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DL00251 RND

Coupling Size: 550; Coupling Style: Spacer; Coupling Type: Flexible Disc; Horsepower [max]: 7,856 hp; Speed [max]: 1,800 rpm; Continuous Torque Rating [max]: 275,055 in lb; Hub Straight Bore Diameter (Hub 1): 0.0000 in; Distance Between Shaft Ends: 9.8800
Manufacturer: Rexnord
Manufacturer part number: DL00251
Availability: Ships in 3-5 days.
Estimated dates are contingent upon manufacturer stock.
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Product Details

Brand Name

Rexnord Thomas®

Description

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 are minimized.

Specifications

Adapter 1 Length:0.880 in
Adapter 1 Type:Flywheel
Adapter 2 Type:Light Duty
Bolt Circle Diameter Adapter 1:17.250 in
Center Member Material:Cast Alloy Iron
Continuous Torque Rating Max:275,055 in lb
Coupling Coating:Light oil
Coupling Size:550
Coupling Style:Spacer
Coupling Type:Flexible Disc
Disc Pack Material:Tomaloy
Distance Between Shaft Ends:9.8800 in
Hardware Coating:Light oil
Hardware Material:Alloy Steel
Horsepower:7,856 hp
Hub Barrel Outside Diameter Hub 1:9.440 in
Hub Bore Fit Hub 1:Rough Bore
Hub Length Hub 1:5.500 in
Hub Material Hub 1:Cast Alloy Iron
Hub Straight Bore Diameter Hub 1 Nom:0.0000 in
Hub Style Hub 1:Standard
Hub Style Hub 2:Adapter
Keyway Depth Hub 1:0.0000 in
Keyway Fit Hub 1:None
Keyway Width Hub 1:0.0000 in
Major Coupling Outside Diameter:15.0000 in
Model:550
Moment of Inertia:7,700.00 lb-in2
Number of Bolts Adapter 1:8
Number of Keyways Hub 1:0
Number of Setscrews Hub 1:0
Operational Misalignment Capacity (Angular) [Max]:0.33 °
Operational Misalignment Capacity (Axial) [Max]:0.092 in
Operational Misalignment Capacity (Parallel) [Max]:0.037 in
Outside Diameter Adapter 1:18.375 in
Overall Coupling Length Nom:15.380 in
Peak Torque Rating:330,066 in lb
Speed Max:1,800 rpm