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
M70011616S 700 1-1/2BX1/2K : Magnaloy 700 HUB 1-1/2" BORE X 1/2" KEY SPECIAL 700 Keyed 1.5 (1-1/2") 0.5 (1/2") 1-3 Days $186.99
M70011608S 700 1-1/2BX1/4K : Magnaloy 700 HUB 1-1/2" BORE X 1/4" KEY SPECIAL 700 Keyed 1.5 (1-1/2") 0.25 (1/4") 1-3 Days $186.99
M70011612-NYLOC 700 1-1/2BX3/8K : Magnaloy 700 HUB 1-1/2" BORE X 3/8" KEY W/ LIQUID NYLOC ON THE SET SCREW 700 Keyed 1.5 (1-1/2") 0.375 (3/8") 1-3 Days $159.99
M70011612DSS45 700 1-1/2BX3/8K : Magnaloy 700 HUB 1-1/2" BORE X 3/8" KEY DBL SET SCREW AT 45DEG 700 Keyed 1.5 (1-1/2") 0.375 (3/8") 7-10 Days $164.99
M70011612DSS 700 1-1/2BX3/8K : Magnaloy 700 HUB 1-1/2" BORE X 3/8" KEY DBL SET SCREW 700 Keyed 1.5 (1-1/2") 0.375 (3/8") 7-10 Days $164.99
M70011612 700 1-1/2BX3/8K : Magnaloy 700 HUB 1-1/2" BORE X 3/8" KEY 700 Keyed 1.5 (1-1/2") 0.375 (3/8") 1-3 Days $157.99
M70011610S 700 1-1/2BX5/16K : Magnaloy 700 HUB 1-1/2" BORE X 5/16" KEY SPECIAL 700 Keyed 1.5 (1-1/2") 0.3125 (5/16") 1-3 Days $186.99
M70011610DSS45 700 1-1/2BX5/16KE : Magnaloy 700 HUB 1-1/2" BORE X 5/16" KEY W/DBL SET SCREW @ 45DEGE 700 Keyed 1.5 (1-1/2") 0.3125 (5/16") 7-10 Days $164.99
M70011614S 700 1-1/2BX7/16K : Magnaloy 700 HUB 1-1/2" BORE X 7/16" KEY SPECIAL 700 Keyed 1.5 (1-1/2") 0.4375 (7/16") 1-3 Days $186.99
M700116N 700 1-1/2BXNOK : Magnaloy 700 HUB 1-1/2" BORE X NO KEY SPECIAL. 700 Keyed 1.5 (1-1/2") NONE 1-3 Days $186.99
M70010816S 700 1-1/4BX1/2K : Magnaloy 700 HUB 1-1/4" BORE X 1/2" KEY SPECIAL 700 Keyed 1.25 (1-1/4") 0.5 (1/2") 1-3 Days $186.99
M70010808SC 700 1-1/4BX1/4K : Magnaloy 700 HUB 1-1/4" BORE X 1/4" KEY SPECIAL W/CLAMP 700 Keyed 1.25 (1-1/4") 0.25 (1/4") 1-3 Days $226.99
M70010808S 700 1-1/4BX1/4K : Magnaloy 700 HUB 1-1/4" BORE X 1/4" KEY SPECIAL 700 Keyed 1.25 (1-1/4") 0.25 (1/4") 1-3 Days $186.99
M700108M10S 700 1-1/4BX10MMK : Magnaloy 700 HUB 1-1/4" BORE X 10MM KEY SPECIAL 700 Keyed 1.25 (1-1/4") 10mm 1-3 Days $214.99
M70010812S 700 1-1/4BX3/8K : Magnaloy 700 HUB 1-1/4" BORE X 3/8" KEY SPECIAL 700 Keyed 1.25 (1-1/4") 0.375 (3/8") 1-3 Days $186.99
M70010810DSS 700 1-1/4BX5/16K : Magnaloy 700 HUB 1-1/4" BORE X 5/16" KEY DBL SET SCREW 700 Keyed 1.25 (1-1/4") 0.3125 (5/16") 7-10 Days $164.99
M70010810DSS45 700 1-1/4BX5/16K : Magnaloy 700 HUB 1-1/4" BORE X 5/16" KEY DBL SET SCREW@45 DEG 700 Keyed 1.25 (1-1/4") 0.3125 (5/16") 7-10 Days $164.99
