Lovejoy 68514416346 D-type Single Universal Joint

Product Description

The LOVEJOY 68514416346 is a D-type single universal joint designed to transmit rotational motion between shafts that are misaligned or require angular flexibility. It is rated for 1,176 inch-pounds of torque and features a 7/8-inch bore depth with a 7/16-inch inside diameter boot and a 7/8-inch outside diameter boot. The overall assembly length is 3 inches. This type of joint is commonly installed by millwrights, HVAC technicians, and mechanical contractors in drive train assemblies, equipment linkages, and mechanical control systems where compact, reliable torque transmission is required.

This universal joint is suited for light-to-medium duty mechanical drive applications in both commercial and industrial settings. It fits installations where a single-joint configuration is sufficient to accommodate shaft angle variation without the use of a double-joint or constant-velocity assembly. Typical applications include fan drive linkages, valve actuators, and equipment control shafts in HVAC and general mechanical systems.

Key Features

• 1,176 inch-pound torque capacity for light-to-medium duty drive applications
• 7/8-inch bore depth accommodates standard shaft sizing
• 7/16-inch inside diameter by 7/8-inch outside diameter boot dimensions
• 3-inch overall assembly length for compact installation envelopes
• D-type single joint design for straightforward angular misalignment correction

Compatibility

Designed as an OEM-style replacement or direct-fit single universal joint for mechanical drive and linkage applications requiring a D-type joint with 7/8-inch bore depth and 1,176 inch-pound torque capacity.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. De-energize and lock out all power to the connected equipment before removing or installing the joint. Ensure shaft alignment is within the angular tolerance of a single universal joint before installation, as excessive angle will reduce service life. Inspect mating shaft surfaces and fasteners for wear or damage before assembly.