LJ22535M
L225 jaw coupling hub, 35 mm bore
- The AR LJ22535M is a Lovejoy L225 jaw coupling hub with a
35 mm bore and 10 x 3.3 mm keyway, engineered by Annovi Reverberi to deliver
accurate, vibration-free torque transmission and long-term mechanical reliability in demanding industrial
environments. - Designed for strength and precision, this steel coupling hub provides secure shaft alignment and smooth power
transfer for pumps, motors, and industrial drive systems operating under high torque conditions. - As part of the L225 series, it connects with a matching hub and elastomer spider insert
(sold separately) to form a flexible, vibration-damping assembly that transmits torque efficiently while
protecting connected components from shock and misalignment.
LJ22535M Design & Construction
Precision-machined steel hub
- 35 mm precision-machined bore provides a tight, accurate fit on standard metric shafts for secure,
concentric torque transfer. - 10 x 3.3 mm keyway delivers positive mechanical engagement that prevents slippage and maintains
torque integrity under load. - Heavy-duty steel construction offers exceptional strength, dimensional stability, and fatigue
resistance for continuous-duty operation. - Three-jaw Lovejoy L225 geometry engages the elastomer spider evenly across all faces, eliminating
metal-to-metal contact and reducing wear. - Corrosion-resistant surface finish protects against moisture, cleaning chemicals, and environmental wear in both
indoor and outdoor installations.
Performance & Vibration Control
Flexible coupling dynamics
- When paired with the correct elastomer spider, the LJ22535M forms a flexible, vibration-damping
coupling that cushions torque spikes and shock loads. - The elastomer insert compensates for minor angular, parallel, and axial misalignments, helping
protect bearings, seals, and shafts from stress and extending equipment life. - Flexible spider material dampens torsional oscillations and prevents resonance in rotating
assemblies, lowering system noise and improving performance. - Balanced hub geometry minimizes vibration, delivering quiet and efficient operation over a wide
range of speeds and torque loads. - L225 series design is known for high torque capacity, making this hub suitable for heavy
industrial as well as light commercial applications.
Installation & Maintenance
Modular, lubrication-free system
- Simple installation: slide the hub onto the keyed 35 mm shaft, align the key, secure with the set
screw, and place the elastomer spider between the two hubs before tightening the assembly. - Lubrication-free operation keeps the drive clean and minimizes contamination risk in hydraulic and
fluid-handling systems. - Modular coupling design allows quick replacement of the elastomer insert without removing the hubs
or disturbing shaft alignment, reducing downtime and simplifying maintenance. - Fail-safe Lovejoy configuration ensures that even if the elastomer degrades, the metal jaws remain partially
engaged to maintain limited torque transmission until servicing can be carried out. - Routine maintenance is limited to periodic inspection of the spider for wear, cracking, or hardening, with
replacement restoring full vibration-damping performance.
LJ22535M Applications
Industrial and commercial power transmission
- Ideal for pressure washer pumps and industrial cleaning systems requiring smooth, stable torque
delivery. - Commonly used in compressors, hydraulic power units, and manufacturing machinery that operate under
continuous-duty or frequent start–stop cycles. - Suitable for industrial drive systems where accurate alignment, low vibration, and high torque
capacity are required. - Performs reliably in environments with fluctuating loads, maintaining alignment and preventing
fatigue in connected components. - Compact, balanced design allows installation in tight equipment bays without compromising torque
capacity or stability.
Key Features & Benefits
LJ22535M Spec summary and selection points
- Model: AR LJ22535M – Lovejoy L225 jaw coupling hub.
- Bore Size: 35 mm precision-machined bore.
- Keyway: 10 x 3.3 mm keyway for positive shaft engagement.
- Series: L225 heavy-duty jaw coupling platform.
- Material: High-strength steel with corrosion-resistant finish.
- Coupling Type: Three-jaw hub used with L225 elastomer spider (sold separately).
- Benefits: High torque capacity, vibration damping, misalignment compensation, quiet operation,
and extended life for pumps, motors, bearings, and seals. - Keywords: LJ22535M, Lovejoy L225 hub, 35 mm bore coupling, jaw coupling, 10 x 3.3 keyway,
elastomer spider coupling, industrial pump drive, vibration-damping shaft coupling.





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