Full Gear Coupling FGC 12/ FGC 112 - Gear Coupling

Key Specifications

• Maximum Torque Capacity: 152,800 Nm
• Maximum Speed: 1,900 RPM
• Bore Diameter Range (shaft bore): 75 mm – 200 mm
• Outer Diameter (approx.): 590 mm
• Approximate Weight (full‑flex version): 285 kg

How It Works

The coupling consists of two hubs with external crowned gear‑teeth mounted on the driving and driven shafts, and two outer sleeves with matching internal gear‑teeth. As the driving shaft rotates, torque is transmitted through the meshed teeth to the driven shaft. The crowned‑tooth geometry and gear‑sleeve design allow the coupling to tolerate angular, parallel, and axial misalignments — ensuring smooth power transmission even if the shafts are not perfectly aligned.

Benefits

• Very high torque transmission: Designed to handle heavy‑duty industrial loads thanks to high torque rating.
• Misalignment tolerance: Can accommodate angular, parallel and axial misalignments — reducing stress on shafts and bearings.
• Shock and vibration absorption: Gear‑coupling design helps absorb shock loads and damp vibrations under heavy or fluctuating loads.
• Durability and long service life: Robust forged‑steel hubs and sleeves with hardened and machined gear teeth ensure reliable performance under demanding conditions.
• Compact and efficient for its torque class: Despite high capacity, coupling remains relatively compact compared with alternate solutions for similar torque ratings.
• Maintenance‑friendly (with proper lubrication): With correct lubrication and alignment, maintenance needs remain manageable, extending service life and reducing downtime.

Typical Applications

• Rolling mills, steel plants, and heavy‑metal industry drives
• Cement plants, crushers, conveyors, and heavy material‑handling equipment
• Pumps, compressors, blowers, fans, mixers, and other heavy‑duty machinery under continuous or high‑load service
• Mining, aggregate‑handling, and other rugged industrial drives with high torque demands and shaft misalignment potential
• General heavy‑load industrial machinery requiring reliable power transmission under misalignment, shock, or varying loads

Selection & Installation Considerations

• Ensure that the driven machine’s power requirement and peak load match the coupling’s torque capacity (≈ 152,800 Nm).
• Verify shaft bore diameters to be within 75–200 mm for compatibility with FGC 12.
• Confirm shaft speed does not exceed 1,900 RPM for safe operation.
• Allow sufficient space for coupling’s outer diameter (≈ 590 mm) and consider misalignment tolerances during installation.
• Plan for proper lubrication (grease or oil depending on operating temperature and load) and regular maintenance to ensure long service life.
• Consider operating conditions: heavy loads, possible shaft misalignment, shocks and vibration — where a robust coupling like FGC 12 is especially suitable.

Summary

Full Gear Coupling FGC 12 offers a high‑torque, heavy‑duty coupling solution — capable of transmitting up to 152,800 Nm with shaft bore range of 75–200 mm and speed up to 1,900 RPM. Its flexible gear‑sleeve configuration allows angular, parallel, and axial misalignment absorption, making it ideal for demanding industrial applications such as rolling mills, heavy conveyors, crushers, cement plants, pumps, compressors, mining drives, and other heavy‑load equipment. With robust construction, high torque rating, and maintenance‑friendly design, FGC 12 provides a reliable, long‑lasting power‑transmission coupling for heavy‑duty industrial use.