LJ110138 | Lovejoy Jaw Hub 1-3/8″ Bore, L110

LJ110138 Lovejoy L110 Jaw Coupling Hub

The AR LJ110138 is a Lovejoy L110-series jaw coupling hub featuring a 1-3/8-inch bore and a 5/16 x 5/32-inch keyway.
Engineered by Annovi Reverberi, it provides strong, vibration-free, and precisely aligned torque transmission in
industrial and commercial drive systems.

Key Features LJ110138 | Lovejoy Jaw Hub 1-3/8 in Bore, L110 Series

• 1-3/8-inch precision-machined bore for accurate shaft fit
• 5/16 x 5/32-inch keyway for secure, slip-free engagement
• High-strength steel construction for durability and fatigue resistance
• Compatible with Lovejoy L110 elastomer spiders (sold separately)
• Three-jaw interlocking design for smooth torque transfer
• Corrosion-resistant finish for long service life

Performance Advantages

• Absorbs vibration and cushions mechanical shock
• Compensates for angular, parallel, and axial misalignment
• Reduces stress on bearings, seals, and shafts
• Provides quieter operation and reduced torsional oscillation
• Minimal backlash due to precision-machined jaws
• Fail-safe jaw engagement permits temporary operation if spider wears

Construction & Quality

• Steel body provides rigidity and dimensional stability under load
• Corrosion-resistant coating protects against moisture and chemicals
• Precision machining ensures perfect spider engagement
• Balanced geometry for smooth operation at high speeds
• Manufactured to exact tolerances for consistent compatibility

Applications

• High-pressure pumps
• Compressors
• Hydraulic power units
• Manufacturing and industrial machinery
• Pump skids and motor assemblies
• Commercial and industrial power transmission systems

Installation

• Slides onto shaft and aligns with keyway for secure mounting
• Set screw provides additional locking stability
• Elastomer spider installs easily between two hubs
• No lubrication required for operation

Maintenance

• Spider replacement can be completed without removing hubs
• Inspect elastomer insert periodically for wear or cracking
• Low-maintenance design minimizes downtime and service costs

LJ110138 | Lovejoy Jaw Hub 1-3/8 in Bore, L110 Series

Operational Benefits

• Reduces mechanical noise and vibration
• Improves overall system efficiency and equipment life
• Performs reliably in continuous-duty and variable-load conditions
• Supports larger pumps and motors due to L110 torque capacity