LJ19030M Lovejoy L190 Jaw Coupling Hub 30 mm Bore

LJ19030M Jaw Coupling Hub Overview

The AR LJ19030M is a Lovejoy L190 jaw coupling hub with a 30 mm bore and 8 x 3.3 mm keyway, engineered by Annovi Reverberi to deliver precise torque transmission, stable alignment, and long-lasting vibration control in heavy-duty pump and motor assemblies. Designed for performance and durability, this high-strength steel hub provides the secure connection and mechanical integrity needed for continuous industrial operation.

Key Features

• 30 mm precision-machined bore for accurate shaft fit
• 8 x 3.3 mm keyway for positive, slip-free drive engagement
• High-strength steel construction for long-term durability
• Engineered for smooth, quiet, and consistent torque transfer
• Corrosion-resistant finish for indoor and outdoor environments
• Compatible with Lovejoy L190 elastomer spiders (sold separately)

Performance Benefits

• Stable alignment for reduced mechanical wear
• Even load distribution across the elastomer insert
• Low vibration and excellent balance at varying speeds
• Reliable performance under high-torque, heavy-duty conditions
• Fail-safe jaw engagement allows limited operation if insert wears
• Protects pumps, motors, bearings, and seals from shock loads

LJ19030M Applications

• Industrial pumps and large pump systems
• Compressors
• Hydraulic power units
• Industrial cleaning systems
• Commercial and manufacturing machinery

Construction & Design

• Precision machining ensures proper jaw alignment and concentricity
• Balanced geometry minimizes noise and vibration
• Robust steel hub resists fatigue, deformation, and long-term wear
• Designed to maintain torque integrity under thermal expansion and load variation
• Corrosion-resistant finish protects against moisture and chemicals

Coupling Operation

• Works with elastomer spider to absorb vibration and shock
• Compensates for angular, parallel, and axial misalignment
• Promotes smooth torque transmission across speed ranges
• Supports high-speed and high-load rotating systems

Installation Advantages

• Simple keyed-shaft installation with set screw retention
• No lubrication required—clean, maintenance-free operation
• Elastomer insert can be replaced without removing hubs
• Minimal downtime for inspection and servicing

LJ19030M Lovejoy L190 Jaw Coupling Hub 30 mm Bore

With its precision-machined bore, robust steel construction, and balanced design, the AR LJ19030M delivers reliable, efficient, and quiet power transmission for demanding industrial applications. As part of the trusted Lovejoy L190 series, it provides stable torque delivery, vibration reduction, and long service life—making it a preferred solution for pumps, motors, and heavy-duty rotating machinery.