Mechanical Power Transmission products for Marine & Port Industry

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Mechanical Power Transmission products for Marine & Port Industry

Flexible Gear Couplings

High performance and easy in installation manufactured using fully automatic hobbing machine.

Roller Chain Couplings

Roller Chain Flexible Couplings are compact, long lasting flexible couplings, capable of transmitting relatively high torques with minimum of space consumption

Torque Limiter

Nu-Teck torque limiter is a protective device that limits torque transmitted in a drive system by slipping when torque demand exceeds a preset value as a result of shock loads, over loads, or machine jams.

Sprockets

Nu-Teck Sprocket Wheels are manufactured from quality materials. Teeth are hob-cut for correct tooth form, tooth thickness and profile.

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Mechanical Power Transmission Products for Marine & Ports Industry

In the Marine & Ports industry, power transmission components must perform reliably in one of the most demanding environments on earth — continuous salt-spray exposure, hull flexure-induced misalignment, high shock loads from wave action and cargo handling, and the confined spaces of engine rooms and crane machinery houses. Corrosion, unplanned downtime at sea, and port operational delays carry severe safety and commercial consequences.

At Nu-Teck, we provide high-performance Gear, Disc, Tyre, and Jaw Couplings, along with Heavy-Duty Gear Pinions and Corrosion-Resistant Sprockets, engineered for the full range of marine and port applications — from ship propulsion and deck machinery to container terminal cranes and shipyard equipment.

Power Transmission Products for Marine & Port Industries

Applications in the Marine & Ports Industry

Application-wise coupling reference across Ship Propulsion, Deck Machinery, Port Terminal Equipment, Marine Auxiliaries, and Shipyard sections

Application	Nu-Teck Coupling	Nu-Teck Advantage
Ship Propulsion & Main Drive
Main Propulsion Shaft Line (Engine to Gearbox)	Gear Couplings (Heavy-Duty, Spacer Type)	Transmit full engine torque to the propeller shaft — spacer type accommodates shaft misalignment from hull flexure and thermal growth, while absorbing torsional shock from propeller cavitation and wave impact loads.
Propeller Shaft & Stern Tube Drive	Gear Couplings (Marine Grade)	Marine-grade gear couplings with corrosion-resistant construction for the continuous salt-water environment of the stern tube area — engineered for the high continuous torque and axial thrust of propeller shaft drives.
Azimuth Thruster & Bow Thruster Drives	Gear Couplings & Disc Couplings	Disc couplings provide zero-backlash, torsionally rigid connection for dynamic positioning thruster drives — zero lubrication requirement eliminates maintenance access challenges in sealed thruster pod units.
Deck Machinery & Cargo Handling
Anchor Windlass & Mooring Winch Drives	Gear Couplings (Heavy-Duty) & Gear Pinions	Handle the massive shock and peak torque of anchor dropping and mooring rope tensioning — case-hardened gear pinions at 60 HRC resist the corrosive salt-spray deck environment and high-cycle winch duty.
Cargo Crane & Derrick Winch Drives	Gear Couplings (Spacer Type ) & Gear Pinions	Spacer type allows rope drum or gearbox maintenance without disturbing the drive motor in confined deck machinery spaces — heavy-duty pinions handle the high inertia loads of cargo lifting and lowering cycles.
Hatch Cover & Ramp Drive Mechanisms	Jaw Couplings & Sprockets	Maintenance-free jaw couplings drive hatch cover and vehicle ramp hydraulic pump units — corrosion-resistant construction withstands continuous salt-spray exposure on open deck and ro-ro vessel environments.
Port & Terminal Equipment
Ship-to-Shore (STS) Container Crane — Hoist & Gantry	Gear Couplings (Heavy-Duty, Spacer Type)	Handle extreme torque in high-cycle container handling — spacer type allows rope drum or gearbox maintenance without disturbing the drive motor in the confined STS crane machinery house.
Rubber Tyred Gantry (RTG) & Rail Mounted Gantry (RMG) Cranes	Gear Couplings & Jaw Couplings	Gear couplings on hoist drives handle high torque container lifting cycles — jaw couplings on travel and cross-travel drives provide maintenance-free, vibration-damped operation for the frequent start-stop duty of yard crane movements.
Reach Stackers & Straddle Carrier Drives	Gear Couplings & Heavy-Duty Sprockets	Heavy-duty gear couplings transmit high torque for container lifting and stacking — induction-hardened sprockets on travel chain drives resist the abrasive port environment and high-cycle duty of container terminal operations.
Bulk Terminal — Ship Unloaders & Stackers	Gear Couplings (Spacer Type) & Gear Pinions	Drive slewing, luffing, and bucket wheel mechanisms on continuous ship unloaders — spacer couplings absorb structural deflection misalignment and allow conveyor or drive maintenance without disturbing the main drive.
Marine Auxiliaries & Onboard Systems
Marine Diesel Generator Sets	Gear Couplings / Disc Couplings	Disc couplings provide torsionally rigid, zero-maintenance connection between marine diesel engines and alternators — eliminating lubrication requirements in generator room environments where oil contamination is unacceptable.
Ballast Water, Fire, & Bilge Pumps	Tyre / Jaw Couplings	Tyre couplings absorb high misalignment in pump drives subject to hull flexure and pipe thermal growth — easy elastomer replacement without moving the pump or motor in the confined spaces of the engine room.
HVAC, Cooling Water & Sea Water Pumps	Jaw / Tyre Couplings	Corrosion-resistant jaw and tyre couplings drive cooling water and sea water pump systems — maintenance-free snap-wrap design allows elastomer replacement in the confined, humid engine room without specialist tools.
Shipyard & Dry Dock Operations
Dry Dock Caisson / Gate Drive & Pumps	Gear Couplings (Spacer Type)	Drive dock gate opening mechanisms and dewatering pump systems — spacer type allows pump or seal maintenance without disturbing the drive, handling the high static head loads of dry dock dewatering operations.
Shipyard Travelling Cranes & Goliath Cranes	Gear Couplings (Spacer Type) & Gear Pinions	Drive large-span goliath cranes for ship block assembly — spacer couplings absorb misalignment from rail deflection under heavy block loads, while precision gear pinions ensure smooth, controlled travel across the shipyard.

