Misalignment Shaft Couplings Guide
Misalignment Couplings transfer torque or power while absorbing misalignment between two rotating shafts. Shaft couplings are commonly used within high power and torque applications, including motors, gearboxes, and other precision drive components. There are various types of coupling options used to meet your unique specifications.
Shaft Coupling OptionsOndrives.US offers various standard and custom premium shaft coupling options to meet the needs of any application.
Beam CouplingsBeam Shaft Couplings transmit torque or power from one shaft to another and are offered in the following four options:
- Spiral – 7 degrees of angular offset and torques up to 1240 inch-lbs. and up to 5,000 RPM
- Servo Beam – Operates up to 10,000 rpm, up to 7 degrees angular compensation, with torques up to 300 in-lbs.
- Step Beam – Electrically isolating and does not wind up when they reverse direction, up to 220 in-lbs. in torque and 10,000 RPM
- Slit Beam – High rigidity and offer high torque and torsional stiffness
Disc CouplingsDisc couplings are used to connect two shafts to transmit torque. Disc Couplings are available in the following two options for your motion control application needs:
- Oldham Sliding Disc Couplings – 3-piece coupling mechanism that provides generous radial compensation, rated for zero-backlash for up to 10,000,000 rotations, allows up to 0.5 degree angular offset while electrically isolating the drive from the driven component
- Membrane Disc Shaft Couplings – Torsional rigid design with zero-backlash, can accommodate up to 4° of angular offset, up to 885 in-lbs. in torque and 5,000 RPM
Spider Jaw CouplingsSpider Jaw Couplings feature two metal hubs and a polyurethane element that can handle torque up to 1060 inch-lbs and speeds up to 40,000 RPM for light power drives or where misalignment is small. Spider Jaw Couplings are available in the following two formats:
- Curved Jaw – Accommodates angular misalignment and slight axial misalignment
- Cardan Jaw – Also accommodates radial misalignment
Servo High Gain CouplingsServo High Gain Couplings are electrically isolating and are primarily used for servo motor systems within semiconductor manufacturing equipment, offering zero-backlash and speed response frequencies without the problematic effects of vibration.
Bellows CouplingsMetal bellows couplings are flexible couplings with two fastening hubs connected to a series of flexible stainless steel or bronze bellows (corrugations). The corrugations absorb axial forces created by thermal expansion as the motor heats up. Bellows couplings can handle higher operating temperatures than elastomer couplings and are available in the following three options:
- High Misalignment – Ideal for use in metering valves, positioning slides, pulse generators, scanners, servo drives, and velocity control systems, torques up to 111 in-lbs. and 5,000 RPM
- Encoder Shaft Couplings – Typically used within applications requiring high precision, providing zero-backlash and a superior combination of angular, radial, and axial misalignment, torques up to 18 in-lbs. and 52,000 RPM
- Torque to 3098 lbs.-in – Ideal for use in virtually any motion control application, including servo drives and velocity control systems, delivering low inertia, zero-backlash, and nominal torque up to 3098 in-lbs. and 20,000 RPM