Easily removable equipment coupling. Teeth make use of high-frequency hardening and surface uses chromate plating for high sturdiness. Tooth type uses crowning machining and can be used up to a optimum of 5°. Pilot 
hole items and shaft hole complete products with keyway and tap available
Gear couplings transmit the highest amount of torque and the best quantity of torque in the smallest diameter of any flexible coupling.
Each coupling consists of two hubs with crowned exterior equipment teeth. The hubs mesh with two internally splined flanged sleeves that are bolted jointly. Gear couplings accommodate angular and axial misalignment by the rocking and sliding of the crowned equipment tooth against the mating sleeve the teeth. Parallel misalignment is usually accommodated by having two adjacent hub/sleeve flex factors. Gear couplings need periodic lubrication based on the application form. They are sensitive to lubrication failures but if correctly installed and managed, these couplings have something life of 3 to 5 5 years and in some cases they can last for decades.
Gear Couplings’ triple-crowned teeth are crowned upon the root, tip and face to articulate freely and minimize wear due to misalignment. By eliminating tip-loading while reducing Gear Couplings Inner Hub And Ring Gear backlash and radial clearances,HEPT triple-crown teeth can help protect equipment from damaging loads.
13 models for general purpose, high-speed and high-torque applications
Huge flex hubs accomodate high-torque applications in space-limited installations
28 sizes
Up to 43 ins (1,067 mm) bore capacity
Up to 72,450,000 in-lb (8,185,763 Nm) torque capacity
3-year, heavy-duty warranty