Couplings Flashcards
What do couplings do?
Connect two shafts that turn in the same direction on the same centerline
What are the three major types of shaft couplings?
Rigid
Flexible
Universal Joint
What are the three types of rigid couplings?
Flange
Sleeve
Ribbed
What is the simplest type of coupling?
Rigid
What major type of coupling has the highest size for size torque transfer?
Rigid
Pros of Rigid couplings?
Low maintenance
No Lubricant
High torque transfer
Cons of Rigid couplings?
No machine protection
Must provide and maintain perfect alignment
Has to have proper bearing support
What rigid coupling connects the same or different diameter shafts accommodates some misalignment and has heavy duty applications?
Flange couplings
Pros of flange couplings?
No lube
Minimum maintenance (tighten bolts)
Easy install and removal
Couplings that connect the same or different size shafts has the least amount of torque transfer and uses set screws to keep from sliding on shaft?
Sleeve couplings
Rigid coupling with the most torque transfer, connect shafts of the same size, and maintenance free?
Ribbed couplings
What type of couplings allow some misalignment?
Flexible couplings
Three types of shaft misalignment?
Angular
Parallel
Axial (end play, end float)
What are some other functions of flexible couplings?
Protect equipment
Damper from shock and vibration
Insulate from thermal and electrical
Measure input and output speed
Are all general purpose coupling similar?
Yes considered “off the shelf”