Lovejoy 68514412006 Flexible Coupling Spider Urethane L150

Product Description

The LOVEJOY 68514412006 is a urethane flexible coupling spider in the L150 series, designed to transmit torque between two hubs in a jaw-type flexible coupling assembly. Rated at 1,860 inch-pounds of torque, this spider element absorbs shock, vibration, and misalignment loads between coupled shafts. It measures 3.75 inches in outside diameter and 4.5 inches in overall length, with a maximum bore diameter of 1.875 inches. One spider pairs with two separately ordered hubs to form a complete coupling assembly. Installation requires purchasing two hubs and one spider. Mechanical contractors, millwrights, and industrial HVAC equipment technicians are the primary installers.

The L150 series spider is suited for use in pump, fan, compressor, and drive shaft coupling applications where flexible power transmission and vibration damping are required. It is commonly found in commercial HVAC systems, light industrial machinery, and mechanical equipment rooms where jaw couplings are the specified connection method. The urethane construction provides chemical resistance and durability in typical indoor mechanical environments. Note that this part number covers the spider element only — hubs must be ordered separately to complete the coupling.

Key Features

• Urethane construction provides shock absorption and vibration damping between drive and driven shafts
• Rated for 1,860 inch-pounds of torque for reliable power transmission in demanding applications
• Maximum bore diameter of 1.875 inches accommodates common shaft sizes in the L150 coupling family
• 3.75 inch outside diameter and 4.5 inch overall length match L150 series hub geometry
• Spider-only component — order two hubs and one spider for a complete coupling assembly

Compatibility

Designed for use with L150 series jaw coupling hubs. Two hubs and one spider are required to complete the coupling assembly. Consult hub manufacturer specifications to confirm bore size and series compatibility before ordering.

Installation Notes

Coupling spider replacement is typically performed by a millwright or mechanical technician. De-energize and lock out all connected drive equipment before beginning work. Inspect hub jaw faces for wear or damage before installing a new spider element. Do not exceed the rated torque value during operation, and ensure hub bores and keyways are properly sized and secured before returning equipment to service.