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The LOVEJOY 68514456634 is a flexible screw hub designed for use in mechanical coupling assemblies where precise torque transmission and shaft alignment are required. Part of the EC050 series, this set screw-style hub features an anodized aluminum body measuring 1 inch in outside diameter and 1 inch in overall length. It accommodates a minimum bore diameter of 0.25 inches and is rated for up to 11 inch-pounds of torque. The lightweight anodized aluminum construction resists corrosion while keeping rotating mass low. Mechanical and HVAC technicians install this hub as part of a flexible coupling system to connect shafts in pumps, fans, and other rotating equipment.
This hub is suited for light-duty power transmission applications in residential and commercial mechanical systems. Typical use cases include fan assemblies, small pump drives, and motor-to-shaft connections where some degree of misalignment compensation is needed. The set screw retention method provides a secure, adjustable fit on the shaft without requiring permanent modification. It is sold individually and is appropriate for bench assembly or field replacement of worn or damaged coupling hubs.
Designed as an OEM-style replacement screw hub for use in EC050 series flexible coupling assemblies requiring a 1 inch OD, 0.25 inch minimum bore hub with set screw retention.
Installation should be performed by a qualified mechanical or HVAC technician. Disconnect and lock out all power to the drive system before removing or installing coupling components. Ensure the mating shaft is clean and within the specified bore tolerance before tightening the set screw. Do not exceed the rated torque of the coupling assembly, and verify shaft alignment after installation to prevent premature wear.
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