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GR-38 Complete Coupling
Original price was: £139.00.£104.25Current price is: £104.25.
| Parameter | Value | Notes |
|---|---|---|
| SKU | GR-38 | Aroflex part number |
| Standard Max Bore | 45mm | |
| Outside Diameter | 80mm | |
| Total Assembled Length | 114mm | |
| Insert Material | Red Polyurethane (98 Shore A) | |
| Rated Torque (Nominal) | 325Nm | |
| Max Speed | 7100 RPM (Steel Hub) / 4750 RPM (Cast Iron) | |
| Alignment Tolerance | Radial: 0.28mm / Angular: 1.0° / Axial: -1.0 to +1.8mm | |
| Weight | 2.72 kg | |
| Dimensions | 8 × 8 × 11.2 cm | Overall envelope |
| Bore Tolerance | H7 | Precision transition fit |
| Material | Steel / Friction disc | Standard construction |
| Certification | ISO 9001:2015 | Quality assured |
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GR-38 Series Complete Coupling
The GR-38 Series is a robust, torsionally flexible industrial coupling designed for reliable power transmission and shock absorption. This complete set features two high-strength hubs and a precision-moulded polyurethane spider, engineered to protect connected machinery by dampening torsional vibrations and compensating for shaft misalignments.
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Superior Torque Handling: Rated for 325Nm (with Red 98 Sh-A insert), offering substantial capacity for heavy-duty pumps, large fans, and industrial compressors.
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98 Shore A Hardness Insert: The high-durometer red polyurethane spider provides excellent resistance to oils, chemicals, and extreme temperatures (-30°C to +90°C continuous / up to 120°C peak).
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Vibration Damping: The curved jaw design is specifically optimised to absorb operational shocks and resonance, significantly extending the service life of bearings and seals in high-torque drive-trains.
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Durable Hub Construction: Supplied in high-quality cast iron (GJL) or steel, providing the structural mass and durability required for steady-state industrial power transmission.
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Fail-Safe Operation: Designed as a “fail-safe” coupling; the jaws will remain interlocked to transmit torque even if the elastomer spider fails, preventing a complete loss of drive in critical systems.
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