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  • Specifically designed for the pump industry, this coupling accommodates industry standard as well as special pump/motor separation
  • This shaft separation facilitates easy pump repair of pump packing, bearings, and seals without disturbing pump or motor mounting and alignment
  • The SC Type coupling consists of two flanges, a sleeve and two shaft hubs
Quick Coupling Removal
  • The center drop out section consists of two flanges and the flexible sleeve
  • The flange is bolted to the shaft hub with four hex head cap screws
  • The center drop out section can be removed by removing the hex head cap screws
  • Flats on each hub provides a convenient grip for a wrench in order to facilitate loosening of the screws and, if desired, turning of the pump/motor shafts
  • Once the hub is removed from the pump shaft, maintenance on the pump can be done without disturbing equipment alignment
Unit of Measure

Specifications

Description 

12SCHS-SPCR HUB-1-7/8-NKW

Hub #

12SCHS

Coupling Type

Coupling Hubs

Material

Cast Iron

Color

Gray

Bore Type

Finished Bore

# of Cap Screws Required

4

Coupling Type

S-Flex

Weight

14.10 lb

Dimensional Data

Bore Size 

1 7/8 in

Thread (Dimension T)

5/8-11

Keyway Size (W x D)

No Keyway

Outside Diameter

5.750 in146.05 mm

Max. Bore

2.500 in

Dimension L

2.530 in64.26 mm

Dimension SL

1.120 in28.45 mm

Cap Screw Required Size

5/8 - 3-1/2

Cubic inches

83.64813 in³

Performance Data

Nominal Torque (with EPDM Sleeve)

7200 in·lb

Max. Speed

2800.00 rpm

Torsional Stiffness

27500.00 in·lb/rad

Rated HP at 100 rpm

11.40 hp

Rated HP at 1,200 rpm

137.00 hp

Rated HP at 1,800 rpm

206.00 hp

Notes

Notes 

  • SC = Standard Length
  • SCHS = Short Length