Sure-Flex Plus® Coupling

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6S x 1-3/8 in. BTS Flange, High Strength Cast Iron Material

Model: 6S138

Our new Sure-Flex Plus® EPDM and Neoprene sleeves are best-in-class for coupling performance and value. Their 4-way flexing action absorbs virtually all types of shock, misalignment, and end float. With Sure-Flex couplings, the need for lubrication and maintenance is eliminated.

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Specifications

Product Family: Sure-Flex Type S, BTS Flange
Coupling Size: 6
Material Type: High Strength Cast Iron
Bore Size: 1 3/8"
Max RPM: 6000
Setscrew Length: 3/8 in
Outside Diameter (D): 4 in
SF Flange Length (T): 25/32 in
SF Hub Diameter (H): 2 1/2 in
Length Through Bore (C): 1 5/8 in
Set Screw Distance (S): 5/16 in
SF Hub Length (E): 17/32 in
Bore Tolerance: +.0005 to +.0015 in
Setscrew Size, Location: 5/16-18 UNC, One over KS and @ 90 Degrees
Setscrew Torque Requirement: 13 in-lb
Parallel Misalignment [Max]: 0.015 (in) with EPDM/Neoprene Sleeves and 0.010 (in) with Hytrel Sleeves
Angular Gap Misalignment [Max]: 0.070 (in) with EPDM/Neoprene Sleeves and 0.016 (in) with Hytrel Sleeves
Angular Misalignment [Max]: 1° with EPDM/Neoprene Sleeves and 1/4° with Hytrel Sleeves
Component WR²: 0.0276 lbs ft²
Bore Tolerance: +.0005 to +.0015 in
Torque Rate: 585 (in-lbs) with EPDM or Neoprene sleeve; 1,800 (in-lbs) with Hytrel sleeve
Keyseat Size: 5/16 in x 5/32 in
Torque: 585 in-lb with EPDM or Neoprene sleeve, 1,800 in-lb with Hytrel sleeve
Component Weight: 1.9 lbs
Component Weight: 1 kg
California Proposition 65: WARNING: Cancer- www.p65warnings.ca.gov

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