review clutches and brakes Flashcards
What positive clutch transmit the most power?
Multi tooth
What is dynamic braking?
Slowing a moving machine down.
What is the disadvantage of a electromagnetic clutch/ friction clutch?
Cannot transmit as much power
What is a disadvantage of a positive contact clutch?
High speeds/ shock loads from other machines.
What isthe difference between block brake and external brake?
Block brake one pad,external has 2 pads
Which design of clutch plates make it easy to replace them?
Segment clutch plates
Which is General speed required engagement for positive contact clutches?
Low speed
What are some applications for one way clutch?
Indexing, backstops,holdbacks, overunning.
Which electromagnetic can transmit high horse power at high speeds?
Eddt current
Which clutch has an incline slope?
Roller ramp clutch
Over centred mechanism does what?
Maintains engagement
What is the difference between hydraulic brakes/?
Brake the output is held stationary.
What I’d the limitation to hydraulic brake?
Not capable of holding the load, only can control the speed.
How do brakes work?
They turn mechanical energy into heat energy
