Disc Coupling Overview

Industrial SU Type
The SU Form coupling includes a single flex plane with two hubs in addition to a single disc pack. It is actually ideal for angular and axial misalignment only. Two SU couplings tend to be mixed that has a shaft
to create a floating shaft coupling. The shaft might be hollow for extended light fat floating shaft couplings.
Industrial SX Style
This is often the typical coupling kind that contains two hubs, a stock length spacer created to meet industry typical lengths, and two unitized disc packs. The coupling has two flex planes, one particular at every disc pack, making it possible for this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is obtainable in 6 and 8 bolt types and bore sizes as much as 13 inches (330mm) within the biggest dimension. Custom spacer lengths could be produced to meet unique shaft separations demanded for certain applications. The SX coupling is often fitted with overload bushings to protect the disc packs in above torque disorders and will act as an anti-flail device. SX couplings are assembled with the time of installation over the equipment exactly where the coupling will probably be in services.
Industrial DI Form
The DI Type coupling has a “Drop-In” spacer assembly that’s assembled in the factory. The coupling includes two hubs and also a spacer assembly comprising in the spacer, two unitized disc packs, and two guard rings. The disc packs are bolted towards the spacer and guard rings at the factory using the torque values advised by Lovejoy to the disc pack bolts. Using the hubs mounted on the shafts, the complete disc pack assembly is usually “Dropped In” area between the 2 hubs. The hubs are piloted to guarantee proper centering in the spacer assembly. This piloting serves as an anti-flail attribute and aids during the coupling’s ability to meet the stability standards mandated by API. This type coupling is developed to meet the stability and anti-flail needs specified in API-610.
Oversized, or Jumbo, hubs are available for use with the DI Style coupling to allow for larger bore sizes on most DI coupling sizes. This permits for the use of smaller DI couplings in applications where a smaller sized dimension coupling can nonetheless accommodate the application torque.
Industrial SXC Sort
The SXC Form will be the near coupled variation from the SX Form coupling. The SXC is similar to the SX coupling in that the disc packs are attached when the coupling is put in. Within the close coupled units, the hubs are turned inward and therefore are mounted inside the spacer. Note that with all the hubs within the spacer, the utmost bore permitted in the hub will be decreased. The SXC couplings might be utilised with a single or both hubs turned outward to permit the coupling to accommodate distinct shaft separations.
Industrial SXCS and SXCST Forms
The SXCS and SXCST Kinds have split spacers as well as the disc packs is often serviced or eliminated devoid of moving the hubs within the shafts and with out moving the gear. The SXCS Kind has the bolts that connect the hubs towards the split spacer installed through the ends of the couplings. The SXCST possess the bolts installed from within the spacer pointing outward towards the hubs.
Extra Types