January 25, 2021

Industrial SU Type
The SU Style coupling includes a single flex plane with two hubs and a single disc pack. It’s ideal for angular and axial misalignment only. Two SU couplings are sometimes mixed by using a shaft
to make a floating shaft coupling. The shaft could be hollow for extended light weight floating shaft couplings.
Industrial SX Variety
This is the common coupling style that includes two hubs, a stock length spacer built to meet field typical lengths, and two unitized disc packs. The coupling has two flex planes, one at each disc pack, permitting this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is available in 6 and 8 bolt patterns and bore sizes as much as 13 inches (330mm) over the greatest size. Custom spacer lengths might be manufactured to meet exclusive shaft separations needed for distinct applications. The SX coupling may be fitted with overload bushings to protect the disc packs in above torque disorders and might act as an anti-flail device. SX couplings are assembled at the time of installation on the equipment wherever the coupling might be in support.
Industrial DI Variety
The DI Type coupling includes a “Drop-In” spacer assembly that is assembled at the factory. The coupling consists of two hubs and a spacer assembly comprising on the spacer, two unitized disc packs, and two guard rings. The disc packs are bolted to the spacer and guard rings on the factory making use of the torque values suggested by Lovejoy for the disc pack bolts. Using the hubs mounted around the shafts, the entire disc pack assembly could be “Dropped In” spot in between the two hubs. The hubs are piloted to guarantee right centering from the spacer assembly. This piloting serves as an anti-flail characteristic and aids during the coupling’s capability to meet the stability standards mandated by API. This type coupling is built to meet the balance and anti-flail specifications specified in API-610.
Oversized, or Jumbo, hubs are available for use with the DI Sort coupling to allow for more substantial bore sizes on most DI coupling sizes. This allows to the utilization of smaller sized DI couplings in applications wherever a smaller size coupling can nevertheless accommodate the application torque.
Industrial SXC Form
The SXC Style is the close coupled variation on the SX Style coupling. The SXC is similar to the SX coupling in the disc packs are connected once the coupling is put in. Within the near coupled units, the hubs are turned inward and are mounted inside the spacer. Note that with all the hubs inside the spacer, the maximum bore allowed during the hub will be decreased. The SXC couplings can be employed with 1 or each hubs turned outward to allow the coupling to accommodate unique shaft separations.
Industrial SXCS and SXCST Types
The SXCS and SXCST Styles have split spacers plus the disc packs may be serviced or removed devoid of moving the hubs around the shafts and without having moving the tools. The SXCS Style has the bolts that connect the hubs towards the split spacer set up in the ends of the couplings. The SXCST possess the bolts put in from within the spacer pointing outward in the direction of the hubs.
Additional Types