Rigid Couplings

Rigid couplings are mechanical devices used to connect two shafts in rotating machinery in a fixed, or rigid, manner. Unlike flexible couplings, which allow for some degree of misalignment or vibration damping, rigid couplings are designed to precisely align the two shafts and transmit torque without any flexibility.

These couplings are typically made of metal, such as steel or aluminum, and come in various designs to suit different applications. Common types of rigid couplings include:

1. Sleeve Couplings: Also known as muff couplings, sleeve couplings consist of a solid cylindrical sleeve that fits over the ends of the two shafts to be connected. The sleeve is typically secured in place using setscrews or clamping bolts to ensure a rigid connection.

2. Clamp or Split Couplings: These couplings feature two separate halves that are bolted or clamped together around the shafts. They are often used in applications where it’s difficult or impractical to slide a solid coupling onto the shafts.

3. Flange Couplings: Flange couplings consist of two flanged hubs that are bolted together, sandwiching the ends of the shafts between them. Flange couplings are commonly used in applications where alignment precision is crucial, such as in high-speed machinery.

4. Compression Couplings: Compression couplings use a threaded mechanism to apply pressure to the shaft ends, ensuring a tight and rigid connection. They are often used in applications where frequent disassembly and reassembly are required.

Rigid couplings are commonly employed in machinery where precise shaft alignment is essential, such as in pumps, motors, turbines, and precision machinery. They offer advantages such as high torque transmission, minimal backlash, and reliable performance. However, they may not be suitable for applications with significant misalignment or shock loads, as they lack the flexibility of flexible couplings to absorb vibrations and compensate for misalignment

Rigid Couplings Type RM12, RM16, RM25, RM30, RM40, RM45, RM50, RM12 Rigid Couplings, RM16 Rigid Couplings, RM25 Rigid Couplings, RM30 Rigid Couplings, RM40 Rigid Couplings, RM45 Rigid Couplings, RM50 Rigid Couplings.