KTR ROTEX 90 Aluminum Jaw Coupling Set — High-Speed Pump and Compressor Drives

KTR ROTEX 90 Aluminum Jaw Coupling Set — Lightweight for High-Speed Saudi Compressor Applications

The KTR ROTEX 90 aluminum jaw coupling is designed for high-speed applications up to 6,000 RPM where aluminum hubs reduce rotating mass and inertia — critical for compressor drives in Saudi Arabia gas processing facilities and LNG infrastructure. The reduced mass enables faster acceleration and deceleration cycles on VFD-controlled compressor motors, improving energy efficiency in variable-load operations.

The ROTEX 90 torsionally flexible design absorbs torsional vibration from compressor cylinders, protecting motor bearings and drive shafts from harmful resonance. Saudi gas processing plants in Berri, Khursaniyah, and Hasbah require couplings that handle cyclic torque loads and start/stop frequency of compressor drives.

Product Specifications

Manufacturer: KTR Kupplungstechnik GmbH. Torque: 450–900 Nm. Hub material: Aluminum. Bore range: 20–70mm. Max speed: 6,000 RPM. Spider: polyurethane 94 Shore A. Temperature: -30°C to +90°C. Misalignment: 0.5mm angular, 0.4mm radial.

Frequently Asked Questions

Q1: 6,000 RPM with aluminum hubs. For higher speeds, specify steel hubs (up to 8,000 RPM).

Q2: Taper bore versions available for gearbox output shafts.

Q3: Use 98 Shore A spider (orange) for high-torque compressor applications.

Q4: Standard bores (35mm, 45mm, 50mm) stocked in Jeddah. Non-standard bores: 2–3 weeks from Germany.

Q5: Yes — ATEX-certified versions for Zones 1, 2, 21, and 22 are available.