M70010810C 700 1-1/4BX5/16K : Magnaloy 700 HUB 1-1/4" BORE X 5/16" KEY W/CLAMP 700 Keyed 1.25 (1-1/4") 0.3125 (5/16") 1-3 Days $196.99
M70010810 700 1-1/4BX5/16K : Magnaloy 700 HUB 1-1/4" BORE X 5/16" KEY 700 Keyed 1.25 (1-1/4") 0.3125 (5/16") 1-3 Days $157.99
M70010408S 700 1-1/8BX1/4K : Magnaloy 700 HUB 1-1/8" BORE X 1/4" KEY SPECIAL 700 Keyed 1.125 (1-1/8") 0.25 (1/4") 1-3 Days $186.99
M70010410S 700 1-1/8BX5/16K : Magnaloy 700 HUB 1-1/8" BORE X 5/16" KEY SPECIAL 700 Keyed 1.125 (1-1/8") 0.3125 (5/16") 1-3 Days $186.99
M70012212S 700 1-11/16BX3/8K : Magnaloy 700 HUB 1-11/16" BORE X 3/8" KEY SPECIAL 700 Keyed 1.6875 (1-11/16") 0.375 (3/8") 1-3 Days $186.99
M70013018SC 700 1-15/16B9/16K : Magnaloy 700 HUB 1-15/16" BORE 9/16" KEY SPECIAL W/CLAMP 700 Keyed 1.9375 (1-15/16") 0.5625 (9/16") 1-3 Days $226.99
M70013018S 700 1-15/16B9/16K : Magnaloy 700 HUB 1-15/16" BORE 9/16" KEY SPECIAL 700 Keyed 1.9375 (1-15/16") 0.5625 (9/16") 1-3 Days $186.99
M70013016S 700 1-15/16BX1/2K : Magnaloy 700 HUB 1-15/16" BORE X 1/2" KEY SPECIAL 700 Keyed 1.9375 (1-15/16") 0.5 (1/2") 1-3 Days $186.99
M70013016SC 700 1-15/16BX1/2K : Magnaloy 700 HUB 1-15/16" BORE X 1/2" KEY SPECIAL. W/CLAMP 700 Keyed 1.9375 (1-15/16") 0.5 (1/2") 1-3 Days $226.99
M70013016SDSS45 700 1-15/16BX1/2K : Magnaloy 700 HUB 1-15/16" BORE X 1/2" KEY SPECIAL W/DBL SET SCREW 45 700 Keyed 1.9375 (1-15/16") 0.5 (1/2") 7-10 Days $192.99
M70012516S 700 1-25/32MMBX1/2K : Magnaloy 700 HUB 1-25/32MM BORE X 1/2" KEY SPECIAL 700 Keyed 1.78125 (1-25/32") 0.5 (1/2") 1-3 Days $214.99
M70010608S 700 1-3/16BX1/4K : Magnaloy 700 HUB 1-3/16" BORE X 1/4" KEY SPECIAL 700 Keyed 1.1875 (1-3/16") 0.25 (1/4") 1-3 Days $186.99
M70012418S 700 1-3/4B9/16K : Magnaloy 700 HUB 1-3/4" BORE 9/16" KEY SPECIAL 700 Keyed 1.75 (1-3/4") 0.5625 (9/16") 1-3 Days $214.99
M70012416S 700 1-3/4BX1/2K : Magnaloy 700 HUB 1-3/4" BORE X 1/2" KEY SPECIAL 700 Keyed 1.75 (1-3/4") 0.5 (1/2") 1-3 Days $186.99
M70012416SDSS45 700 1-3/4BX1/2K : Magnaloy 700 HUB 1-3/4" BORE X 1/2" KEY SPECIAL W/DBL SET SCREW@45D 700 Keyed 1.75 (1-3/4") 0.5 (1/2") 7-10 Days $192.99
M70012412DSS45 700 1-3/4BX3/8K : Magnaloy 700 HUB 1-3/4" BORE X 3/8" KEY W/DBL SET SCREW AT 45DEG 700 Keyed 1.75 (1-3/4") 0.375 (3/8") 7-10 Days $164.99
M70012412DSS 700 1-3/4BX3/8K : Magnaloy 700 HUB 1-3/4" BORE X 3/8" KEY W/DBL SET SCREW 700 Keyed 1.75 (1-3/4") 0.375 (3/8") 7-10 Days $164.99
