Supplemental Specialty Coupling Forms
Stainless Steel
Nylon Sleeves
Higher Pace RAHS Style
Brake Drum FBD and FBW Types
Insulated FI Sort
Vertical Floating Shaft FVFS Variety
F Fashion Cutout Shifter FCS 
Type
Mill Motor FAMM Style
Initially hub developed with longer universal hub on one particular end to accommodate straight or tapered shafts
Second hub bored to customer specs
Regular design accommodates AISE Mill Motor frame sizes
Sleeves and 2nd hub are standard
Single engagement FAFR Variety
Single engagement (‘FFR’ Flex-Rigid) accommodates angular misalignment only and is best for floating shaft applications
Conventional FA Kind
Double engagement (‘F’ flex-flex) for parallel and angular misalignment
Business regular flange bolt patterns