Lovejoy 68514441452 Flexible Coupling Hub L070 Sintered Iron

Product Description

The LOVEJOY 68514441452 is a flexible coupling hub in the L070 series, designed for use in jaw-type flexible coupling assemblies. Machined from sintered iron, this hub accepts a minimum bore diameter of 0.25 inches and a maximum bore diameter of 0.394 inches, with an outside diameter of 1.36 inches and an overall length of 2 inches. It transmits torque up to 43.20 inch-pounds (4.88 newton-meters) between connected shafts while accommodating minor misalignment. Mechanical technicians and industrial maintenance professionals install this hub as part of a complete coupling assembly in drive systems across HVAC, pumping, and light industrial equipment.

This hub is suited for residential and commercial mechanical drive applications where a compact, low-cost flexible coupling is needed. The L070 series is a widely used jaw coupling platform found in small motor-to-pump drives, fan assemblies, and gearbox connections. Note that a complete coupling requires two hubs and one spider insert, which must be ordered separately. This hub ships as a single unit.

Key Features

• Sintered iron construction provides durability in light-to-medium duty drive applications
• Bore range of 0.25 inches to 0.394 inches accommodates common small shaft sizes
• Outside diameter of 1.36 inches fits compact drive envelopes
• Rated torque of 43.20 inch-pounds (4.88 N/m) suitable for fractional horsepower drive trains
• L070 series coupling size code for straightforward cross-referencing and replacement sourcing
• Single hub sold per package — order two hubs and one spider for a complete coupling assembly

Compatibility

Designed as an OEM-style replacement hub for L070 series jaw-type flexible coupling assemblies. Two hubs and one spider insert are required to complete a functional coupling. Compatible spider and mating hub must share the L070 series designation.

Installation Notes

Installation is typically performed by a licensed millwright or mechanical technician. Before servicing any coupling, de-energize and lock out the drive motor per NFPA 70E and site-specific LOTO procedures. Hubs should be pressed or keyed onto shafts according to the shaft and bore tolerances of the application — do not force a hub onto an oversized shaft. Inspect the spider insert for wear at each service interval and replace if elastomeric elements show cracking, compression set, or missing segments.