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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > S-Flex Endurance® Couplings > J Type Flanges with Keyway - Metric Bores > Part Number 68514441504  
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Part Number 68514441504, J Type Flanges with Keyway - Metric Bores



  • The J Type flanges in sizes 3J and 4J are made from die cast of high strength zinc alloy (tensile strength of 41,000 psi) and are furnished bore-to-size.
  • Size 5J is provided in either zinc alloy or cast iron depending on the bore size.
  • Size 6J is made from cast iron.
  • J flanges are compatible with EPDM or Neoprene sleeves.
  • Each flange has a keyway and two set screws (one set screw over the key and one at 90° to the keyway).
  • The J Type coupling consists of two flanges and one sleeve.




Unit of Measure: Imperial Metric Both

Notes  · Specifications  · Dimensional Data  · Performance Data

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 

  • Spacing between shafts should be greater than 1/8 inch and less than OAL minus the sum of the two bore dimensions.


Specifications

Description 

4J-FLNG-20MMH7-6X2.8MMKW

Coupling Size

4J

Type

Coupling Flange

Material

Zinc Die Cast

Color

Gray

Bore Type

Finished Bore

Coupling Type

S-Flex

Weight

0.41 lb


Dimensional Data

Bore Size

20.00 mm

Thread (Dimension T)

1/4-20

Keyway Size (W x D)

6 x 2.8 mm

Outside Diameter

2.460 in
62.48
mm

Max. Bore

1.000 in

Dimension FL

0.440 in
11.18
mm

Dimension HD

1.630 in
41.40
mm

Dimension L

0.880 in
22.35
mm

Dimension P

0.440 in
11.18
mm

Dimension SL

0.250 in
6.35
mm

Cubic inches

5.32541 in³


Performance Data

Nominal Torque (with EPDM Sleeve)

120 in·lb
13.56
N·m

Max. Speed

7600.00 rpm

Torsional Stiffness

458.00 in·lb/rad

Rated HP at 100 rpm

0.20 hp

Rated HP at 1,200 rpm

2.30 hp

Rated HP at 1,800 rpm

3.40 hp

Rated HP at 3,600 rpm

6.90 hp


 MORE IMAGES 

·  S-Flex Coupling Misalignment

·  Dimensional Drawing - S-Flex J Type Coupling


 DOWNLOADS 

S-Flex Endurance Catalog

S-Flex Endurance Installation Instructions
(PDF, 0KB)

S-Flex Endurance Installation Video


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