Overview
The NBK MJT-30 flexible shaft coupling is a jaw-type flexible coupling from NBK’s Couplicon series, a trusted range of motion control components used in industrial automation and machinery applications. This coupling is engineered to transmit torque between misaligned shafts while absorbing shock loads and vibration, making it ideal for direct-drive applications in pumps, motors, compressors, and other rotating equipment.
Key Features
- Jaw-type flexible design for smooth torque transmission and vibration damping
- Compact footprint with 1-3/16″ outer diameter
- Set screw or set screw + key mounting options available
- Accommodates minor shaft misalignment (angular and parallel)
- Low backlash design for precision motion control
- Durable elastomer coupling element for extended service life
Technical Specifications
- Coupling Type: Jaw-type flexible coupling
- Series: Couplicon MJT-30
- Outer Diameter: 1-3/16″ (approximately 30 mm)
- Bore Diameters: Multiple configurable options (standard sizes 8-14 mm available)
- Mounting: Set screw type or set screw + key type
- Material: Steel hub with elastomer coupling element
- Operating Temperature: -10°C to +80°C (standard)
- Backlash: Low backlash for precision applications
Typical Applications
- Small to medium-duty industrial motor-pump couplings
- Servo motor coupling in CNC and automation systems
- Gearbox input shaft connections
- Air compressor and hydraulic pump drive shafts
- General machinery shaft alignment and torque transmission
Compatibility & Replacements
Compatible With
- AC and DC electric motors
- Servo motors and stepper motors
- Gear reducers and gearboxes
- Centrifugal and positive displacement pumps
- Industrial compressors and blowers
- Spindle drives in machine tools
Replaces / Drop-In Replacement For
The NBK MJT-30 series directly replaces previous-generation NBK MJT-30 couplings with the same bore diameter and mounting configuration. Verify compatibility with your system integrator before ordering to confirm bore sizes and key slot requirements match your application.
Works With
- Standard set screw or set screw + key mounting
- Metric and imperial bore sizes (8 mm, 10 mm, 12 mm, 14 mm)
- Both solid and hollow shaft applications
- Flexible shaft coupling replacement programs from major industrial suppliers
