Shop 700 Series Keyed Couplings

Couplings are used to "couple" a pump and motor or engine together. One coupling half slips over the shaft of your engine or motor, one coupling half 

slips over the shaft of your pump, and the flexible insert goes in between to mate the two halves together. The higher the series of your coupling, the more robust the coupling. The close machining tolerances of these couplings assures vibration-free operation and easy, accurate alignment without need for special tools.

Magnaloy Coupling Hub part numbers may be specified using the following format: Start with letter “M” designating Magnaloy, followed by 3 digit 

Model Code (100, 200, etc.), then the specific 5 digit Bore/Key Code. All standard combinations of each series are shown below. 

Coupling Type:

Material:

Bore Sizes:

View the Catalog:

View the Collection:

Keyed

Lightweight Magnesium

3/8" to 4.75", Specials available upon request

Click HERE to view the Catalog

Click HERE to view the entire Keyed Coupling Collection



 Series 700 Keyed Flexible Insert Coupling Halves

Click on the model number in the chart below to view that item. 


Product SKU Model Coupling Series Coupling Type Bore Size Key Size Lead Time Price
M70011412S 700 1-7/16BX3/8K : Magnaloy 700 HUB 1-7/16" BORE X 3/8" KEY SPECIAL 700 Keyed 1.4375 (1-7/16") 0.375 (3/8") 1-3 Days $186.99
M70012816DSS45 700 1-7/8BX1/2K : Magnaloy 700 HUB 1-7/8" BORE X 1/2" KEY W/DBL SET SCREW AT 45DEG 700 Keyed 1.875 (1-7/8") 0.5 (1/2") 7-10 Days $164.99
M70012816DSS 700 1-7/8BX1/2K : Magnaloy 700 HUB 1-7/8" BORE X 1/2" KEY W/DBL SET SCREW 700 Keyed 1.875 (1-7/8") 0.5 (1/2") 7-10 Days $164.99
M70012816C 700 1-7/8BX1/2K : Magnaloy 700 HUB 1-7/8" BORE X 1/2" KEY W/CLAMP 700 Keyed 1.875 (1-7/8") 0.5 (1/2") 1-3 Days $196.99
M70012816 700 1-7/8BX1/2K : Magnaloy 700 HUB 1-7/8" BORE X 1/2" KEY 700 Keyed 1.875 (1-7/8") 0.5 (1/2") 1-3 Days $157.99
M70012814S 700 1-7/8BX7/16K : Magnaloy 700 HUB 1-7/8" BORE X 7/16" KEY SPECIAL 700 Keyed 1.875 (1-7/8") 0.4375 (7/16") 1-3 Days $186.99
M70010008S 700 1BX1/4K : Magnaloy 700 HUB 1" BORE X 1/4" KEY SPECIAL 700 Keyed 1" 0.25 (1/4") 1-3 Days $186.99
M70010006S 700 1BX3/16K : Magnaloy 700 HUB 1" BORE X 3/16" KEY SPECIAL 700 Keyed 1" 0.1875 (3/16") 1-3 Days $186.99
M70010012S 700 1BX3/8K : Magnaloy 700 HUB 1" BORE X 3/8" KEY SPECIAL 700 Keyed 1" 0.375 (3/8") 1-3 Days $177.99
M700100N 700 1BXNOK : Magnaloy 700 HUB 1" BORE X NO KEY SPECIAL 700 Keyed 1" NONE 1-3 Days $186.99
M70021616S 700 2-1/2BX1/2K : Magnaloy 700 HUB 2-1/2" BORE X 1/2" KEY SPECIAL 700 Keyed 2.5 (2-1/2") 0.5 (1/2") 1-3 Days $186.99
M70021624S 700 2-1/2BX3/4K : Magnaloy 700 HUB 2-1/2" BORE X 3/4" KEY SPECIAL 700 Keyed 2.5 (2-1/2") 0.75 (3/4") 1-3 Days $186.99
M70021620DSS 700 2-1/2BX5/8K : Magnaloy 700 HUB 2-1/2" BORE X 5/8" KEY W/DBL SET SCREW 700 Keyed 2.5 (2-1/2") 0.625 (5/8") 7-10 Days $164.99
M70021620C 700 2-1/2BX5/8K : Magnaloy 700 HUB 2-1/2" BORE X 5/8" KEY W/CLAMP 700 Keyed 2.5 (2-1/2") 0.625 (5/8") 1-3 Days $196.99
