GR4-6.7D-A Arch-Type Wire Rope Isolator
The GR4-6.7D-A Wire Rope Isolator is designed for lightweight equipment that needs a relatively soft suspension and additional deformation travel. With a rated vertical static load of 6.7 N and maximum vertical deflection of 49.3 mm, it is particularly suitable for compact cameras, optical sensors, aerial-survey payloads and small communication modules.
Its arch-type stainless steel cable arrangement responds to vibration and shock from several directions. Instead of relying on rubber, the isolator uses metal wire rope deformation and strand-to-strand friction to absorb energy. This makes it a practical option for equipment exposed to repeated vibration, transportation impact, temperature variation or long storage periods.
The GR4-6.7D-A is also available with six mounting configurations, allowing engineers to match through holes, threaded holes and countersunk connections to different installation structures.
Key Features
Large available deflection
A maximum vertical deflection of 49.3 mm provides additional movement for energy absorption and helps the isolator respond progressively under vibration and shock loading.
Stainless steel wire rope construction
The cable element offers strong fatigue resistance and does not suffer from the hardening, cracking or permanent aging commonly associated with some elastomer materials.
Multi-directional response
The arch-shaped rope arrangement works under compression, inclined compression and shear movement, providing protection against vibration arriving from different axes.
Six mounting configurations
A, B, C, D, E and S installation styles are available, including combinations of through holes, threaded holes and countersunk connections.
Maintenance-free all-metal design
The isolator does not require lubrication and contains no rubber element that needs routine replacement.
product details
Product Data Sheet
| Curve No. | Model | Max Static Load (N) | Max Deflection (mm) | Vibration Stiffness (kN/m) | Shock Stiffness (kN/m) |
| 1 | GR4-24D-A | 24 | 19.6 | 12 | 5.8 |
| 2 | GR4-18D-A | 18 | 29.7 | 6 | 2.5 |
| 3 | GR4-13D-A | 13 | 35.8 | 4.4 | 1.6 |
| 4 | GR4-6.7D-A | 6.7 | 49.3 | 2.2 | 0.7 |
Product Advantages
Progressive shock-energy absorption
The stainless steel cable bends, twists and moves slightly between individual strands during impact. This converts a portion of the incoming energy into frictional damping, allowing the unit to function as a compact Wire Rope Shock Absorber.
Protection in more than one direction
Cameras, UAV payloads and vehicle-mounted electronics rarely experience purely vertical vibration. Acceleration can also occur laterally and longitudinally. The GR4 cable layout helps address these mixed loading conditions without requiring separate isolators for every axis.
Long-term dimensional stability
The all-metal assembly is suitable for applications involving repeated use, long storage periods and changing environmental conditions. It does not depend on rubber hardness to maintain its basic operating characteristics.
Performance Benefits
Lower peak shock transmission
The cable loops provide deformation travel during sudden impact. This helps spread the shock event over a longer movement period and can reduce the peak load reaching the protected equipment.
Improved image and measurement stability
Vibration control can reduce micro-movement in optical and surveying systems, supporting clearer imaging, more stable tracking and more consistent measurement results.
Reliable repeated-load performance
Stainless steel wire rope withstands repeated bending and compression cycles, making the GR4-6.7D-A suitable for mobile equipment and platforms exposed to recurring operational vibration.
Reduced routine maintenance
As a maintenance-free Stainless Steel Wire Rope Isolator, the product requires no oiling, rubber replacement or regular stiffness adjustment.
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