• S flanges are made of high strength cast iron and are bored-to- size for a slip fit on standard shafts.
  • S flanges are easy to install, are readily available from stock in a wide range of popular bore sizes, and are supplied with two set screws at 90°.
  • The S Type coupling consists of two flanges and one sleeve.
Unit of Measure

Notes

Disclaimer

 Lovejoy: CAD Models are accurate envelope dimensions only. Features such as bore size and keyway are not rendered or are only representative. Contact Lovejoy Technical Support or refer to product catalogs for details.

Notes 
  • All standard finished bore keyway flanges have 2 set screws at 90°.
  • Sizes 13, 14 and 16 RSB flanges are suitable for reboring and have two set screws at 90°.
  • Sizes 5-12 RSB flanges have no set screws.
  • Metric Bore / Keyway per DIN specifications.
  • Spacing between shafts should be greater than 1/8 inch and less than OAL minus the sum of the two bore dimensions.

Specifications

Description 

 7S-FLNG-25MMH7-8X3.3MMKW

Coupling Size

 7S

Type

 Coupling Flange

Material

 Cast Iron

Color

 Gray

Bore Type

 Finished Bore

Coupling Type

 S-Flex

Weight

 2.50 lb

Dimensional Data

Bore Size

 25.00 mm

Thread (Dimension T)

 3/8-16

Keyway Size (W x D)

 8 X 3.3 mm

Outside Diameter

 4.625 in117.48 mm

Max. Bore (Dimension ID)

 1.625 in

Dimension FL

 0.780 in19.81 mm

Dimension HD

 2.810 in71.37 mm

Dimension L

 1.840 in46.74 mm

Dimension P

 0.690 in17.53 mm

Dimension SL

 0.350 in8.89 mm

Cubic inches

 39.35875 in³

Performance Data

Nominal Torque (with EPDM Sleeve)

 725 in·lb81.91 N·m

Max. Speed

 5250.00 rpm

Torsional Stiffness

 2769.00 in·lb/rad

Rated HP at 100 rpm

 1.20 hp

Rated HP at 1,200 rpm

 14.00 hp

Rated HP at 1,800 rpm

 21.00 hp

Rated HP at 3,600 rpm

 41.00 hp