M70021620DSS45 700 2-1/2BX5/8K : Magnaloy 700 HUB 2-1/2" BORE X 5/8" KEY W/DBL SET SCREW 45 DEG 700 Keyed 2.5 (2-1/2") 0.625 (5/8") 7-10 Days $164.99
M70021620 700 2-1/2BX5/8K : Magnaloy 700 HUB 2-1/2" BORE X 5/8" KEY 700 Keyed 2.5 (2-1/2") 0.625 (5/8") 1-3 Days $157.99
M70020816DSS45 700 2-1/4BX1/2K : Magnaloy 700 HUB 2-1/4" BORE X 1/2" KEY W/DBL SET SCREW AT 45DEG 700 Keyed 2.25 (2-1/4") 0.5 (1/2") 7-10 Days $164.99
M70020816DSS 700 2-1/4BX1/2K : Magnaloy 700 HUB 2-1/4" BORE X 1/2" KEY W/DBL SET SCREW 700 Keyed 2.25 (2-1/4") 0.5 (1/2") 7-10 Days $164.99
M70020816C 700 2-1/4BX1/2K : Magnaloy 700 HUB 2-1/4" BORE X 1/2" KEY W/CLAMP 700 Keyed 2.25 (2-1/4") 0.5 (1/2") 1-3 Days $196.99
M70020816 700 2-1/4BX1/2K : Magnaloy 700 HUB 2-1/4" BORE X 1/2" KEY 700 Keyed 2.25 (2-1/4") 0.5 (1/2") 1-3 Days $157.99
M70020820SDSS45 700 2-1/4BX5/8K : Magnaloy 700 HUB 2-1/4" BORE X 5/8" KEY SPECIAL DBL SET SCREW AT 45DEG 700 Keyed 2.25 (2-1/4") 0.625 (5/8") 7-10 Days $192.99
M70020820S 700 2-1/4BX5/8K : Magnaloy 700 HUB 2-1/4" BORE X 5/8" KEY SPECIAL 700 Keyed 2.25 (2-1/4") 0.625 (5/8") 1-3 Days $186.99
M70020416DSS45 700 2-1/8BX1/2K : Magnaloy 700 HUB 2-1/8" BORE X 1/2" KEY W/DBL SET SCREW @ 45 700 Keyed 2.125 (2-1/8") 0.5 (1/2") 7-10 Days $164.99
M70020416DSS 700 2-1/8BX1/2K : Magnaloy 700 HUB 2-1/8" BORE X 1/2" KEY W/DBL SET SCREW 700 Keyed 2.125 (2-1/8") 0.5 (1/2") 7-10 Days $164.99
M70020416C 700 2-1/8BX1/2K : Magnaloy 700 HUB 2-1/8" BORE X 1/2" KEY W/CLAMP 700 Keyed 2.125 (2-1/8") 0.5 (1/2") 1-3 Days $197.99
M70020416 700 2-1/8BX1/2K : Magnaloy 700 HUB 2-1/8" BORE X 1/2" KEY 700 Keyed 2.125 (2-1/8") 0.5 (1/2") 1-3 Days $157.99
M70020424S 700 2-1/8BX3/4K : Magnaloy 700 HUB 2-1/8" BORE X 3/4" KEY SPECIAL 700 Keyed 2.125 (2-1/8") 0.75 (3/4") 1-3 Days $186.99
M70020420S 700 2-1/8BX5/8K : Magnaloy 700 HUB 2-1/8" BORE X 5/8" KEY SPECIAL 700 Keyed 2.125 (2-1/8") 0.625 (5/8") 1-3 Days $186.99
M70022220S 700 2-11/16BX5/8K : Magnaloy 700 HUB 2-11/16" BORE X 5/8" KEY SPECIAL 700 Keyed 2.6875 (2-11/16") 0.625 (5/8") 1-3 Days $186.99
M70020616SDSS 700 2-3/16BX1/2K : Magnaloy 700 HUB 2-3/16" BORE X 1/2" KEY SPECIAL W/DBL SET SCREW 700 Keyed 2.1875 (2-3/16") 0.5 (1/2") 7-10 Days $192.99
M70020616S 700 2-3/16BX1/2K : Magnaloy 700 HUB 2-3/16" BORE X 1/2" KEY SPECIAL 700 Keyed 2.1875 (2-3/16") 0.5 (1/2") 1-3 Days $186.99
M70022424S 700 2-3/4BX3/4K : Magnaloy 700 HUB 2-3/4" BORE X 3/4 KEY SPECIAL 700 Keyed 2.75 (2-3/4") 0.75 (3/4") 1-3 Days $186.99
M70022424SDSS45 700 2-3/4BX3/4K : Magnaloy 700 HUB 2-3/4" BORE X 3/4" KEY W/2 S.S.@45 DEG. 700 Keyed 2.75 (2-3/4") 0.75 (3/4") 7-10 Days $192.99
M70022420DSS 700 2-3/4BX5/8K : Magnaloy 700 HUB 2-3/4" BORE X 5/8" KEY W/DBL SET SCREW 700 Keyed 2.75 (2-3/4") 0.625 (5/8") 7-10 Days $164.99
M70022420C 700 2-3/4BX5/8K : Magnaloy 700 HUB 2-3/4" BORE X 5/8" KEY W/CLAMP 700 Keyed 2.75 (2-3/4") 0.625 (5/8") 1-3 Days $196.99
M70022420 700 2-3/4BX5/8K : Magnaloy 700 HUB 2-3/4" BORE X 5/8" KEY 700 Keyed 2.75 (2-3/4") 0.625 (5/8") 1-3 Days $157.99
