FC Series Coupling Half

Hover on image above to zoom; Click to view larger image.

Shaft Coupling, 3 Jaw FC Series-Coupling Half

Model: FC20 1

At Boston Gear, we manufacture our FC couplings from the highest quality alloy steel - not from powdered metal as many other industrial manufacturers do. Consisting of two metal jaws - or hubs - and an insert, this style of coupling is suited for high-torque and shock loads, does not require lubrication, and is not affected by oil, grease, dirt, or moisture. The allowable torque for the FC series of couplings is determined by the insert material. These inserts are the wearing member of the coupling and can be easily replaced with minimal effort.

Download CAD



Max Outside Diameter: 2.0000 in
Max Torque: 1,000 in lb
Overall Assy Length: 4.8125 in
Hub Diameter: 1.7500 in
Bore Diameter: 1 in
Coupling Size: FC20
Item Weight Imperial: 1.100 lb
Thru Bore Length: 1.4375 in
Max HP (Bronze Insert): 18.2 HP @1150 RPM Max
Max HP (Rubber Insert): 13.7 HP @3450 RPM Max
Max HP (Poly Insert): 20.7 HP @3450 RPM Max
California Provision: WARNING: This product contains chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.


We are now a part of Regal Rexnord.