The H / HR Series Jaw Coupling is a heavy-duty flexible coupling designed for high torque transmission and demanding industrial applications. It is specifically engineered to handle higher power requirements, larger shaft sizes, and increased operational loads compared to standard jaw couplings.

The H / HR Series combines a rugged metallic hub design with a high-capacity elastomeric element, delivering superior performance in applications involving shock loads, vibration, and moderate misalignment. It is ideal for industries where strength, durability, and reliability are critical.

Components:
Heavy-Duty Metallic Hubs (H / HR Type)
Manufactured from high-strength S.G. Iron. Designed for large bore sizes and high torque transmission.

Elastomeric Spider (High-Capacity Element)
Available in:
• NBR (Buna-N): High damping for general applications
• Polyurethane: Enhanced torque and wear resistance
• Hytrel: High temperature and high torque capability

Working Principle:
Torque is transmitted through the compression of the elastomeric spider between the jaws of the hubs. The heavy-duty hub design ensures reliable torque transfer, while the elastomer absorbs shocks and accommodates misalignment for smooth and efficient operation.

Advantages
• Suitable for heavy-duty and high-load applications
• Higher torque capacity compared to standard jaw couplings
• Reliable performance in demanding environments
• Low maintenance with long operational life
• Wide applicability across industries

Typical Applications
H / HR Series Jaw Couplings are widely used in:
• Heavy-duty motor and gearbox drives
• Cement and steel industry equipment
• Crushers and mills
• Conveyors and bulk material handling systems
• Pumps and compressors in high-load applications

These couplings are ideal for medium to heavy-duty applications requiring high torque transmission and durability.