Disc Coupling Overview

Industrial SU Form
The SU Form coupling includes a single flex plane with two hubs in addition to a single disc pack. It’s suitable for angular and axial misalignment only. Two SU couplings are frequently mixed which has a shaft
to create a floating shaft coupling. The shaft can be hollow for extended light fat floating shaft couplings.
Industrial SX Sort
That is the conventional coupling type that incorporates two hubs, a stock length spacer made to meet market normal lengths, and two unitized disc packs. The coupling has two flex planes, 1 at each and every disc pack, allowing this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is available in 6 and eight bolt styles and bore sizes up to 13 inches (330mm) within the biggest dimension. Custom spacer lengths is often manufactured to meet distinctive shaft separations essential for distinct applications. The SX coupling could be fitted with overload bushings to safeguard the disc packs in above torque situations and might act as an anti-flail gadget. SX couplings are assembled on the time of set up around the equipment in which the coupling are going to be in service.
Industrial DI Sort
The DI Type coupling features a “Drop-In” spacer assembly that’s assembled in the factory. The coupling includes two hubs plus 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 on the factory working with the torque values recommended by Lovejoy to the disc pack bolts. Together with the hubs mounted on the shafts, the entire disc pack assembly may be “Dropped In” location amongst the two hubs. The hubs are piloted to ensure correct centering in the spacer assembly. This piloting serves as an anti-flail function and aids during the coupling’s capability to meet the stability specifications mandated by API. This fashion coupling is developed to meet the stability and anti-flail demands specified in API-610.
Oversized, or Jumbo, hubs can be found for use together with the DI Form coupling to permit for greater bore sizes on most DI coupling sizes. This enables to the use of smaller DI couplings in applications exactly where a smaller sized dimension coupling can even now accommodate the application torque.
Industrial SXC Variety
The SXC Type may be the close coupled variation of your SX Variety coupling. The SXC is just like the SX coupling in that the disc packs are connected once the coupling is put in. Within the near coupled units, the hubs are turned inward and therefore are mounted within the spacer. Note that using the hubs within the spacer, the maximum bore allowed from the hub will likely be decreased. The SXC couplings is often utilised with a single or both hubs turned outward to permit the coupling to accommodate unique shaft separations.
Industrial SXCS and SXCST Forms
The SXCS and SXCST Types have split spacers as well as disc packs could be serviced or eliminated with out moving the hubs on the shafts and without moving the gear. The SXCS Variety has the bolts that connect the hubs to your split spacer set up from the ends from the couplings. The SXCST possess the bolts set up from inside the spacer pointing outward towards the hubs.
Supplemental Types


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