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CMR series
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Catalog excerpts

CMR series - 1

THOMAS® FLEXIBLE DISC COUPLINGS FLYWHEEL ADAPTER TYPE CMR CMR couplings are used in heavy duty slow to medium speed applications, where high starting torque, shock loads, torque reversals or continuous alternating torque is present. The open lug type center member provides ample clearance for assembly while minimizing the space required for coupling installation. The CMR couplings are designed with a flywheel adapter plate which bolts directly to the flywheel of an engine or compressor. The adapters are made to fit accurately into the recess in the flywheel, and external strains on the crankshaft resulting from the misalignment of the driven equipment is minimized. Construction Hubs: Cast Alloy Iron Center Section: Sizes 162 – 750 are Cast Alloy Iron, Sizes 800 and above are Cast Steel Bolts: Alloy Steel Disc Packs: Tomaloy Tpack™ (225-750 Size) Coatings Available: Black Oxide, Zinc, Cadmium Other materials such as Stainless Steel, Monel and Inconel are available; please consult Rexnord Industries, Inc. Misalignment: 1/3° per disc pack **INCREASED TORQUE RATINGS** CMR coupling between engine and reciprocating compressor. FLYWHEEL ADAPTER INFORMATION Adapters can be furnished to accommodate virtually any flange design. Where possible, the user should select dimensions from the tables below, as these represent industry standards and thus are the most economical selection. Note that most sizes are available either with SAE bolting or Thomas heavy duty bolting. Available Adapters Coupling Standard Siz e Adapters Available in Shaded Siz es (inch) A Adapter 8.500 9.500 10.375 12.375 13.875 16.000 18.375 20.375 22.500 26.500 28.875 Diameter Tolerance 8.498 9.498 10.373 12.373 13.873 15.998 18.373 20.372 22.497 26.497 28.872 (in.) 162 8.5 200 9.5 225 10.38 AV 262 12.38 AIL AB 312 13.88 LE 350 16 IN TH 375 18.38 ES ES 425 20.38 IZE S 450 22.5 500 26.5 550 28.88 600 700 750 800 850 Siz es 925 to 1550 – Adapting dimensions on request. Note: Dimensions subject to change. Certified dimensions of ordered material furnished on request.

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CMR series - 2

THOMAS® FLEXIBLE DISC COUPLINGS FLYWHEEL ADAPTER TYPE CMR Note: Dimensions subject to change. Certified dimensions of ordered material furnished on request.

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