Boston Gear XFCBB38 Bost-Bronz Coupling Insert.

Boston Gear Bost-Bronz spider insert for Boston Gear FC38 and SSFC38.

• Boston Gear’s FC 3-jaw couplings are available with a choice of three coupling insert materials: 1) Oil impregnated BOST-BRONZ® – high torque loads, lower speeds, 2) Oil-resistant synthetic rubber –quiet operation, and 3) Polyurethane – moderate to heavy shock loads.
• Recommended for high torque loads, particularly at slower speeds.

MFR # XFCBB38 BRONZE INSERTS 08074.