Thomas Legacy Series Spacer Couplings

Rexnord S52 Thomas Disc Couplings

Non-adapter style spacer model consists of just three primary components (two hubs and center spacer), delivering a low-weight and economical coupling solution.

Thomas Series 54 Close-Coupled Couplings

Rexnord S54RD Thomas Disc Couplings

Reduced diameter design with axially-split center spacer that enables replacement of disc packs without moving hubs or connected equipment.

Thomas Series 54 Close-Coupled Couplings

Rexnord S54RDG Thomas Disc Couplings

Reduced diameter design with axially-split center spacer that enables replacement of disc packs without moving hubs or connected equipment. The piloted adapter feature specific to Series 54RDG permits high-speed potential at higher torque-density.

Thomas Legacy Series Spacer Couplings

Rexnord S71 Thomas Disc Couplings

Adapter-style spacer model is characterized by unitized center assembly that “drops” in/out for fast installation or removal. Series 71 encompasses original 4- and 6-bolt designs, and utilizes scalloped disc profile for reduced stiffness and optimal torque transmission.

Thomas Legacy Series Spacer Couplings

Rexnord S71-8 Thomas Disc Couplings

Adapter-style spacer model is characterized by unitized center assembly that “drops” in/out for fast installation or removal. Series 71-8 features 8-bolt design for higher torque capacities compared to 4- and 6-bolt designs.

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.

  • Pipeline: steam turbine to generator, 160,858 hp (120,000 kW) at 3,000 rpm
  • Petrochemical refinery: steam turbine to compressor, 69,705 hp (52,000 kW) at 3,021 rpm
  • FPSO ship: steam turbine to compressor, 10,295 hp (7,680 kW) at 12,075 rpm

Grid Couplings

Steelflex

Falk Steelflex Grid Couplings are available in the widest range of sizes and accommodate the highest torque load of 8,250,000 lb-in (932,250 Nm). Offering a comprehensive set of options ensures the Falk Steelflex Coupling is the right product for an assortment of our customers’ applications.

Rexnord Euroflex

Test bench applications

  • Turbine to gearbox: 670 hp (500 kW) at 50,000 rpm with an overall length of 10.40 inches (264 mm)
  • Turbine to gearbox: 536 hp (400 kW) at 45,000 rpm with an overall length of 4.72 inches (120 mm)
  • Race car: 2,681 hp (2,000 kW) at 28,000 rpm; combination of titanium, aluminum and alloy steel to meet the weight requirements of 9.25 pounds (4.2 kg), over 50 percent lighter than a traditional test bench coupling.

Locking Assemblies & Shrink Discs

Tollok Rigid Couplings

Tollok is now part of Rexnord. Tollok manufactures highly engineered shaft locking devices for the power generation and process industries, as well as general industrial applications. Our products are used to secure rotating shafts, manage torque transmission, and counteract shaft bending and vibration. With more than 40 years of application experience, the company’s product technology and expertise help customers manage process variability and maximize uptime.

Elastomeric Tire Couplings

Viva

Rexnord Viva Elastomeric Tire Couplings feature a design based on the proven Rexnord Omega Couplings. Rexnord Viva couplings are non-lubricated, material-flexing split-in-half tire couplings that have a greater torque transmission with a smaller coupling. This all-purpose coupling has excellent vibration damping capability helping to prolong the life of connected equipment and has a metric design for global users.