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 The Lovejoy Torsional Family of couplings solve torsional vibration problems typical of those found in diesel engine applications. The Torsional coupling dampens torsional vibrations and tunes the system to have critical speeds outside the operating range. Lovejoy application engineers
can analyze the application with their computer program and determine the exact coupling needed for most any application.
Click below for the appropriate Torsional Coupling Catalog.
 Torsional Coupling Catalog
L-LOC Clamp Feature Sheet
The LF family is a rubber-in-compression coupling designed for a wide variety of applications such as generators, pumps, compressors, front power take-off, etc. The largest size, the LF600, can carry up to 70,800 in lb of torque. A range of stiffnesses are available to provide tuning capability for most any application. The inertia of the driver and the driven will
determine the required stiffness. The LF is one of the most versatile couplings available in that it can be adapted to many configurations such as shaft-to-shaft, engine flywheel mounts, or floating shaft. It not only provides torsional protection, but also absorbs shock loads and can tolerate misalignment.
For direct-mounted, diesel-driven hydraulic pumps, the LF coupling in Hytrel® and a LK coupling are available. These are very stiff couplings designed to shift critical speeds well above the operating range. When the inertia of the driven (hydraulic pump or pumps) is small compared to that of the driver (the diesel engine), a stiff coupling such as the LF Hytrel or LK is required.
Hydraulic pump drives are a fast growing segment of the market, particularly in smaller diesel engine drives. Applications include crawler tractors, manlifts, compactors, skid steer loaders, excavators, and lift trucks. Both the LF Hytrel and the LK have many thousands of hours of successful service in a wide variety of applications around the world.
The Torsional couplings are designed primarily to fit standard installations such as those specified by SAE. Lovejoy has design and application engineers with many years of experience to custom design a Torsional coupling to fit special applications.We can solve torsional vibration problems. Also, if necessary, our engineers can analyze coupling failures.
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