为尽可能地统筹兼顾，本书编者以国外优秀原版教材作为基本框架，以规范、流畅、地道的语言，采编贴近国内教学大纲的基本要求的内容，使学生能够利用英语作为学习工具充分掌握机械设计基本知识。本书以培养学生机械设计基本理论为主线，介绍通用机械零部件的工作原理、结构特点、基本设计理论和设计计算方法，同时也注重综合机械设计能力的培养。

本书以繁简适当的基本课程内容和体系为特色，文字叙述力求规范、通俗易懂，尽量兼顾到教师英语授课的便利和学生的课堂理解，便于国内双语教学的开展，也适合英文水平较好并有一定机械零件设计基础的学生自学使用。

Design of Machine Elements is particularly written for bilingual machine design course to Chinese students with a balanced consideration of the basic requirements of the course and the students' English proficiency.Hopefully the students can learn not only the skills of machine design but also the usage of English, thus strengthening their ability of solving practical mechanical engineering problems and meeting the challenge of globalization.

There are thirteen chapters in this book. The first three chapters discuss the general concerns of machine design, fundamentals of strength design, and introduction of tribology, respectively. The following chapters deal with the design of various specific machine elements, namely, shafting, sliding bearings, rolling-element bearings, posset screws, threaded joints, springs, gears, worm gears, brakes and clutches, and belt drives.

This book can be used as a textbook for teachers and students in mechanical engineering specialty or as a reference for the advanced-level students and the practicing engineers as well.

Chapter 1 Introduction

Chapter 2 Fundamentals for Strength Design

Chapter 3 Introduction to Tribology

Chapter 4 Power Transmission Shafting, Couplings, Keys and Splines

Chapter 5 Sliding Bearings

Chapter 6 Rolling Element Bearings

Chapter 7 Power Screw Assemblies

Chapter 8 Threaded Joints

Chapter 9 Springs

Chapter 10 Gears

Chapter 11 Worm Gears

Chapter 12 Brakes and Clutches

Chapter 13 Belt Drives

Appendix

References