Rexnord G3CMR450 is a 450.CMR Thomas Disc Coupling complete unit. This all-metal flexible disc coupling uses laminated stainless-steel disc packs to transmit torque while accommodating misalignment. The coupling is supplied with no bore (NB) and standard duty (SD) configuration.

The Rexnord Thomas CMR 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. The open lug type center member provides ample clearance for assembly while minimizing the space required for coupling installations. The CMR coupling is available with a variety of coatings as well as compatible with a range of hub sizes. 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. CMR couplings are compatible with a range of hub sizes and available in 21 sizes ranging from 162 through 1550. The Thomas CMR Coupling is engineered to accomodate torque loads up to 3,124,000 lb-in and shaft diameters up to 16.0 inches.