This book presents a comprehensive treatment of the principles used in the design and calculation of machine elements. It begins with the fundamental criteria governing the operating capacity of machine components, including strength, rigidity, resistance to vibration, and heating, before examining material selection, standardisation, and production soundness. The second part focuses on joints between machine elements, covering riveted, welded, interference-fit, threaded, cottered, keyed, splined, serrated, and keyless joints, with particular attention to their strength and design under different loading conditions.

The latter part deals with mechanical power transmission and the design of its principal components. It examines friction drives, belt and chain drives, gears and reduction gears, power screws, shafts and axles, and both sliding and rolling contact bearings. The book also addresses couplings and clutches, together with issues such as lubrication, efficiency, wear, fatigue, heating, vibration, and operating capacity. Overall, it provides a systematic engineering framework for selecting, analysing, and designing machine elements and power-transmission systems.

Translated from the Russian by A. Troitsky

Note: Some early pages 8-9 are missing

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CONTENTS

Introduction

PART ONE. FUNDAMENTALS OF DESIGNING MACHINE ELEMENTS

Chapter I. Criteria of Operating Capacity and Calculation of Machine Elements

1. Strength of Machine Elements
2. Volume Strength
3. Surface Strength
4. Rigidity of Machine Elements
5. Resistance to Vibration of Machine Elements
6. Heating of Machine Elements

Chapter II. Selection of Material

1. Comparative Evaluation of Various Materials by Weight
2. The Principle of “Local Quality” and Its Utilisation in the Selection of Materials
3. Reduction in the Range of the Materials Employed

Chapter III. Standardisation of Machine Elements

Chapter IV. Production Soundness of Machine Elements

PART TWO. JOINTS OF MACHINE ELEMENTS

Chapter V. Types of Joints and Their Principal Features

1. Types of Joints
2. Strength of Joints
3. Tightness of Joints
4. Stiffness of Joints

Chapter VI. Riveted Joints

1. The Functioning of Rivets in a Seam
2. Strength of Riveted Joint Elements
3. Calculation of Riveted Seams
4. Strong Seams
5. Tight-Strong Seams

Chapter VII. Welded Joints

1. Calculation of Welds
2. Welded Joints Designed for Static Load
3. Strength of Welds at Varying Load

Chapter VIII. Joints Formed by Interference Fits

Chapter IX. Threaded Joints

1. Types and Causes of Thread Failure
2. Strength under Static Load
3. Joints Designed without Initial Stress
4. Joints Designed with Initial Stress
5. Strength at Varying Loads (Endurance of Bolted Joints)
6. Calculation of Strength
7. Temperature Stresses in Threaded Joints
8. Load Distribution Between Threaded Parts in a Group Joint (Determination of Design Load in a Group Joint)

Chapter X. Cottered Fastenings

1. Cottered Joints
2. Pin Joints

Chapter XI. Key, Splined and Serrated, and Keyless (Shaped and Other) Joints

1. Keys
2. Calculation of Unstrained Joints
3. Calculation of Strained Joints
4. Multiple Splines
5. Keyless Joints

PART THREE. POWER TRANSMISSION

Chapter XII. Power Transmission Systems and Their Principal Features

1. Types of Drives
2. Drives with a Constant Velocity Ratio
3. Velocity Ratio
4. Peripheral Velocity
5. Transmitted Horsepower
6. Loss of Horsepower and Efficiency
7. Weight, Size and Cost of Drives
8. Drives with a Variable Velocity Ratio

Chapter XIII. Friction Drives

1. Fundamentals of the Theory and Operation of Friction Drives
2. Slip and Creep in Friction Drives
3. Pressure
4. Parts of Friction Drives
5. Calculation of Friction Drives
6. Design for Strength
7. Shaft Loads
8. Losses and Efficiency of Drives
9. Design for Heating

Chapter XIV. Belting

1. Fundamentals of the Theory and Operation of Belt Drives
2. Tension in a Flexible Cord Embracing a Cylinder
3. Elastic Creep
4. Velocity Ratio
5. Pull Factor
6. Tension Due to Centrifugal Forces
7. Stresses in Belts
8. Losses in Transmission
9. Components of Belt Drives
10. Belts
11. Pulleys
12. Belt Tension Adjusters
13. V-Belt Variable-Speed Drives
14. Calculation of Belt Drives
15. Geometry of Belt Drives
16. Calculating Belt Pull
17. Calculating Belt Service Life
18. Loads Carried by Shafts
19. Transmitted Horsepower and Efficiency of Belt Drives

