Full Gear Coupling FGC 13A/ FGC 113A - Gear Coupling

Key Specifications

• Nominal / Maximum Torque Capacity: ~ 380,000 Nm
• Maximum Speed: ~ 1,400 RPM
• Bore Diameter Range (shaft bore): Approx. 200 mm – 340 mm
• Outer Diameter (approx.): 730 mm
• Suitable Maximum Shaft Diameter: up to ~ 340 mm

How It Works

The coupling uses two hubs with crowned external 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 via the meshed teeth to the driven shaft. The crowned‑tooth profile and flexible gear‑sleeve configuration allow the coupling to tolerate angular, parallel, and axial misalignments — ensuring smooth and reliable power transmission even if shafts are not perfectly aligned. Proper lubrication (grease or oil) is recommended for smooth functioning.

Benefits

• Very high torque and power capacity: Capable of transmitting large torque — suitable for very heavy‑duty industrial machinery and high load demands.
• Misalignment tolerance: Can accommodate angular, parallel, and axial misalignments, reducing stress on shafts, bearings, and connected equipment under load or thermal shifts.
• Shock and vibration absorption: Gear‑coupling design helps absorb shock loads and damp vibrations under heavy load or fluctuating operation.
• Durability and long service life: Forged / cast steel hubs and sleeves with hardened, precision‑machined gear teeth ensure reliable performance under demanding conditions.
• Compact for its capacity class: Despite high torque rating, coupling remains comparatively compact vs alternatives for similar capacity.
• Maintenance‑friendly (with proper lubrication): With correct lubrication and regular inspection, coupling can deliver long-term, stable operation in heavy‑duty environments.

Typical Applications

• Rolling mills, large steel/metal‑industry drives demanding high torque and heavy loads.
• Cement plants, heavy crushers, large conveyors, and bulky material‑handling equipment.
• Pumps, compressors, blowers, fans, mixers and other heavy‑duty machinery under continuous or high‑load service.
• Mining equipment, aggregate handling, and other rugged industrial drives with high torque requirement and possible shaft misalignment or heavy shock loads.
• Any heavy‑load industrial machinery requiring very high torque transmission with flexibility and reliability under severe operating conditions.

Selection & Installation Considerations

• Ensure the driven machine’s power requirement and peak load demand align with coupling’s torque capacity (≈ 380,000 Nm).
• Verify shaft bore diameters and shaft dimensions are compatible (approx. 200–340 mm bore for FGC 13A).
• Confirm shaft speed does not exceed rated speed (~ 1,400 RPM) for safe operation and longevity.
• Allow sufficient space for coupling’s outer diameter (~ 730 mm) and ensure correct alignment and installation tolerances during assembly.
• Plan for proper lubrication (grease or oil depending on service conditions) and regular maintenance to ensure smooth operation and long service life.
• Consider operating environment — heavy loads, misalignment, shocks, vibration — where robust coupling such as FGC 13A offers best performance.

Summary

Full Gear Coupling FGC 13A delivers a top‑tier, heavy‑duty coupling solution capable of transmitting up to ~ 380,000 Nm torque at shafts with bore sizes from ~200 mm to ~340 mm, with allowable speed up to ~1,400 RPM. Its robust construction, high torque capacity, misalignment compensation, and shock‑absorbing design make it ideal for large‑scale industrial drives such as steel mills, cement plants, mining equipment, crushers, heavy conveyors, and other heavy‑load machinery. With correct installation and regular lubrication / maintenance, FGC 13A ensures reliable, long‑lasting power transmission under the most demanding industrial conditions.