A magnetic coupling is a non-contact coupling that transmits torque between two shafts using magnetic fields instead of physical connections. It consists of two magnetized components: an inner rotor attached to the driving shaft and an outer rotor connected to the driven shaft, separated by a containment barrier. The magnetic forces transfer torque through the barrier, allowing for sealed and leak-free operation. Magnetic couplings are commonly used in applications requiring hermetic sealing, such as pumps in chemical, pharmaceutical, and food processing industries. They are valued for their reliability, reduced maintenance, and ability to eliminate the risk of fluid leakage.

A chain coupling is a type of mechanical coupling that uses a chain and sprockets to connect two shafts and transmit torque. It consists of two sprockets mounted on the shaft ends and a chain that wraps around them to create the connection. Chain couplings are known for their ability to accommodate slight misalignments and their high torque capacity, making them suitable for heavy-duty applications. They are commonly used in industries like material handling, conveyors, and industrial machinery, valued for their simplicity, durability, and cost-effectiveness.

A universal joint (U-joint) is a mechanical connection that allows for the transmission of torque and rotational motion between two shafts that are not aligned. It consists of a pair of hinges connected by a cross-shaped pivot, enabling the shafts to flexibly transmit power at an angle. Universal joints are widely used in applications such as automotive drivetrains, industrial machinery, and agricultural equipment. They are valued for their simplicity, durability, and ability to accommodate angular misalignment, making them essential in systems with variable or offset shaft angles.

A bellows coupling is a type of flexible coupling that uses a metallic bellows as the flexible element to connect two shafts. The bellows allow for the transmission of torque while compensating for angular, axial, and radial misalignments. Known for their torsional rigidity and zero backlash, bellows couplings are ideal for precision applications such as robotics, CNC machines, and measuring instruments. Their lightweight, compact design and ability to operate at high speeds make them a popular choice in industries requiring accurate and reliable performance.

An Oldham coupling is a type of flexible coupling used to connect two shafts while accommodating misalignment, particularly parallel misalignment. It consists of three components: two hubs with slots and a central floating disc (also called a slider) with tongue-like projections that fit into the slots of the hubs. As the shafts rotate, the disc slides within the slots, compensating for misalignment while maintaining smooth torque transmission. Oldham couplings are commonly used in light to moderate-duty applications, such as printers, conveyors, and pumps, valued for their compact design, ease of assembly, and ability to handle misalignment without backlash.

A disc coupling is a type of flexible coupling that uses a series of thin, flexible metal discs to transmit torque while accommodating misalignment. The discs are connected alternately to the driving and driven shafts, allowing for angular, axial, and small radial misalignments through the deformation of the discs. Known for their high torsional stiffness, zero backlash, and ability to operate at high speeds, disc couplings are commonly used in precision applications such as turbines, compressors, and servo motors. They are valued for their durability, low maintenance, and ability to handle high torque with minimal wear.

A gear coupling is a type of flexible coupling that connects two shafts to transmit torque while accommodating angular, axial, and radial misalignment. It consists of two hubs with external gear teeth and a sleeve or cover with internal gear teeth that mesh with the hubs. The gear teeth allow for flexibility and efficient torque transmission, even under high loads. Gear couplings are commonly used in heavy-duty industrial applications such as steel mills, power plants, and mining equipment, where durability, high torque capacity, and reliability are essential.

A jaw coupling is a type of flexible coupling designed to connect two shafts while accommodating misalignment and damping vibrations. It consists of three components: two metal hubs with interlocking jaws and an elastomer insert (called a spider) placed between them. The elastomer spider absorbs shocks and compensates for angular, radial, and axial misalignments, ensuring smooth torque transmission. Jaw couplings are widely used in applications such as pumps, compressors, and conveyors, valued for their simplicity, durability, and ability to reduce noise and wear in rotating machinery.