Drive Components
Pin & Bush Couplings
Couplings designed for reliable power transmission, misalignment compensation, and torsional flexibility in demanding industrial drive systems.
Reliable Drive Connections, Engineered for Your Application
The pin-and-bush design allows the coupling to accommodate parallel, angular, and axial misalignment, while the flexible elements provide considerable torsional flexibility. This makes pin and bush couplings well suited to industrial drive systems where reliable power transmission, vibration control, and tolerance to operating conditions are important.
Available in a broad range of sizes and configurations, Pin & Bush Couplings can be selected according to the required torque, speed, bore, and installation requirements. Taper Lock configurations are also available, using standard Taper Bushes to simplify shaft connection and installation.
General Industrial Machinery
Pumps, Motors & Drives
Material Handling & Processing
Manufacturing & Heavy Industry
Eflex Pin & Bush Coupling
Its construction helps absorb shock and torsional loads within the drivetrain, making it suitable for a wide range of industrial power transmission applications. Coupling ratings depend on the number of pins and the stiffness of the installed buffer elements.
- Flexible pin-and-bush construction
- Accommodates parallel, angular, and axial shaft misalignment
- Provides considerable torsional flexibility
| Coupling Size | 72–630 |
| Torque Capacity | Up to 96,000 Nm* |
| Maximum Speed | Up to 6,000 rpm* |
| Maximum Bore | Up to 240 mm* |
*Maximum values depend on coupling size and configuration. Published ratings are based on the maximum number of pins and standard 90A Shore buffers; ratings are reduced when fewer pins or different buffer configurations are used.
Choosing The Right Coupling For The Job
There’s a lot to consider when choosing the right DESCH product for your specific application.
Conditions
From environmental exposure to system constraints, the right solution must align with how your equipment runs.
Key factors to assess include:
- Shock and vibration levels
- Duty cycle
- Ambient operating conditions
Shaft & Alignment Requirements
One of the key advantages of a Pin & Bush Coupling is its ability to accommodate shaft misalignment while maintaining reliable torque transmission.
When evaluating shaft arrangement, consider:
- Parallel shaft misalignment
- Angular shaft misalignment
- Axial movement
Configuration
Configuration should be matched to the mechanical and installation requirements of the application.
Configuration considerations include:
- Required coupling size
- Number of pins and flexible elements
- Buffer stiffness
Maintain For Longevity
While DESCH products are engineered for long-term performance, appropriate maintenance helps protect reliability, extend service life, and prevent avoidable downtime.
- Install and align the coupling according to the applicable manufacturer’s instructions.
- Verify that the coupling is correctly sized for the required torque, speed, and duty cycle.
- Inspect pins, bushes, and other coupling components for wear or deterioration.
- Monitor the coupling and connected equipment for abnormal vibration, noise, or operating changes.
- Replace worn or damaged flexible elements with the correct specification for the coupling.
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