Chapter XV. Gearing

1. Basic Rack
2. Accuracy of Gears
3. Components of Toothed Gears
4. Materials
5. Design of Pinions and Wheels
6. Types of Failure in Gear Teeth
7. Design of Straight-Tooth Spur Gears
8. Main Geometrical Proportions
9. Forces Acting in a Gear
10. Design Load
11. Calculation of Teeth for Surface Strength
12. Calculation of Teeth for Beam Strength
13. Lubrication and Efficiency
14. Design of Helical and Herringbone Spur Gears
15. Main Geometrical Proportions
16. Forces Acting in a Gear
17. Design Load
18. Calculation of Teeth for Surface Strength
19. Calculation of Teeth for Beam Strength
20. Design of Bevel Gears
21. Main Geometrical Proportions
22. Forces Acting in a Gear
23. Calculation of Teeth for Surface Strength
24. Calculation of Teeth for Beam Strength

Chapter XVI. Screw, Hypoid, Worm and Globoidal Gears

1. Screw Gears
2. Hypoid Gears
3. Worm Gears
4. Materials
5. Design of Worms and Wheels
6. Accuracy of Gears
7. Failures of Worm Wheel Teeth
8. Main Geometrical Proportions
9. Forces Acting in a Gear
10. Design Load
11. Design for Surface Strength
12. Design of Teeth for Bending
13. Lubrication and Efficiency
14. Globoidal Gears
15. Materials
16. Design of Worms and Wheels
17. Main Geometrical Proportions
18. Calculation of the Gear for Wear
19. Lubrication and Efficiency

Chapter XVII. Toothed and Worm Reduction Gears

1. Main Types of Reduction Gears
2. Designs of Reduction Gears
3. Lubrication and Calculation for Heating

Chapter XVIII. Chain Drives

1. Velocity Ratio
2. Chain Tension
3. Components of Chain Drives
4. Chains
5. Sprockets
6. Chain Housings and Slack Adjusters
7. Design of Drives
8. Kinds of Failure in Chain Drives
9. Determining Chain and Sprocket Proportions
10. Lubrication and Efficiency

Chapter XIX. Power Screws

1. Materials and Design of Screws and Nuts
2. Calculation of Power Screws

PART FOUR. SHAFTS AND AXLES, BEARINGS AND COUPLINGS AND CLUTCHES

Chapter XX. Shafts and Axles

1. Straight Shafts and Axles
2. Design
3. Kinds and Causes of Failure in Shafts and Axles and Defects in Operation
4. Materials for Shafts and Axles
5. Calculation for Strength
6. Calculation for Stiffness
7. Methods of Increasing the Endurance of Shafts and Axles
8. Transverse Vibrations of Shafts. Critical Shaft Velocity
9. Flexible Wire Shafts

Chapter XXI. Sliding Contact Bearings

1. Materials for Sliding Radial and Thrust Bearings
2. Metals
3. Nonmetallic Materials
4. Lubricants
5. Radial Bearings
6. Design
7. Calculation of Sliding Bearings
8. Thrust Bearings
9. Design
10. Calculation of Thrust Bearings
11. Lubricating Devices for Bearings
12. Methods of Increasing the Operating Capacity of Sliding Bearings

Chapter XXII. Rolling Contact Bearings

1. Fundamentals of the Theory of Antifriction Bearings
2. Load Distribution between Balls or Rollers
3. Stresses at Points of Contact of Bearing Components
4. Operating Capacity of Antifriction Bearings
5. Calculation of Antifriction Bearings
6. Calculation of Statically Loaded Bearings
7. Calculation of Dynamically Loaded Bearings
8. Mounting, Lubrication and Sealing of Antifriction Bearings
9. Methods of Increasing the Operating Capacity of Antifriction Bearings

Chapter XXIII. Couplings and Clutches

1. Couplings