Pump Drive Components Introduction to the Spidex® NBL Coupling The NBL series curved jaw coupling offers zero backlash capability in a 3-piece design. The coupling is provided assembled under preload. The NBL series can be used in a variety of different applications requiring precision and accuracy. The NBL series spider features a straight centre of the spider tooth, providing higher stiffness due to coupling preload. The crowning of the ends of the spider legs allows for misalignment, while the curved jaws and solid spider centre provide high-speed capability. The jaws of the hubs and the spider legs are chamfered to provide easy assembley. The NBL coupling design also allows the blind assembly in tight spaces. Raised spider dots on the legs of the spider ensure proper spacing of the hubs and spider. Proper installation of the coupling can provide isolation of electrical currents. Check the 's' dimension listed on page 24 to ensure the proper spacing between spiders between spiders and hubs. The NBL coupling has spiders available in four different shore hardnesses. Each spider offers benefits for different vibratory, environmental and torque transmission requirements. Elastomer Performance Data for NBL Series Coupling Selection for the NBL Series Typical Applications Measurement and Control Systems The torsional stiffness of the NBL series coupling provides the needed accuracy for measurement and control systems. The low torques of these applications gives the NBL series the ability to provide zero backlash due to the elastomer preload. Servo and Positioning Drives The NBL coupling provides a zero backlash, flexible connection for servo and positioning drives. An added benefit of the NBL series is its damping capabilities. For applications that have vibrations at critical speeds, the NBL coupling can provide a zero backlash solution for vibration problems. 22 #DriveLineHarmony www.jbj.co.uk/couplings.html
RkJQdWJsaXNoZXIy NzQyNjQ=