For this textbook, information has been obtained from various sources such as books, catalogues and journals. I would like to express my gratitude to the authors, publishers and firms, who have permitted me to use their valuable material in this textbook. The following firms and individuals need special mention:

1. Mr. A.A. Raimondi of Westinghouse Electric Corporation, USA for the data on ‘Dimensionless Performance Parameters of Hydrodynamic Bearings’.

2. Prof. George Sines, University of California, USA for the ‘Notch Sensitivity Charts’ in Fatigue Design.

3. Mr. B.K. Sollars, President, Diamond Chain Company, USA for his valuable suggestions and Design Data related to the selection of roller chain.

4. McGraw-Hill Education, USA for their permission to include the table of ‘Reliability Factors’ from their publication ‘Mechanical Engineering Design’ by J. E. Shigley and ‘Surface Finish Factors’ in Fatigue Design from ‘Engineering Considerations of Stress, Strain and Strength’ by R. C. Juvinall.

5. Associated Bearing Company Limited, Bombay for their permission to include different tables for the selection of SKF bearings.

6. The Dunlop Rubber Co. (India) Ltd, Calcutta for their permission to include data for the ‘Selection of Dunlop belts’.

7. The Bureau of Indian Standards, New Delhi for its permission to include extracts from standards- IS-4218, IS-7008, IS-919, IS-1570, IS-2644, IS-733, IS-2403, IS-3681, IS-2266, IS-3973, IS-5129, IS-4454, IS-4694, IS-210, IS-1030, IS-617, IS-813, IS-25, IS-2825, IS-2365, IS-2494 and IS-7443.

I acknowledge with a deep sense of gratitude, the encouragement received from my teacher and guide Dr. D. K. Joshi, formerly Head of Mechanical Engineering Department, College of Engineering, Pune. Credit to a great measure goes to my colleagues Dr. P. P. Chikate, College of Engineering, Pune and Prof. P. S. Gokhale, Bharati Vidyapeeth, Pune for their suggestions and constant encouragement.

V B BHANDARI