SpecificationsMax Od Fra In2.000000Max Torque Lb In470Overall Assy Length Fra In4.812500Hub Diameter Fra In1.750000DescriptionAt 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.Family NameFC CouplingsBore Size Str In1"Thru Bore Length Fra In1.437500Max Hp Poly Insert11.1HP @1750 RPM MAXProduct DescriptionShaft Coupling, 3 Jaw FC Series-Coupling HalfCoupling SizeFC20Family Id30,018Unit Of MeasureEnglish