KTR ROTEX 65 Steel Jaw Coupling Set — Shaft-to-Shaft Power Transmission

KTR ROTEX 65 Steel Jaw Coupling Set — Precision Shaft Alignment for Saudi Petrochemical Plants

The KTR ROTEX 65 is a torsionally flexible jaw coupling manufactured from high-grade steel, designed for shaft-to-shaft power transmission in demanding industrial environments. For Saudi Arabia petrochemical sector — Jubail cracker units, Yanbu refineries, and Dammam process plants — the ROTEX 65 handles misalignment up to 0.5mm angular and 0.3mm radial while transmitting torque from 160–450 Nm, making it ideal for pump, compressor, and conveyor drives.

The ROTEX 65 polyurethane elastomer spider (94 Shore A) absorbs vibration and cushions shock loads during startup — critical for VFD-driven motors in variable-speed pump applications. The set includes two hubs (steel, pilot bore) and one replaceable spider element, enabling field maintenance without removing the drive motor.

Applications in Saudi Industry

Jubail Petrochemical Complex: ROTEX 65 connects pump motors to process feed pumps, compensating for thermal expansion misalignment in outdoor installations.

Water Injection Stations: High-pressure water injection pumps in Ghawar and Shaybah fields use ROTEX 65 to handle torque reversals and shock loading from plunger pumps.

Cement Plants (Riyadh/Qassim): Conveyor drives in limestone crushing and clinker handling use ROTEX 65 for vibration-dampening properties in high-dust environments.

Product Specifications

Manufacturer: KTR Kupplungstechnik GmbH. Torque: 160–450 Nm. Hub material: Steel (phosphated). Bore range: 14–55mm. Max speed: 9,000 RPM. Spider: 94 Shore A polyurethane (replaceable). Temperature: -30°C to +90°C. Misalignment: 0.5mm angular, 0.3mm radial.

Frequently Asked Questions

Q1: What is the maximum torque rating for the ROTEX 65? 160–450 Nm depending on spider hardness (94 Shore A standard, 98 Shore A for higher load). For Saudi high-ambient-temperature applications, use 98 Shore A spider.

Q2: Can I get the ROTEX 65 with finished bore (keyed to shaft)? Yes — RAZZ supplies ROTEX 65 with finished bore and keyway to your shaft specification. Standard bore range is 14–55mm.

Q3: What is the spider replacement interval in Saudi conditions? Inspect every 6 months, replace every 12–18 months in high-temperature environments (above 45°C). RAZZ stocks replacement spiders.

Q4: Is ROTEX 65 ATEX certified? Yes — ATEX Zone 2 and Zone 22 rated versions are available for petrochemical and dust-explosive environments.

Q5: Do you supply ROTEX 65 for explosive atmospheres? Yes — contact sales@razz.sa for ATEX-certified versions.