M70012412C 700 1-3/4BX3/8K : Magnaloy 700 HUB 1-3/4" BORE X 3/8" KEY W/CLAMP 700 Keyed 1.75 (1-3/4") 0.375 (3/8") 1-3 Days $196.99
M70012412 700 1-3/4BX3/8K : Magnaloy 700 HUB 1-3/4" BORE X 3/8" KEY 700 Keyed 1.75 (1-3/4") 0.375 (3/8") 1-3 Days $157.99
M70012410S 700 1-3/4BX5/16K : Magnaloy 700 HUB 1-3/4" BORE X 5/16" KEY SPECIAL 700 Keyed 1.75 (1-3/4") 0.3125 (5/16") 1-3 Days $186.99
M70012414DSS45 700 1-3/4BX7/16 : Magnaloy 700 HUB 1-3/4" BORE X7/16 W/DBL SET SCREW AT 45DEG 700 Keyed 1.75 (1-3/4") 0.4375 (7/16") 7-10 Days $164.99
M70012414DSS 700 1-3/4BX7/16 : Magnaloy 700 HUB 1-3/4" BORE X7/16 W/DBL SET SCREW 700 Keyed 1.75 (1-3/4") 0.4375 (7/16") 7-10 Days $164.99
M70012414C 700 1-3/4BX7/16K : Magnaloy 700 HUB 1-3/4" BORE X 7/16" KEY W/CLAMP 700 Keyed 1.75 (1-3/4") 0.4375 (7/16") 1-3 Days $196.99
M70012414 700 1-3/4BX7/16K : Magnaloy 700 HUB 1-3/4" BORE X 7/16" KEY 700 Keyed 1.75 (1-3/4") 0.4375 (7/16") 1-3 Days $157.99
M700124N 700 1-3/4BXNOK : Magnaloy 700 HUB 1-3/4" BORE X NO KEY SPECIAL 700 Keyed 1.75 (1-3/4") NONE 1-3 Days $186.99
M70011212S 700 1-3/8BX3/8K : Magnaloy 700 HUB 1-3/8" BORE X 3/8" KEY SPECIAL 700 Keyed 1.375 (1-3/8") 0.375 (3/8") 1-3 Days $186.99
M70011210DSS45 700 1-3/8BX5/16E : Magnaloy 700 HUB 1-3/8" BORE X 5/16" W/DBL SET SCREW @ 45DEGE 700 Keyed 1.375 (1-3/8") 0.3125 (5/16") 7-10 Days $164.99
M70011210DSS 700 1-3/8BX5/16K : Magnaloy 700 HUB 1-3/8" BORE X 5/16" KEY W/DBL SET SCREW 700 Keyed 1.375 (1-3/8") 0.3125 (5/16") 7-10 Days $164.99
M70011210 700 1-3/8BX5/16K : Magnaloy 700 HUB 1-3/8" BORE X 5/16" KEY 700 Keyed 1.375 (1-3/8") 0.3125 (5/16") 1-3 Days $157.99
M70013116SDSS 700 1-31/32BX1/2K : Magnaloy 700 HUB 1-31/32" BORE X 1/2" KEY SPECIAL W/DBL SET SCREW 700 Keyed 1.96875 (1-31/32") 0.5 (1/2") 7-10 Days $192.99
M70012012DSS45 700 1-5/8BX3/8K : Magnaloy 700 HUB 1-5/8" BORE X 3/8" KEY W/DBL SET SCREW AT 45DEG 700 Keyed 1.625 (1-5/8") 0.375 (3/8") 7-10 Days $164.99
M70012012C 700 1-5/8BX3/8K : Magnaloy 700 HUB 1-5/8" BORE X 3/8" KEY W/CLAMP 700 Keyed 1.625 (1-5/8") 0.375 (3/8") 1-3 Days $196.99
M70012012 700 1-5/8BX3/8K : Magnaloy 700 HUB 1-5/8" BORE X 3/8" KEY 700 Keyed 1.625 (1-5/8") 0.375 (3/8") 1-3 Days $157.99
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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
$82.00$70.99
Sale Off
700V : Magnaloy 770 Insert, 80A, Viton, M770V8
$451.00$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.