Lovejoy 68514437786 Jaw Coupling Spider Urethane L050

Product Description

The LOVEJOY 68514437786 is a flexible jaw coupling spider insert made from urethane, designed for use in L050-series jaw-type flexible couplings. The spider element fits between two mating hubs to transmit torque while absorbing shock and dampening vibration. It measures 1.08 inches in outside diameter and 1.72 inches overall length, with a rated torque of 39.40 inch-pounds (4.50 N/m). Urethane construction provides good chemical resistance and flexibility across a range of operating conditions. This is a replacement spider element only — two hubs must be ordered separately to complete the coupling assembly. Installation is common in mechanical drive systems across HVAC, pump, and light industrial applications.

The L050-series spider is suited for residential and light commercial mechanical drive applications where a flexible jaw coupling is used to connect two shafts in close alignment. Typical uses include motor-to-pump connections, fan drive assemblies, and similar low-to-medium torque power transmission setups. The urethane element is the wear component of the coupling and is commonly replaced during routine maintenance without disturbing the hubs. A licensed mechanic or millwright typically handles this work, though HVAC and plumbing technicians frequently encounter jaw coupling spiders in equipment they service.

Key Features

• Urethane construction absorbs shock and dampens vibration between drive and driven shafts
• Rated torque of 39.40 inch-pounds for light-to-medium duty drive applications
• L050 series size code ensures correct fit with matching L050 hubs
• 1.08 inches outside diameter and 1.72 inches overall length for compact installations
• Spider-only component — two hubs required for a complete coupling assembly

Compatibility

Designed for use in L050-series jaw-type flexible couplings. Two L050-compatible hubs must be ordered separately to complete the coupling assembly. Refer to the L050 coupling series specifications to confirm hub compatibility before ordering.

Installation Notes

De-energize and lock out the drive motor before servicing the coupling assembly. The spider element is installed by seating it between the jaws of two opposing hubs — no special tools are required for the spider itself, but shaft alignment should be verified before final assembly. Misalignment beyond the coupling design tolerance will accelerate spider wear. Follow applicable OSHA lockout/tagout procedures and equipment manufacturer alignment guidelines during installation.