Lovejoy 68514416259 U Joint

The Lovejoy 68514416259 is a high-performance D3B Universal Joint designed for reliable power transmission in demanding HVACR and industrial drive systems. Engineered with a precision pin and block design, this 5/16 inch bore universal joint handles rotational motion transfer between misaligned shafts with minimal backlash. Constructed from high-grade alloy steel, the Lovejoy D Type U-joint is a standard-setter for technicians requiring a rugged, no-keyway solution for high-torque applications. It supports a static breaking torque of 540 in-lb and operates efficiently at speeds up to 1,750 RPM. The specialized yoke shape maximizes strength while maintaining a maximum operating angle of 25 degrees, making it ideal for tight mechanical footprints where traditional couplings fail. For long-term durability in ventilation and motorized drive assemblies, this unit features integrated boot retaining grooves to facilitate easy lubrication and protection against debris.

• High Torque Capacity: Rated for a static breaking torque of 540 in-lb, ensuring stability under heavy mechanical loads.
• Precision Alignment: Accommodates up to 25 degrees of angular misalignment without sacrificing rotational speed.
• Industrial Durability: Solid steel construction with a 2-1/4 inch overall length provides the rigidity needed for HVACR drive connections.
• Standardized Fit: 5/16" diameter x 0.68" deep bore offers a secure fit for standard 0.3125-inch shafts.
• Maintenance Ready: Includes standard boot retaining grooves to simplify the installation of protective covers and lubrication systems.

What is the maximum RPM for the Lovejoy 68514416259?
This D3B U-joint is rated for a maximum speed of 1,750 RPM, making it suitable for motor-driven industrial and HVAC applications.

Does this part include a keyway or setscrews?
No, this specific model (68514416259) is a bored-style unit provided without a keyway or setscrews for a clean press-fit or custom machining to your specific requirements.

Is lubrication required for operation?
Yes, for optimal service life and wear resistance, regular lubrication is recommended. Utilizing the boot retaining grooves with a compatible boot will help retain grease and prevent contamination.

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.