Thomas Legacy Series Spacer Couplings

Legacy Series Spacer Couplings

The Thomas Legacy Series Spacer Couplings are an industry-proven solution for general purpose and critical ANSI/API process pump & compressor drive applications.

Thomas Series 52 and Series 71 / 71-8 spacer couplings offer unparalleled track record of performance and reliability. Recognized as the benchmarks in industry, the Thomas Legacy Series spacer couplings are trusted solutions for critical ANSI/API process pump, fan & blower, and compressor drive applications. 

Products

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. Design modifications may be made to further reduce the coupling weight, making it an economic alternative to high performance disc and diaphragm couplings.

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 requirements. The Series 71 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.  The hubs are piloted fit to the factory assembled center member to enable easy assembly of components for better dynamic balance characteristics.  The center assembly ‘drops out’ for fast installation or removal without special tools.  4 & 6 bolt designs feature stainless steel disc packs with alternate materials available. The 4-bolt design is available in 2 sizes while the 6-Bolt design is available in 9 and 12 sizes respectively. The Thomas S71 spacer type disc coupling is engineered to accommodate maximum continuous torque loads up to 91,700 lb-in and shaft diameters up to 7.810 inches for the 750 .

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.. The hubs are piloted fit to the factory assembled center member to enable easy assembly of components for better dynamic balance characteristics.  The center assembly ‘drops out’ for fast installation or removal without special tools.  The 8-bolt design feature a stainless steel T-pack with alternate materials available The 8-Bolt design is available in 12 sizes. The Thomas S71-8 spacer type disc coupling is engineered to accommodate maximum continuous torque loads up to 838,800 lb-in and shaft diameters up to 10.812 inches.

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