本书是美国Robert L. Mott教授所著Machine Elements in Mechanical Design（Fourth Edition，2004）的缩编版。缩编者在保持原书特色和风格的前提下，根据我国机械设计课程的教学要求，删去了原书中与我国其他先修课程重复的部分内容，将原书23章缩编为16章，并将计量单位转换为公制。缩编后的内容包括：机械设计概论，带传动与链传动，齿轮传动与蜗杆传动，轴，轴联接件（键、联轴器、密封），滚动轴承，滑动轴承，紧固件，弹簧，机座，离合器与制动器，设计大作业等。
本书可作为高等学校工科机械类专业机械设计课程的双语教学教材，也可供从事机械专业的教师、研究生或工程技术人员参考。

PATRⅠPrinciples of Design and Stress Analysis
　1 The Nature of Mechanical Design
　　The Big Picture
　　You Are the Designer
　　　1-1 Objectives of This Chapter
　　　1-2 The Mechanical Design Process
　　　1-3 Skills Needed in Mechanical Design
　　　1-4 Functions, Design Requirements, and Evaluation Criteria
　　　1-5 Example of the Integration of Machine Elements into a Mechanical Design
　　　1-6 Computational Aids in This Book
　　　1-7 Design Calculations
　　　1-8 Unit Systems
　　References
　　Problems
　2 Materials in Mechanical Design
　　The Big Picture
　　You Are the Designer
　　　2-1 Objectives of This Chapter
　　　2-2 Properties of Materials
　　　2-3 Classification of Metals and Alloys
　　　2-4 Variability of Material Properties Data
　　　2-5 Carbon and Alloy Steel
　　　2-6 Conditions for Steels and heat Treatment
　　　2-7 Materials Selection
　　References
　　Problems
　3 Design for Different Types of Loading
　　The Big Picture
　　　3-1 Objectives of This Chapter
　　　3-2 Types of Loading and Stress Ratio
　　　3-3 Endurance Strength
　　　3-4 Estimated Actual Endurance Strength,
　　　3-5 Example Problems for Estimating Actual Endurance Strength
　　　3-6 Design Philosophy
　　　3-7 Design Factors
　　　3-8 Predictions of Failure
　　　3-9 Design Analysis Methods
　　　3-10 General Design Procedure
　　　3-11 Design Examples
　　　3-12 Statistical Approaches to Design
　　　3-13 Finite Life and Damage Accumulation Method
　　References
　　Problems
PATRⅡDesign of a Mechanical Drive
　4 Belt Drives and Chain Drives
　　The Big Picture
　　You Are the Designer
　　　4-1 Objectives of This Chapter
　　　4-2 Types of Belt Drives
　　　4-3 V-Belt Drives
　　　4-4 V-Belt Drive Design
　　　4-5 Chain Drives
　　　4-6 Design of Chain Drives
　　References
　　Problems
　5 Spur Gear Design
　　The Big Picture
　　You Are the Designer
　　　5-1 Objectives of This Chapter
　　　5-2 Spur Gear Nomenclature and Gear-Tooth Features
　　　5-3 Forces, Torque, and Power in Gearing
　　　5-4 Gear Manufacture
　　　5-5 Gear Quality
　　　5-6 Allowable Stress Numbers
　　　5-7 Metallic Gear Materials
　　　5-8 Stresses in Gear Teeth
　　　5-9 Selection of Gear Material Based on Bending Stress
　　　5-10 Pitting Resistance of Gear Teeth
　　　5-11 Selection of Gear Material Based on Contact Stress
　　　5-12 Design of Spur Gears
　　　5-13 Gear Design for the Metric Module System
　　　5-14 Computer-Aided Spur Gear Design and Analysis
　　　5-15 Use of the Spur Gear Design Spreadsheet
　　　5-16 Power-Transmitting Capacity
　　　5-17 Practical Considerations for Gears and Interfaces with Other Elements
　　References
　　Problems
　6 Helical Gears, Bevel Gears, and Wormgearing
　7 Keys, Couplings, and Seals
　8 Shaft Design
　9 Rolling Contact Bearings
　10 Completion of the Design of a Power Transmission
PATRⅢDesign Details and Other Machine Elements
　11 Plain Surface Bearings
　12 Fasteners
　13 Springs
　14 Machine Frames, Bolted Connections, and Welded Joints
　15 Motion Control: Clutches and Brakes
　16 Design Projects
Appendices
Appendix 1 Preferred Basic Sizes and Screw Threads
Appendix 2 Design Properties of Carbon and Alloy Steels
Appendix 3 Properties of Heat-Treated Steels
Appendix 4 Properties of Carburized Steels
Appendix 5 Beam-Deflection Formulas
Appendix 6 Stress Concentration Factors
Appendix 7 Conversion Factors
Appendix 8 Hardness Conversion Table
Answers to Selected Problems