KTR 72 POLY NORM Naaf AR90 GJL 1.0 65mm

KTR POLY-NORM NAAF 90 Jaw Coupling Hub Description This is a POLY-NORM NAAF 90 jaw coupling hub from KTR, designed for fail-safe power transmission in demanding industrial applications. It is made from high-grade GJL cast iron and features a finished bore of 65 mm with a standard keyway. This component is essential for connecting shafts, compensating for misalignment, and damping torsional vibrations. Specifications Manufacturer: KTR Product Series: POLY-NORM Hub Type: NAAF 90 Material: GJL (Cast Iron) Bore Diameter: 65 mm Keyway: According to DIN 6885/1 Label Info Item Number: A0407950 Full Description: KTR POLY-NORM NAAF 90 GJL AR 1.0 65 MM Application Ideal for use in general engineering, pumps, compressors, conveyors, and any machinery requiring a flexible and reliable shaft connection. Country of Origin Made in Germany. CO2 Impact By choosing this reused component, you are helping to avoid approximately 7.0 kg of CO2 emissions compared to purchasing a new one. Availability This item is in stock and ready for immediate dispatch. Order now from profideals for expert support and fast delivery. FAQ What type of spider/element is compatible with this POLY-NORM 90 hub?This hub requires a standard POLY-NORM 90 spider, typically made from Polyurethane. Different shore hardness levels (e.g., 92 Sh-A, 98 Sh-A) are available to adjust damping characteristics and torque capacity to suit the application. Does this hub come with a keyway and set screw?Yes, as a finished part (type 1.0), this hub includes a standard keyway according to DIN 6885/1 and is prepared for a set screw to securely fasten it to the shaft. What is the maximum torque rating for a size 90 coupling?The nominal torque for a complete POLY-NORM size 90 coupling depends on the elastomer spider used, but it is typically around 400 Nm. For precise values and peak torque limits, always consult the official KTR technical datasheet. profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. Last Update: Friday, March 13, 2026