Lovejoy 68514417087 Dd-type Double Universal Joint

Product Description

The LOVEJOY 68514417087 is a DD-type double universal joint designed to transmit rotational motion between shafts that are misaligned or require articulation across two planes. It delivers up to 540 in/lb of torque capacity, making it suitable for demanding mechanical drive applications. The part features an 11/16-inch bore depth, a 5/16-inch inside diameter boot, and a 5/8-inch outside diameter boot. At 4-1/2 inches overall length, it fits into compact drive train assemblies. Licensed mechanical technicians and industrial maintenance professionals are the typical installers for this type of component.

This double universal joint is used in mechanical power transmission assemblies where a single universal joint cannot accommodate the required range of angular motion. Common applications include HVAC drive shafts, industrial equipment linkages, and mechanical actuation systems where two consecutive universal joints are needed to maintain near-constant velocity output. The compact overall length of 4-1/2 inches suits tight installation envelopes in both stationary machinery and mobile equipment drive systems.

Key Features

• DD-type double universal joint for two-plane angular misalignment compensation
• 540 in/lb torque capacity for demanding mechanical drive loads
• 11/16-inch bore depth for shaft engagement
• 5/16-inch inside diameter and 5/8-inch outside diameter boot dimensions
• 4-1/2-inch overall length fits compact drive train spaces
• Lightweight at 0.37 pounds for easy handling and installation

Compatibility

Designed as an OEM-style replacement or upgrade universal joint for mechanical drive assemblies requiring a DD-type double universal joint with 540 in/lb torque capacity and matching bore and boot dimensions.

Installation Notes

Installation should be performed by a qualified mechanical technician. Disconnect and lock out all power sources before removing or installing any drive shaft components. Ensure shaft surfaces are clean and free of burrs before seating the joint to the specified bore depth. Do not exceed the rated torque capacity during operation, as overloading a universal joint can cause premature failure or component damage.