Lovejoy 68514417056 Dd-type Double Universal Joint

Product Description

The LOVEJOY 68514417056 is a DD-type double universal joint designed to transmit rotational torque through angular misalignment in mechanical drive systems. It delivers a torque capacity of 15,600 in/lb and accommodates a bore depth of 1.5 inches. The boot measures 1 inch inside diameter and 2 inches outside diameter. The overall assembly length (OAL) is 10.875 inches. This type of double universal joint is typically installed by millwrights, maintenance mechanics, or industrial tradespeople working on drive shafts, power transmission assemblies, and equipment requiring flexible coupling across angular offsets.

The 68514417056 suits applications where a single universal joint would produce velocity variation at the output shaft. A DD-type double joint cancels that variation, making it well suited for industrial machinery, agricultural equipment, and mechanical drive lines that require constant-velocity output across moderate operating angles. It is applicable in both new installations and replacement scenarios where the existing joint has worn beyond serviceable limits.

Key Features

• DD-type double joint design cancels velocity variation caused by angular misalignment
• 15,600 in/lb torque capacity for heavy-duty mechanical drive applications
• 1.5 inch bore depth accommodates standard shaft sizing
• Boot inside diameter of 1 inch and outside diameter of 2 inches
• 10.875 inch overall assembly length for direct dimensional replacement planning
• Single-unit packaging with a minimum order quantity of 1

Compatibility

Designed as an OEM-style replacement for DD-type double universal joints in industrial and mechanical power transmission drive systems requiring 15,600 in/lb torque capacity and a 1.5 inch bore depth.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. Isolate and lock out all energy sources, including electrical and pneumatic, before removing the existing joint or installing the replacement. Verify shaft diameter, bore depth, and OAL against the application before final assembly. Consult applicable ANSI or OSHA machine guarding standards when reinstalling protective covers over the drive shaft assembly.