M70021216S 700 2-3/8BX1/2K : Magnaloy 700 HUB 2-3/8" BORE X 1/2" KEY SPECIAL 700 Keyed 2.375 (2-3/8") 0.5 (1/2") 1-3 Days $186.99
M70021224S 700 2-3/8BX3/4K : Magnaloy 700 HUB 2-3/8" BORE X 3/4" KEY SPECIAL 700 Keyed 2.375 (2-3/8") 0.75 (3/4") 1-3 Days $186.99
M70021220DSS 700 2-3/8BX5/8K : Magnaloy 700 HUB 2-3/8" BORE X 5/8" KEY W/DBL SET SCREW 700 Keyed 2.375 (2-3/8") 0.625 (5/8") 7-10 Days $164.99
M70021220C 700 2-3/8BX5/8K : Magnaloy 700 HUB 2-3/8" BORE X 5/8" KEY W/CLAMP 700 Keyed 2.375 (2-3/8") 0.625 (5/8") 1-3 Days $196.99
M70021220DSS45 700 2-3/8BX5/8K : Magnaloy 700 HUB 2-3/8" BORE X 5/8" KEY W/DBL SET SCREW 45 DEGREE 700 Keyed 2.375 (2-3/8") 0.625 (5/8") 7-10 Days $164.99
M70021220 700 2-3/8BX5/8K : Magnaloy 700 HUB 2-3/8" BORE X 5/8" KEY 700 Keyed 2.375 (2-3/8") 0.625 (5/8") 1-3 Days $157.99
M70022016S 700 2-5/8BX1/2K : Magnaloy 700 HUB 2-5/8" BORE X 1/2" KEY SPECIAL 700 Keyed 2.625 (2-5/8") 0.5 (1/2") 1-3 Days $186.99
M70022024S 700 2-5/8BX3/4K : Magnaloy 700 HUB 2-5/8" BORE X 3/4 KEY SPECIAL 700 Keyed 2.625 (2-5/8") 0.75 (3/4") 1-3 Days $186.99
M70022020C 700 2-5/8BX5/8K : Magnaloy 700 HUB 2-5/8" BORE X 5/8" KEY CLAMP 700 Keyed 2.625 (2-5/8") 0.625 (5/8") 1-3 Days $196.99
M70022020DSS45 700 2-5/8BX5/8K : Magnaloy 700 HUB 2-5/8" BORE X 5/8" KEY W/DBL SET SCREW AT 45DEG 700 Keyed 2.625 (2-5/8") 0.625 (5/8") 7-10 Days $164.99
M70022020DSS 700 2-5/8BX5/8K : Magnaloy 700 HUB 2-5/8" BORE X 5/8" KEY W/DBL SET SCREW 700 Keyed 2.625 (2-5/8") 0.625 (5/8") 7-10 Days $164.99
M70022020 700 2-5/8BX5/8K : Magnaloy 700 HUB 2-5/8" BORE X 5/8 KEY 700 Keyed 2.625 (2-5/8") 0.625 (5/8") 1-3 Days $157.99
M70021416SDSS45 700 2-7/16BX1/2K : Magnaloy 700 HUB 2-7/16" BORE X 1/2" KEY SPECIAL W/DBL SET SCREW 45 700 Keyed 2.4375 (2-7/16") 0.5 (1/2") 7-10 Days $192.99
M70021420S 700 2-7/16BX5/8K : Magnaloy 700 HUB 2-7/16" BORE X 5/8" KEY SPECIAL 700 Keyed 2.4375 (2-7/16") 0.625 (5/8") 1-3 Days $186.99



Coupling Options

Double Set Screws or Clamp options are ideal for improved shaft retention. Just add a 'DSS' or 'C' at the end of the part numbers above to add those options.

Standard Style

Double Set Screw Style

Ideal for improved shaft 

retention of keyed shafts. 

Clamp Style

Ideal for improved shaft 

retention of splined shafts. 





Spare Parts

Our full range of flexible inserts permit custom design performance for a wide range of applications. All insert materials offer complete electrical insulation, as our factory design eliminates all metal-to-metal contact. Which Coupling Insert you select will vary based on the application, but the series of your Coupling Insert must match the series of the Coupling Halves. For example, a 200 Series Coupling must use a 200 Series Coupling Insert.

Sale Off
700H : Magnaloy 770 Insert, 55D, Hytrel, M770H5
$91.00$70.99
Sale Off
700V : Magnaloy 770 Insert, 80A, Viton, M770V8
$497.00$382.99


Don't see what you need? Give us a call! Special combinations may be available upon request. 
Want to view all keyed coupling options? Click HERE for our full collection.