Thomas Disc Coupling

Thomas Disc Couplings and Flexible Disc Packs are engineered for infinite life and optimized for motor, engine and turbine-driven applications. Rexnord's experience and dedication to conservative design standards ensure customers the maximum reliability on the most critical power train systems. Our engineers also work with customers to accommodate unique system operating characteristics.

Benefits


  • Allows for visual inspection and easy replacement of disc packs and center members

  • Zero backlash, low restoring forces, electrically insulated designs

  • More than 25 sizes

  • 18 engagement, disconnect, brake and shear pin options

  • Up to 15.5 inches (394 mm) bore capacity

  • Up to 3,390,000 in-lb (383,019 Nm) torque capacity

  • Up to 20,000 rpm

  • Meets API 671 or API 610 specifications


Ranges

Rexnord AMR Thomas Disc Couplings


The Rexnord Thomas AMR coupling is ideal for heavy-duty, slow to medium speed applications, where high-starting torque, shock loads, torque reversals or continuous alternating torques are present. Typical applications include motor and turbine driven pumps, compressors, fans, synchronized rollers, wire feeders and blowers.


Rexnord CMR Thomas Disc Couplings


Typical applications include engine and motor driven reciprocating compressors, Motor and turbine driven pumps, fans, synchronized rollers, wire feeders, blowers or any application driven through a flywheel adapter.


Rexnord C-Style Miniatures Thomas Disc Couplings


The Rexnord Thomas Miniature Couplings are a range of high precision couplings for low horsepower applications. The clamping hubs assure a positive fit on the shafts with no loose parts to handle during installation.


Rexnord DBZ Thomas Disc Couplings


The Rexnord Thomas DBZ disc coupling is a legacy general purpose high-speed, high-torque coupling. Typical applications include mixers, compressors, agitators, blowers& fans, centrifugal pumps and conveyors.


Rexnord DBZ-A Thomas Disc Couplings


The Rexnord Thomas DBZ-A disc coupling is a legacy general purpose high-speed, high-torque coupling. Typical applications include mixers, compressors, agitators, blowers& fans, centrifugal pumps and conveyors.


Rexnord DBZ-B Thomas Disc Couplings


The Rexnord Thomas DBZ-B disc coupling is a legacy general purpose high-speed, high-torque coupling. Typical applications include mixers, compressors, agitators, blowers& fans, centrifugal pumps and conveyors.


Rexnord DBZ-C Thomas Disc Couplings


The Rexnord Thomas DBZ-C disc coupling is a legacy general purpose high-speed, high-torque coupling. Typical applications include mixers, compressors, agitators, blowers& fans, centrifugal pumps and conveyors.


Rexnord S52 Thomas Disc Couplings


The Rexnord Thomas Series 52 couplings are all-purpose high-speed, high-torque couplings used where minimum coupling weight is desirable. They are commonly used on motor and turbine driven pumps, compressors and fans


Rexnord S54RD Thomas Disc Couplings


The Rexnord Thomas Series 54RD couplings are specifically designed as replacements for close-coupled gear and grid couplings, and where overall shaft-to-shaft spacing is minimal. Materials of construction are identical to the Series 52. Stainless steel disc packs are supplied as standard. To reduce maintenance costs, the Series 54RD is furnished with an axially split center member. This design permits the removal of the disc packs without moving the connected equipment.


Rexnord S54RDG Thomas Disc Couplings


The Rexnord Thomas Series 54RDG couplings are reduced diameter gear and grid replacement couplings. Applications include any situation where the overall shaft-to-shaft spacing is minimal.


Rexnord S71 Thomas Disc Couplings


The Rexnord Thomas S71 spacer type disc coupling is a general purpose high-speed, high-torque coupling designed applications requiring spacer-type couplings such as ANSI, API and other similar process pumps. Series 71 couplings are most commonly used on motor, turbine and gear driven pumps, compressors and blowers and when specified can meet all API 610 or API 671


Rexnord S71-8 Thomas Disc Couplings


The Rexnord Thomas S71-8 spacer type disc coupling is a general purpose high-speed, high-torque coupling designed applications requiring spacer-type couplings such as ANSI, API and other similar process pumps. Series 71-8 couplings are most commonly used on motor, turbine and gear driven pumps, compressors and blowers and when specified can meet all API 610 or API 671 requirements. The Series 71-8 is characterized by a simple three-piece design with a unitized center member assembly and two piloted hubs, available as Black Oxide, Zinc, Cadmium or Manganese Phosphate coated..


Rexnord XTSR52 Thomas Disc Couplings


The Rexnord Thomas XTSR52 spacer disc coupling is a general purpose high-speed, high-torque coupling used where minimum coupling weight is desirable. The Thomas XTSR52 couplings are API 610 and ISO 14691 compliant when specified as well as ATEX II 2GD c T6 certified. Typical applications include motor and turbine driven pumps, compressors, fans, synchronized rollers, wire feeders and blowers. XTSR52 couplings are compatible with one, two or three sizes larger hubs and available in 21 sizes ranging from 726 through 5258.


Rexnord XTSR71 Thomas Disc Couplings


The Rexnord Thomas XTSR71 spacer disc coupling is a high performance 3-piece design enabling compact packaging for critical operating conditions including API applications. The Thomas XTSR71 couplings are API 610, ISO 14691, and API 671 (ISO 10441) compliant when specified as well as ATEX II 2GD c T6 certified. Typical applications include motor and turbine driven pumps, compressors, fans, synchronized rollers, wire feeders and blowers. XTSR71 couplings are compatible with one or two sizes larger hubs and available in 21 sizes ranging from 726 through 5258