Podcast
Questions and Answers
What are the most satisfactory velocities for line shafting and machine belts in factory practice?
What are the most satisfactory velocities for line shafting and machine belts in factory practice?
1,000 to 3,000 fpm
What are the velocities used for large power transmission with pulley bearings mounted on solid foundations?
What are the velocities used for large power transmission with pulley bearings mounted on solid foundations?
5,000 and 6,000 fpm
What are critical speeds in belts indicated by?
What are critical speeds in belts indicated by?
Belt riding from side to side on the pulley face and violent flapping of the slack side.
What factors determine the power transmitted by any belt?
What factors determine the power transmitted by any belt?
How can critical speed issues in belts be remedied?
How can critical speed issues in belts be remedied?
What governs the transmitting power in belts?
What governs the transmitting power in belts?
What is the advantage of split-cast iron pulleys over solid cast-iron pulleys?
What is the advantage of split-cast iron pulleys over solid cast-iron pulleys?
What is the benefit of wood pulleys over cast iron pulleys in terms of power transmission?
What is the benefit of wood pulleys over cast iron pulleys in terms of power transmission?
Why is it recommended to have face widths of 10 inches or over for cast iron pulleys?
Why is it recommended to have face widths of 10 inches or over for cast iron pulleys?
In what conditions should wood pulleys not be used?
In what conditions should wood pulleys not be used?
How does the weight of steel pulleys compare to cast-iron pulleys?
How does the weight of steel pulleys compare to cast-iron pulleys?
What is the typical percentage of slip difference between steel pulleys and cast-iron pulleys?
What is the typical percentage of slip difference between steel pulleys and cast-iron pulleys?
What is the recommended maximum speed for steel pulleys?
What is the recommended maximum speed for steel pulleys?
What is the recommended maximum speed for wood pulleys with certain construction?
What is the recommended maximum speed for wood pulleys with certain construction?
What is the minimum pulley face width recommended for belts over 24 inches wide?
What is the minimum pulley face width recommended for belts over 24 inches wide?
How are standard pulleys crowned?
How are standard pulleys crowned?
What can decrease the power-transmitting capacity of a belt at high velocities?
What can decrease the power-transmitting capacity of a belt at high velocities?
What happens to the power of a belt at higher velocities according to Eq.(16-9)?
What happens to the power of a belt at higher velocities according to Eq.(16-9)?
What is the formula for power transmitted in terms of torque?
What is the formula for power transmitted in terms of torque?
What factors are considered in the method of belt selection according to the American Leather Belting Association?
What factors are considered in the method of belt selection according to the American Leather Belting Association?
Why does the power transmitting capacity of the drive decrease in high speed ratio and short center distance drives?
Why does the power transmitting capacity of the drive decrease in high speed ratio and short center distance drives?
What is the recommended minimum arc of contact in a drive according to practice?
What is the recommended minimum arc of contact in a drive according to practice?
What should the arc of contact be in a drive for optimal performance?
What should the arc of contact be in a drive for optimal performance?
What is the standardized procedure adopted by the American Leather Belting Association for belt selection?
What is the standardized procedure adopted by the American Leather Belting Association for belt selection?
Why is a fastener required at the joint of a belt?
Why is a fastener required at the joint of a belt?
What happens to the horsepower capacity of a two-ply belt compared to a single-ply belt of the same thickness?
What happens to the horsepower capacity of a two-ply belt compared to a single-ply belt of the same thickness?
Why are vertical belt drives less efficient than horizontal drives?
Why are vertical belt drives less efficient than horizontal drives?
What should be done when using crossed belts wider than 8 inches?
What should be done when using crossed belts wider than 8 inches?
Why should the power transmitted by an inclined belt be reduced as the degree of inclination increases?
Why should the power transmitted by an inclined belt be reduced as the degree of inclination increases?
What does laboratory testing and service experience show about the capacity of a triple-ply belt compared to a single-ply belt of the same thickness?
What does laboratory testing and service experience show about the capacity of a triple-ply belt compared to a single-ply belt of the same thickness?
