Boston Gear 08076 3-jaw Coupling Insert Bronze FC45

Product Description

The BOSTON GEAR 08076 is a flexible 3-jaw coupling insert designed for use in mechanical power transmission systems. Manufactured from bronze, this insert fits within the FC series jaw coupling family and carries a torque rating of 11,000 inch-pounds. It features a minimum bore diameter of 1.75 inches and an outside diameter of 4.5 inches, making it suitable for mid-range shaft coupling applications. The insert absorbs shock and dampens vibration between coupled shafts. Installation requires two compatible jaw hubs ordered separately; this listing covers the insert only. Millwrights, maintenance mechanics, and industrial service technicians are the primary installers of this component.

The 08076 insert is used in industrial drive systems where flexible coupling is required to accommodate minor shaft misalignment or to reduce torsional shock loads. It fits into the FC series jaw coupling assembly, specifically the FC45 coupling size. Applications span conveyor drives, pump drives, compressor drives, and general industrial machinery where bronze insert material is specified for its durability and moderate elasticity. A complete coupling assembly requires two FC-series hubs in addition to this insert.

Key Features

• Bronze construction provides durability and moderate flexibility for shock absorption
• 11,000 inch-pounds torque capacity for mid-range power transmission demands
• 1.75 inch minimum bore diameter accommodates common shaft sizes in industrial drives
• 4.5 inch outside diameter fits FC45 coupling size designation
• 3-jaw style insert design for straightforward hub engagement and replacement
• Complete coupling requires two FC-series hubs plus this single insert

Compatibility

Designed for use within the Boston Gear FC series jaw coupling system, coupling size code FC45. A complete assembly requires two FC-series jaw hubs and one insert. Verify hub bore and keyway dimensions against shaft specifications before ordering.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. Disconnect and lock out all power to the drive system before disassembling or replacing coupling components. Ensure both mating hubs are properly aligned to shaft centerlines before seating the insert to avoid accelerated wear. Follow applicable machinery safety standards and the equipment manufacturer's alignment tolerances during reassembly.