Boston Gear 11706-W Jaw Couplings

Boston Gear 11706-W jaw coupling is a three‑jaw, insert‑type shaft coupling from the FC-series, sized for a 5/8‑inch bore. It pairs two hubs with a replaceable insert (the 11706‑W) designed to transmit torque while accommodating shaft misalignment and dampening vibrations in light‑ to medium‑duty drives, with inserts in the FC series commonly configured to provide a resilient, replaceable element. In the FC12 family, the 5/8‑inch bore defines a compact envelope suitable for general industrial equipment. The design allows replacing just the insert without discarding the entire coupling, reducing maintenance downtime. This coupling excels in motor‑to‑shaft connections where smooth torque transfer and serviceability matter, such as conveyors, packaging lines, and other general machinery.