Clutches And Brakes

Question 1

What are the 3 forms of transmission?

Answer 1

1. Mechanical lockup
2. Electromagnetic
3. Friction

Question 2

What are the four activation methods?

Answer 2

1.mechanical
2. pneumatic
3. hydraulic
4. electro magnetic

Question 3

What is selection criteria?

Answer 3

friction forces
Heat dissipation

Question 4

friction type

Answer 4

Most common for starting and stopping

Question 5

ElectroMagnetic

Answer 5

Magnetic particle design
Light to moderate loads
Hi slip factor

Question 6

Eddy current

Answer 6

Must be DC
Must have rotation

Question 7

Mechanical lock up interfaces

Answer 7

direct, mechanical connection
One of the oldest methods

Question 8

Square jaw

Answer 8

Super slow speeds for engagement
Bi-directional

Question 9

Spiral jaw

Answer 9

One Direction
Can be engaged in motion up to 150 RPM

Question 10

Multi tooth

Answer 10

Same as square jaw
Newer design,

Question 11

Wrap spring

Answer 11

One direction
Light duty instrumentation

Question 12

Sprague

Answer 12

One direction
Overrunning-torque in One Direction, free spin in other
Like a ratchet

Question 13

Ramp and roller

Answer 13

Similar to sprague
Uses roller ball spring plunger
One way clutch

Question 14

Centrifugal

Answer 14

Speed goes up so does torque
Self actuated