Firefighters, law enforcement officers, and emergency medical personnel play a
critical role in protecting people and property in the event of fires, natural disasters,
medical emergencies, and actions by terrorists and other criminals. This
report presents an overview of occupational hazards and personal protection
needs as viewed by emergency responders in the United States.
K. S. Edwards, Ph.D. Professor of Mechanical Engineering University of Texas at El Paso El Paso, Texas
36.1 INTRODUCTION / 36.2 36.2 KINEMATICS / 36.3 36.3 VELOCITY AND FRICTION / 36.5 36.4 FORCE ANALYSIS / 36.5 36.5 STRENGTH AND POWER RATING / 36.9 36.6 HEAT DISSIPATION / 36.12 36.7 DESIGN STANDARDS / 36.13 36.8 DOUBLE-ENVELOPING GEAR SETS /36.18 REFERENCES / 36.22 ADDITIONAL REFERENCE / 36.22
GLOSSARY OF SYMBOLS bG C d d0 dR D Db D0 D1 / hk ht L mG m0 mp nw nG Dedendum of gear teeth Center distance Worm pitch diameter Outside diameter of worm Root...