The FLEXXOR is a diaphragm flexible shaft coupling that has been widely used since the1960’s. It operates by carrying torque through thin spokes between an inner and outer rim, much like a bicycle wheel. Paired with Anderson Keyless Clamp Hubs, they can be installed on straight or tapered shafts in only a few minutes, yet carry tremendous amounts of torque. The FLEXXOR is an excellent solution for high-speed applications and situations with significant axial and/or angular misalignment.
For applications with short shaft-to-shaft spacing or where reduced moments are needed, see our page on Close Coupled and Reduced Moment Couplings.
Extreme Flexibility in High-Speed, High-Torque Applications
FLEXXOR flexible shaft coupling offers complete application flexibility
Unmatched Benefits of the FLEXXOR Flexible Shaft Coupling
Value to User
|Multiple paths of torque transmission share the load||Scratch or other damage to a diaphragm will not destroy coupling.|
|No lubrication or maintenance required||Reduces maintenance cost|
|Very low spring rates||Low forces on shafts, bearings, and seals for longer system life.|
|Dynamically balanced||No coupling related vibrations|
|Internal spin-off protection||Plant safety in case of a machine malfunction.|
|Easy hub adjustment for flange to flange spacing||Faster installation and no hot work permits required. No shim
|Spacer or reduced moment designs||Outstanding application flexibility|
The two most common high-performance FLEXXOR shaft couplings are the C and CC models. Torque is transmitted from the inner row of permanent fasteners through the spoke-like membranes to the outer ring of fasteners. The outer fasteners connect the diaphragms to the hub ring. Fasteners can be stainless steel rivets or shear bolts.
The FLEXXOR C model shaft couplings consist of a single set of diaphragms at each end of either a tubular or solid spacer.
CC FLEXXOR model shaft couplings use two sets of diaphragms at each end of the spacer. Therefore, CC models have twice the axial travel and 1⁄2 the spring rate of C model couplings.
Anderson Clamp Hubs – 4000 series or equivalent alloy steel heat treated to 130,000 PSI UTS minimum. Hub rings, sleeves – 1018 or 1026 carbon steel or 4000 series alloy.Diaphragms – 17-7PH, 301 full hard.Bolts – AISI 4140, 4340, 6150, 8740 alloy steel heat treated to grade 8 minimum.Locknuts – grade C minimum Special materials available such as INCO 718, Beryllium copper, Titanium, Monel.