belts A Flashcards
How do v bend transmit power?
By the grip on the side’s of the the sheave groove.
What is the purpose of the tensile members in a belt?
They carry the load.
What 2 safety precautions should you take before you begin work on a belt?
De-energize, lock out.
List 2 main reasons for cleaning sheeves?
To inspect for cracks, for dynamic balance.
What are two main reasons for using bent drive instead of chain ?
No lubrication is required, they are the most cost effective means of power transmission.
In which application would you find a link belt?
They can be installed in places where it is difficult or impossible to install endless belts.
Tensile members do what?
Consist of cords that carry the load.
Compression martial does what?
Transmits the power between the sheave and the tensile member and supports the cords.
The cover does what on the belt?
Protects the internal parts from wear, weather, and harmful substance.
The amount of power a belt can transmit depends on what?
The arc of contact.
Friction depends on what factor?
Coefficient of friction.
Four variations were developed from standard classical series they are?
Cogged raw edge ax bx cx. Banded, joined classical B,C,D. Double v AA,BB,CC. fractional horsepower 2L,3L,4L,5L,
Cogged raw edge belts cannot be subjected to reverse bending true or false?
True
12 28 V 255 belt means what?
12= top width 12/16=3/4. 28° groove angle. V v shape. 255 pitch length 25.5”
Open end belts have the following limitations?
They can carry only 1/3 of the load of a corresponding endless belt.
