameter of 45 mm, working with a load 1890 lb radial and 1250 lb axial load. Determine the rated life and median life of the bearing. Use the design factors according to the attached table.arrow_forwardb) Design a self-aligning ball bearing with basic dynamic load rating of 69.5 KN to be used in the automobile industry to carry a thrust load of 1184 N. The expected life of the bearing is 5201 hours at 628 rpm. Take k=3 for all types of ball bearings. Take the value of the shock load factor as 1.7 and radial and axial load factors are 1.4 and 2.2 respectively, 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) Radial load acting on the bearing in Narrow_forward
- A conical Clutch transmits rotation from one rotating shaft to another though frictional forces on the conical face. The following data is for a conical clutchInside Diameter 25.0 mmOutside Diameter 100 mmCoefficient of Friction 0.33Axial Force 1000NIncluded angle 100 degreeRotational speed 1500rev/minuteCalculate the Torque and Power that can be transmitted without slipping using both Uniform Pressure Theory and Uniform Wear Theoryarrow_forwardA fan is driven by a belt from a motor which runs at 880 rpm. A medium double ply leather belt 5/16 inches thick and 10 inches wide is used. The diameters of the motor pulley and the driven pulley are 14 inches and 54 inches, respectively. The center distance is 54 inches and both pulleys are made of cast iron. Coefficient of friction of leather on cast iron is 0.35. The allowable stress of the belt is 350 psi and the belt weighs 0.035 lb/in^3. What is the horsepower capacity of the belt?arrow_forwardcampute the bending stress number for the goer pair described by the given data beLow. KS= 1, Km= 1,21, F= 2.00 in, DP= 3,33 in, NG= 70, Np=20 hp = 1750v. p.m, Av=11, Pd =6, Tp= 900ib V1= 1527 ft/min The matarial used for pinion a gear is cast ironarrow_forward
- A conical clutch has an included angle of 105°. The outer and inner diameters are 110mm and 40 mm, respectively, and the coefficient of friction is 0·35. Given the axialforce is 1200 N, determine the torque and power that can be transmitted at 600 rev/min,by each of the two theories:(a) The uniform pressure theory. 8(b) The uniform wear theoryarrow_forwardThory of machine: Select one of the following bearing for the load conditions. Radial load, F=3000 N, Axial load, F = 1600 N, RPM = 1000. (1) Deep Groove ball bearing dynamic load rating=47000 N radial bad factor, X=0.56 Axial load factor, Y= 1.83 (i) Cylindrical roller bearing Dynamic load rating 28000 N radial load factor, X=1.0 axial load factor, Y=0.0arrow_forwardA truck equipped with a 50 HP engine uses a roller chain as the final drive to the rear axle. The driving sprocket runs at 225 rpm with a center distance of approximately 500 fpm. The transmission efficiency between the engine and the driving sprocket is 85%. 1.1 Determine the pitch and width of chain to be used. 1.2 Determine the number of teeth in each sprocket and the pitch diameters.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
How to Measure Threads; Author: PracticalMachinist;https://www.youtube.com/watch?v=Uuy7EViS7Kc;License: Standard Youtube License