The SX Type is the standard coupling type that includes two hubs, a stock length spacer designed to meet industry standard lengths, and two unitized disc packs. The coupling has two flex planes, one at each disc pack, allowing this coupling to accommodate parallel, angular, and axial misalignment with specified limits. The coupling is available in 4, 6, and 8 bolt designs and bore sizes up to 13 inches (330mm) on the largest size. Custom spacer lengths can be manufactured to meet special shaft separations required for specific applications. The SX coupling can be fitted with overload bushings to protect the disc packs in over torque conditions and can act as an anti-flail device. SX couplings are assembled at the time of installation on the equipment where the coupling will be in service.
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Item #


Keyway Sizes (W x D)

Dimension FD

Overall Length

Nominal Torque

69790494074 N/A SX110-6 CPLG RSBXRSB BSE=5.5 N/A No Keyway N/A 4.330 in110.00 mm N/A 9.440 in189.00 mm N/A 5100 in·lb
69790493146 N/A SX132-6 CPLG RSBXRSB BSE=4.25 N/A No Keyway N/A 5.200 in132.00 mm N/A 8.970 in132.00 mm N/A 9700 in·lb
69790492501 N/A SX158-6 CPLG RSBXRSB BSE=4.875 N/A No Keyway N/A 6.220 in158.00 mm N/A 10.400 in264.00 mm N/A 17700 in·lb
69790499876 N/A SX158-6 CPLG RSBXRSB BSE=7.50 N/A No Keyway N/A 6.220 in158.00 mm N/A 13.020 in264.00 mm N/A 17700 in·lb
69790499526 N/A SX228-6 CPLG RSBXRSB BSE=9-5/8 N/A No Keyway N/A 8.980 in228.00 mm N/A 17.510 in375.00 mm N/A 62000.00 in·lb
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