Nu-Teck Customised Products for Marine & Ports Industry

Nu-Teck's specialised products are engineered to meet the corrosion, misalignment, shock load, and confined-space maintenance challenges unique to marine and port applications :

Coupling / Product Type	Description & Nu-Teck Advantage
Nu-Teck Marine-Grade Gear Couplings & Pinions	Corrosion-resistant construction for ship propulsion, deck machinery, and port crane drives — case-hardened to 60 HRC, engineered for the continuous salt-spray environment and high shock loads of marine and port applications.
Nu-Teck Spacer Type Gear Couplings (Ext. DBSE)	Extended spacer for propulsion shaft, winch, crane, and pump drives accommodates hull flexure misalignment and allows drum, seal, or gearbox maintenance without disturbing the motor — critical in confined ship and crane machinery spaces.
Nu-Teck Disc Couplings (Zero-Backlash)	Zero-backlash, zero-lubrication design for thruster, generator, and classifier drives — eliminates maintenance requirements in sealed thruster pods and generator rooms where oil contamination is operationally unacceptable.
Nu-Teck Jaw Couplings (Snap-Wrap)	Corrosion-resistant, maintenance-free operation for deck machinery, pump, and auxiliary drives — snap-wrap elastomer replacement in minutes without moving the motor, ideal for the confined and humid spaces of engine rooms and port equipment.
Nu-Teck Tyre Couplings	High misalignment tolerance for ballast, bilge, cooling, and sea water pump drives — absorbs hull flexure-induced misalignment and pipe thermal growth in the marine environment without requiring realignment.
Nu-Teck Induction-Hardened Sprockets	Corrosion-resistant, wear-resistant sprockets for reach stacker, straddle carrier, and hatch cover chain drives — induction-hardened teeth resist the combined abrasive and salt-corrosion environment of port terminal operations.