Lovejoy 68514456622 Flexible Screw Hub 3/4 in Od EC050

Product Description

The LOVEJOY 68514456622 is a set screw style flexible screw hub designed for use in shaft coupling assemblies. Machined from anodized aluminum, this hub measures 0.75 inches in outside diameter and 0.75 inches in overall length, with a minimum bore diameter of 3/16 inch. It is rated for 5 inch-pounds of torque and belongs to the EC050 series, size code ES075. Lightweight at 0.03 pounds, this component suits space-constrained mechanical drive applications where a reliable, low-backlash connection between shaft and coupling element is required. Installation is straightforward and the anodized finish provides basic corrosion resistance for the aluminum body.

This screw hub is suited for use in small mechanical drive systems, motion control assemblies, and equipment requiring compact flexible couplings. Typical applications include light-duty power transmission setups in HVAC equipment, pumps, fans, and general industrial machinery where shaft alignment compensation and torque transfer at low load ratings are needed. The set screw retention style allows secure hub-to-shaft engagement without the need for keyways.

Key Features

• Set screw retention style for tool-accessible shaft engagement
• Anodized aluminum construction for lightweight, corrosion-resistant performance
• Compact 0.75 inch OD and 0.75 inch overall length for tight installation envelopes
• 3/16 inch minimum bore diameter suits small-diameter shafts
• Rated to 5 inch-pounds torque capacity
• EC050 series, size code ES075 for straightforward replacement sourcing

Compatibility

Designed as an OEM-style replacement screw hub for flexible shaft coupling assemblies in the EC050 series using the ES075 size code designation.

Installation Notes

Installation is typically performed by a millwright or mechanical technician. Disengage and lock out all power to the drive system before servicing any coupling component. Ensure the shaft is clean and free of burrs before seating the hub, and verify bore and shaft diameter compatibility prior to installation. Tighten set screws to equipment manufacturer specifications using the appropriate hex key.