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GEAREXAll-steel gear coupling

Operating description

GEAREX couplings made from steel with grease lubrication and toroidal sealing ring correspond to the international standard. Being flexible shaft connections they are suitable for a positive torque transmission. In addition, they ensure to compensate for axial, radial andangular shaft displacements.GEAREX couplings are used in every range of general engineering requesting for high operating safety and a long service life resultingfrom the reliable grease lubrication of the crowned spline. The couplings are suitable for horizontal assembly. As special solutions theyare suitable for vertical assembly, too.Numerous coupling sizes for a torque transmission from 930 Nm to 135.000 Nm with shaft dimensions up to a maximum of Ø276 mmare available. The coupling torques may be increased by using special materials.GEAREX couplings are in correspondence with the AGMA standard (
GEAREX A merican G ear M anufacturer A ssociation). Small dimensions anda low weight along with a small mass moment of inertia result in a wide range of applications of GEAREX couplings.
hubsleevesleeve Hub with crowned spline (GEAREX) GEAREX couplings are suitable for power transmission in drives in hazardous areas. Thecouplings are certified and confirmed according to EC standard 94/9/EC (ATEX 95) as unitsof category 2G/2D and thus suitable for the use in hazardous areas of zone 1, 2, 21 and 22.Please read through our information included in the respective Type Examination Certificateand the operating and mounting instructions at www.ktr.com.According to the operating principle of the well-known crownedgear edge pressure in the spline is avoided in case of angular andradial displacements. Moreover, permanent grease lubrication produces a better friction ratio of the spline with an operation al-most free from wear along with a long service life of the coupling.In order to ensure a regular and verified lubrication in assembledcondition, two connections for hydraulics are arranged oppositeto each other radially on each coupling sleeve. As a result a com-plete GEAREX coupling has four connections being offset toeach other by 90°.The interior of the coupling is sealed by means of toroidal sealingrings (NBR 70 ShA).The feather keys have to be sealed against escape of lubricants during the assembly. Explosion-proof use 101