GI Double Diaphragm Series Coupling

GI Double Diaphragm Series Coupling

Product descriptions

This coupling is designed to deliver both exceptional torsional stiffness and high misalignment capacity, two features rarely found together in a single component.

The Double Diaphragm Advantage:

Its sophisticated structure utilizes two thin, flexible metallic diaphragms (discs), which are rigidly connected by a precision-machined central spacer or spool. These assemblies are firmly secured to the precision-machined, high-strength aluminum alloy hubs at either end.

This double-diaphragm architecture is what provides its remarkable performance:

• Zero Backlash: Ensures precise, synchronized torque transmission.
• High Torsional Stiffness: Maintains positional integrity, even under heavy load.
• Significant Misalignment Capacity: Effectively compensates for all three types of misalignment (angular, parallel, and axial) without inducing destructive reaction forces.

The GI Double Diaphragm Coupling Series is the indispensable choice for connecting large servo motors to heavy-duty ball screws, high-speed pumps, and industrial machinery where uncompromising reliability and structural integrity are paramount.

Key Features and Advantages

The GI Double Diaphragm Coupling Series is engineered for maximum performance, precision, and longevity in the most demanding motion control applications.
1. Absolute Zero Backlash and Synchronization

The all-metal construction guarantees instant and absolutely zero-backlash torque transmission. Crucially, it exhibits extremely high torsional stiffness, which is the non-negotiable requirement for maintaining precise positional synchronization and dynamic control in advanced servo-controlled systems.
2. Superior Parallel Misalignment Compensation

The unique double-diaphragm architecture is inherently excellent at accommodating significant parallel offset (radial misalignment). By allowing the two diaphragms to flex independently in an S-shape, the design effectively eliminates excessive reaction forces on connected components.
3. High Power Density and Torque Capacity

Engineered for strength, the diaphragm coupling can reliably handle significantly higher continuous torque compared to other flexible designs like bellows or beams. This high power density makes it the mandatory choice for connecting larger, more powerful motor systems to heavy-duty loads.
4. All-Metal, Maintenance-Free Reliability

Constructed entirely from premium metallic materials (aluminum hubs, stainless steel/high-strength alloy diaphragms), the coupling requires no lubrication, no periodic inspection, and no replacement of wear parts. This provides a robust, "set-and-forget" solution for a long and reliable service life.
5. Exceptionally Low Reaction Forces

The sophisticated flexibility of the thin diaphragms ensures that the forces transmitted back to the motor and driven equipment bearings (caused by inevitable misalignment) are exceptionally low. This crucial protective feature directly translates into extended bearing and seal life for your expensive machinery.
6. Customizable Spool Length for Versatility

The central spool (spacer) length can be specified to meet application requirements. This allows for increased parallel misalignment capacity and greatly facilitates easier mounting and removal of components in complex setups that feature longer shaft gaps.

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