Disc Coupling Overview

Industrial SU Style
The SU Style coupling has a single flex plane with two hubs and a single disc pack. It is ideal for angular and axial misalignment only. Two SU couplings tend to be mixed by using a shaft
to produce a floating shaft coupling. The shaft may be hollow for prolonged light excess weight floating shaft couplings.
Industrial SX Kind
This is the regular coupling sort that includes two hubs, a stock length spacer designed to meet field conventional lengths, and two unitized disc packs. The coupling has two flex planes, 1 at each and every disc pack, making it possible for this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is accessible in six and 8 bolt models and bore sizes up to 13 inches (330mm) within the largest size. Customized spacer lengths could be manufactured to meet exclusive shaft separations necessary for distinct applications. The SX coupling is often fitted with overload bushings to guard the disc packs in in excess of torque circumstances and can act as an anti-flail gadget. SX couplings are assembled on the time of set up around the products in which the coupling might be in services.
Industrial DI Variety
The DI Style coupling has a “Drop-In” spacer assembly that may be assembled in the factory. The coupling consists of two hubs as well as a spacer assembly comprising in the spacer, two unitized disc packs, and two guard rings. The disc packs are bolted for the spacer and guard rings at the factory using the torque values suggested by Lovejoy for that disc pack bolts. Using the hubs mounted on the shafts, the entire disc pack assembly could be “Dropped In” location in between the 2 hubs. The hubs are piloted to make sure good centering on the spacer assembly. This piloting serves as an anti-flail characteristic and aids within the coupling’s skill to meet the stability standards mandated by API. This design coupling is intended to meet the balance and anti-flail needs specified in API-610.
Oversized, or Jumbo, hubs are available for use together with the DI Sort coupling to permit for larger bore sizes on most DI coupling sizes. This enables for the use of smaller DI couplings in applications exactly where a smaller sized size coupling can nonetheless accommodate the application torque.
Industrial SXC Kind
The SXC Variety would be the close coupled variation in the SX Style coupling. The SXC is similar to the SX coupling in the disc packs are attached when the coupling is set up. During the shut coupled units, the hubs are turned inward and are mounted inside the spacer. Note that using the hubs within the spacer, the maximum bore allowed during the hub will probably be decreased. The SXC couplings can be made use of with a single or the two hubs turned outward to permit the coupling to accommodate unique shaft separations.
Industrial SXCS and SXCST Forms
The SXCS and SXCST Varieties have split spacers as well as the disc packs could be serviced or removed with out moving the hubs around the shafts and with no moving the tools. The SXCS Form has the bolts that connect the hubs for the split spacer installed in the ends from the couplings. The SXCST possess the bolts set up from within the spacer pointing outward towards the hubs.
Added Types