Mechanical Power Transmission Disc Couplings DI-8 Performance Data 24 DI-8 Type Industrial Coupling The DI Type coupling is the standard 8 bolt coupling with two hubs and a spacer assembly that can be installed or removed without disturbing the equipment and hubs and without removing the disc packs from the spacer assembly. Custom spacer lengths can be specified for special applications. The coupling has two flex planes (one at each disc pack) so it can accommodate parallel misalignment by the angular misalignment in each disc pack. This configuration will also accommodate axial misalignment within the specified limits. Note 1 indicates: Operating speed must be equal or less than permissible speed which is limited by the weight and critical speed of the spacer. n 2 indicates: Couplings as manufactured can accommodate maximum speeds as listed. Higher speeds up to the value shown as 'Bal' require special balancing. n 3 indicates: The maximum bores shown are for cylindrical or taper shafts with keys. For splines and other types of bores, contact jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk n 4 indicates: Weight is given for a complete coupling with maximum bores. n 5 indicates: Axial misalignment is given for two disc packs. n 6 indicates: Angular misalignment is given for one disc pack. Features » Designed to meet the API 610 Standard. » Support for additional API requirements available on request. » Unitized disc pack. » Infinite life if properly aligned. » Torsionally rigid without any back lash. » No need for lubrication or maintenance. » No wearing parts and high resistance to harsh environmental conditions » Puller holes standard with this design. (Drop In Centre) www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
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