Optimized coupling design delivering low weight and high torque density for general purpose and critical ANSI/API process pump, fan, and compressor drive applications. The modularity of XTSR platform extends across various models to offer broad application coverage:
– XTSR52: Non-adapter style spacer model enhances legacy Series 52
– XTSR71: Adapter-style spacer model enhances legacy Series 71
– XTSRLS: Long span / floating shaft
– XTSRS: Single flexing
– XTSRGA: Long span gear coupling replacement

Thomas XTSR Disc Couplings

Rexnord XTSR52 Thomas Disc Couplings

Non-adapter style spacer coupling consists of just three main components (two hubs and center spacer), translating into a low weight, high torque design that is well-suited for general purpose industrial applications. Typical applications include motor and turbine driven pumps, compressors, fans, synchronized rollers, wire feeders and blowers.

Thomas XTSR Disc Couplings

Rexnord XTSR71 Thomas Disc Couplings

Adapter-style spacer design enables quick “drop in” installation and removal without moving connected equipment. Balanced to AGMA Class 9 and compliant to API 610 as manufactured, the XTSR71 is ideally suited for critical process pumps, fans, and compressor drive applications. The XTSR71 coupling also meets API 671 when specified.

Thomas XTSR Disc Couplings

Rexnord XTSRGA Thomas Disc Couplings

Directly replaces lubricated gear couplings commonly found in many pulp and paper applications with long spans between connected equipment.  The XTSRGA coupling bolts up to the existing AGMA Standard rigid gear coupling hubs, replacing the floating shaft assembly.

Thomas XTSR Disc Couplings

Rexnord XTSRLS Thomas Disc Couplings

Designed for long span applications where shaft spacing exceeds maximum length of standard fully machined spacer designs (XTSR52 / XTSR71).

Thomas XTSR Disc Couplings

Rexnord XTSRS Thomas Disc Couplings

The single flex element design accommodates angular misalignment only. Typically used in three-bearing applications where radial load is supported by the coupling, such as single bearing generators.