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cast-iron roller FIGURE P11-3 Shaft Design for Problems 11-17 Chapter 11 BEARINGS AND LUBRICATION 677 gear key P assume bearings act as simple supports 11-18 Problem 7-18 determined the half-width of the contact patch for a 1.575-in-dia steel cylinder, 9.843 in long, rolled against a flat aluminum plate with 900 lb of force to be 0.0064 in. If the cylinder rolls at 800 rpm, determine its lubrication condition with ISO VG 1000 oil at 200°F. R₁ = 64 μin (cylinder); R₁ = 32 μin (plate). 11-19 The shaft shown in Figure P11-4 was designed in Problem 10-19. For the data in the row(s) assigned from Table P11-1, and the corresponding diameter of shaft found in Problem 10-19, design suitable bearings to support the load for at least 5E8 cycles at 1200 rpm. State all assumptions. (a) (b) Using hydrodynamically lubricated bronze sleeve bearings with ON = 40, 1/ d=0.80, and a clearance ratio of 0.002 5. Using deep-groove ball bearings for a 10% failure rate. *11-20 Problem 7-20 determined the half-dimensions of the contact patch for a 0.787-in-dia steel ball rolled against a 1.575-in-dia steel cylinder with 2 248 lb force to be a = 0.037 in and b = 0.028 in. The ball rolls at 1 800 rpm. Determine its lubrication condition with ISO VG 460 oil at 120°F. Assume R₂ = 32 uin for both. 11 P1 gear P2 gear key T b FIGURE P11-4 Shaft Design for Problems 11-19 and 11-22 assume bearings act as simple supports *Answers to these problems are provided in Appendix D. Problem numbers in italics are design problems. Problem numbers in boldface are extended from similar problems in earlier chapters with the same dash number.

cast-iron roller FIGURE P11-3 Shaft Design for Problems 11-17 Chapter 11 BEARINGS AND LUBRICATION 677 gear key P assume bearings act as simple supports 11-18 Problem 7-18 determined the half-width of the contact patch for a 1.575-in-dia steel cylinder, 9.843 in long, rolled against a flat aluminum plate with 900 lb of force to be 0.0064 in. If the cylinder rolls at 800 rpm, determine its lubrication condition with ISO VG 1000 oil at 200°F. R₁ = 64 μin (cylinder); R₁ = 32 μin (plate). 11-19 The shaft shown in Figure P11-4 was designed in Problem 10-19. For the data in the row(s) assigned from Table P11-1, and the corresponding diameter of shaft found in Problem 10-19, design suitable bearings to support the load for at least 5E8 cycles at 1200 rpm. State all assumptions. (a) (b) Using hydrodynamically lubricated bronze sleeve bearings with ON = 40, 1/ d=0.80, and a clearance ratio of 0.002 5. Using deep-groove ball bearings for a 10% failure rate. *11-20 Problem 7-20 determined the half-dimensions of the contact patch for a 0.787-in-dia steel ball rolled against a 1.575-in-dia steel cylinder with 2 248 lb force to be a = 0.037 in and b = 0.028 in. The ball rolls at 1 800 rpm. Determine its lubrication condition with ISO VG 460 oil at 120°F. Assume R₂ = 32 uin for both. 11 P1 gear P2 gear key T b FIGURE P11-4 Shaft Design for Problems 11-19 and 11-22 assume bearings act as simple supports *Answers to these problems are provided in Appendix D. Problem numbers in italics are design problems. Problem numbers in boldface are extended from similar problems in earlier chapters with the same dash number.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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cast-iron roller FIGURE P11-3 Shaft Design for Problems 11-17 Chapter 11 BEARINGS AND LUBRICATION 677 gear key P assume bearings act as simple supports 11-18 Problem 7-18 determined the half-width of the contact patch for a 1.575-in-dia steel cylinder, 9.843 in long, rolled against a flat aluminum plate with 900 lb of force to be 0.0064 in. If the cylinder rolls at 800 rpm, determine its lubrication condition with ISO VG 1000 oil at 200°F. R₁ = 64 μin (cylinder); R₁ = 32 μin (plate). 11-19 The shaft shown in Figure P11-4 was designed in Problem 10-19. For the data in the row(s) assigned from Table P11-1, and the corresponding diameter of shaft found in Problem 10-19, design suitable bearings to support the load for at least 5E8 cycles at 1200 rpm. State all assumptions. (a) (b) Using hydrodynamically lubricated bronze sleeve bearings with ON = 40, 1/ d=0.80, and a clearance ratio of 0.002 5. Using deep-groove ball bearings for a 10% failure rate. *11-20 Problem 7-20 determined the half-dimensions of the contact patch for a 0.787-in-dia steel ball rolled against a 1.575-in-dia steel cylinder with 2 248 lb force to be a = 0.037 in and b = 0.028 in. The ball rolls at 1 800 rpm. Determine its lubrication condition with ISO VG 460 oil at 120°F. Assume R₂ = 32 uin for both. 11 P1 gear P2 gear key T b FIGURE P11-4 Shaft Design for Problems 11-19 and 11-22 assume bearings act as simple supports *Answers to these problems are provided in Appendix D. Problem numbers in italics are design problems. Problem numbers in boldface are extended from similar problems in earlier chapters with the same dash number.
Transcribed Image Text:cast-iron roller FIGURE P11-3 Shaft Design for Problems 11-17 Chapter 11 BEARINGS AND LUBRICATION 677 gear key P assume bearings act as simple supports 11-18 Problem 7-18 determined the half-width of the contact patch for a 1.575-in-dia steel cylinder, 9.843 in long, rolled against a flat aluminum plate with 900 lb of force to be 0.0064 in. If the cylinder rolls at 800 rpm, determine its lubrication condition with ISO VG 1000 oil at 200°F. R₁ = 64 μin (cylinder); R₁ = 32 μin (plate). 11-19 The shaft shown in Figure P11-4 was designed in Problem 10-19. For the data in the row(s) assigned from Table P11-1, and the corresponding diameter of shaft found in Problem 10-19, design suitable bearings to support the load for at least 5E8 cycles at 1200 rpm. State all assumptions. (a) (b) Using hydrodynamically lubricated bronze sleeve bearings with ON = 40, 1/ d=0.80, and a clearance ratio of 0.002 5. Using deep-groove ball bearings for a 10% failure rate. *11-20 Problem 7-20 determined the half-dimensions of the contact patch for a 0.787-in-dia steel ball rolled against a 1.575-in-dia steel cylinder with 2 248 lb force to be a = 0.037 in and b = 0.028 in. The ball rolls at 1 800 rpm. Determine its lubrication condition with ISO VG 460 oil at 120°F. Assume R₂ = 32 uin for both. 11 P1 gear P2 gear key T b FIGURE P11-4 Shaft Design for Problems 11-19 and 11-22 assume bearings act as simple supports *Answers to these problems are provided in Appendix D. Problem numbers in italics are design problems. Problem numbers in boldface are extended from similar problems in earlier chapters with the same dash number.
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