Further Specialty Coupling Forms
Stainless Steel
Nylon Sleeves
High Velocity RAHS Form
Brake Drum FBD and FBW Forms
Insulated FI Style
Vertical Floating Shaft FVFS Style
F Fashion Cutout Shifter FCS Type
Mill Motor FAMM Sort
Very first hub created with longer universal hub on a single end to accommodate straight or tapered shafts
Second hub bored to consumer specs
Standard design accommodates AISE Mill Motor frame sizes
Sleeves and second hub are normal
Single engagement FAFR Style
Single engagement (‘FFR’ Flex-Rigid) accommodates angular misalignment only and is ideal for floating shaft 
applications
Regular FA Style
Double engagement (‘F’ flex-flex) for parallel and angular misalignment
Sector typical flange bolt patterns