The FCL Coupling is a compact, reliable, and cost-effective flexible pin coupling widely used in general industrial power transmission. It consists of two cast iron or steel hubs connected by a set of high-strength nylon elastic pins. The coupling transmits torque through the elastic deformation of the pins, providing effective damping, shock absorption, and compensation for minor shaft misalignments.
Thanks to its simple structure, easy installation, and low maintenance cost, the FCL Coupling is ideal for medium- and small-power machinery such as pumps, fans, compressors, and conveyors.
Materials & Surface Treatment
Hubs: Cast iron, ductile iron, carbon steel (C45, 1045, or 42CrMo optional)
Pins: High-strength nylon / polyurethane
Surface treatment: Painting, black oxide, electrophoresis, or customized finishing
Features
1.Simple structure and easy maintenance
Nylon pins can be replaced quickly without moving the connected equipment.
2.Excellent damping and vibration reduction
Elastic pins absorb impact loads and ensure smooth operation.
3.Compensates for misalignment
Allows for minor angular, radial, and axial deviations between shafts.
4.Low cost and high performance
Offers an economical solution for general mechanical applications.
5.Durable and reliable
Nylon pins are wear-resistant, oil-resistant, and maintenance-free.
6.Strong interchangeability
Dimensions comply with common industrial standards and match a wide range of machinery.
Applications
Pumps, fans, blowers
Air compressors and cooling equipment
Conveyors, mixers, light-duty industrial machinery
Gear reducers and general mechanical drives