Lovejoy 68514410406 Rubber Insert

The Lovejoy 68514410406 is a professional-grade L070 jaw coupling insert designed for high-performance power transmission in HVACR and industrial pump applications. This SOX (NBR) elastomeric spider features a solid center design, providing essential vibration dampening and shock absorption between the coupling hubs. As a direct replacement for the L-070 series, this Buna-N rubber insert offers excellent resistance to oil, grease, and many chemicals, ensuring long-term structural integrity in demanding mechanical environments. It is specifically engineered to handle misalignment and reduce bearing wear by isolating torque spikes. Whether you are servicing a fractional horsepower motor or a standard centrifugal pump, this NBR elastomeric donor ensures a reliable, fail-safe connection that maintains torque transmission even if the elastomeric material fails during extreme duty cycles.

Key Benefits for Contractors

• Standard NBR Construction: High oil resistance and standard temperature range performance for most HVACR drive systems.
• Vibration Isolation: Effectively dampens rotational shock and reduces noise across the drive shaft.
• Fail-Safe Design: The jaw coupling geometry ensures that even if the spider fails, the hubs will lock to prevent a total loss of power transmission.
• Chemical Resistance: Resilience against petroleum-based lubricants and common hydraulic fluids.
• Solid Center Architecture: Provides maximum surface area contact for consistent torque distribution and durability.

Common Installation Questions

What is the temperature range for this NBR spider?
The standard Nitrile (Buna-N) material is optimized for operating environments ranging from -40°F to 212°F (-40°C to 100°C).

Can this insert be used in applications with high angular misalignment?
This L-jaw coupling insert is designed to accommodate up to 1 degree of angular misalignment and up to 0.015 inches of parallel misalignment.

Is the 68514410406 compatible with AL070 hubs?
Yes, this elastomeric spider is fully compatible with both L-series and AL-series (aluminum) size 070 hubs.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.