Shop 600 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 600 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
M600208N 600 2-1/4BXNOK : Magnaloy 600 HUB 2-1/4" BORE X NO KEY 600 Keyed 2.25 (2-1/4") NONE 1-3 Days $120.99
M60020416DSS45 600 2-1/8BX1/2K : Magnaloy 600 HUB 2-1/8" BORE X 1/2" KEY W/DBL SET SCREW AT 45DEG 600 Keyed 2.125 (2-1/8") 0.5 (1/2") 7-10 Days $99.99
M60020416DSS 600 2-1/8BX1/2K : Magnaloy 600 HUB 2-1/8" BORE X 1/2" KEY W/DBL SET SCREW 600 Keyed 2.125 (2-1/8") 0.5 (1/2") 7-10 Days $99.99
M60020416C 600 2-1/8BX1/2K : Magnaloy 600 HUB 2-1/8" BORE X 1/2" KEY W/CLAMP 600 Keyed 2.125 (2-1/8") 0.5 (1/2") 1-3 Days $134.99
M60020416 600 2-1/8BX1/2K : Magnaloy 600 HUB 2-1/8" BORE X 1/2" KEY 600 Keyed 2.125 (2-1/8") 0.5 (1/2") 1-3 Days $96.99
M60020412S 600 2-1/8BX3/8K : Magnaloy 600 HUB 2-1/8" BORE X 3/8" KEY SPECIAL 600 Keyed 2.125 (2-1/8") 0.375 (3/8") 1-3 Days $120.99
M60020410S 600 2-1/8BX5/16K : Magnaloy 600 HUB 2-1/8" BORE X 5/16" KEY SPECIAL 600 Keyed 2.125 (2-1/8") 0.3125 (5/16") 1-3 Days $146.99
M60020420S 600 2-1/8BX5/8K : Magnaloy 600 HUB 2-1/8" BORE X 5/8" KEY SPECIAL 600 Keyed 2.125 (2-1/8") 0.625 (5/8") 1-3 Days $120.99
M60020414SDSS 600 2-1/8BX7/16K : Magnaloy 600 HUB 2-1/8" BORE X 7/16" KEY W/DBL SET SCREW 600 Keyed 2.125 (2-1/8") 0.4375 (7/16") 7-10 Days $125.99
M600204N 600 2-1/8BXNOK : Magnaloy 600 HUB 2-1/8" BORE X NO KEY 600 Keyed 2.125 (2-1/8") NONE 1-3 Days $120.99
M60020616SDSS 600 2-3/16BX1/2K : Magnaloy 600 HUB 2-3/16" BORE X 1/2" KEY SPECIAL W/DBL SET SCREW 600 Keyed 2.1875 (2-3/16") 0.5 (1/2") 7-10 Days $125.99
M60020616SC 600 2-3/16BX1/2K : Magnaloy 600 HUB 2-3/16" BORE X 1/2" KEY SPECIAL W/CLAMP 600 Keyed 2.1875 (2-3/16") 0.5 (1/2") 1-3 Days $160.99
M60020616S 600 2-3/16BX1/2K : Magnaloy 600 HUB 2-3/16" BORE X 1/2" KEY SPECIAL 600 Keyed 2.1875 (2-3/16") 0.5 (1/2") 1-3 Days $120.99
M60020616SDSS45 600 2-3/16BX1/2K : Magnaloy 600 HUB 2-3/16" BORE X 1/2" KEY SP W/DBL SET SCREW @45 DEG 600 Keyed 2.1875 (2-3/16") 0.5 (1/2") 7-10 Days $125.99
M60020610S 600 2-3/16BX5/16K : Magnaloy 600 HUB 2-3/16" BORE X 5/16" KEY SPECIAL 600 Keyed 2.1875 (2-3/16") 0.3125 (5/16") 1-3 Days $120.99
M60021218S 600 2-3/8B9/16K : Magnaloy 600 HUB 2-3/8" BORE 9/16" KEY SPECIAL 600 Keyed 2.375 (2-3/8") 0.5625 (9/16") 1-3 Days $120.99
M60021216S 600 2-3/8BX1/2K : Magnaloy 600 HUB 2-3/8" BORE X 1/2" KEY SPECIAL 600 Keyed 2.375 (2-3/8") 0.5 (1/2") 1-3 Days $120.99
M60021224S 600 2-3/8BX3/4K : Magnaloy 600 HUB 2-3/8" BORE X 3/4" KEY SPECIAL 600 Keyed 2.375 (2-3/8") 0.75 (3/4") 1-3 Days $120.99
M60021212S 600 2-3/8BX3/8K : Magnaloy 600 HUB 2-3/8" BORE X 3/8" KEY SPECIAL 600 Keyed 2.375 (2-3/8") 0.375 (3/8") 1-3 Days $120.99
M60021210S 600 2-3/8BX5/16K : Magnaloy 600 HUB 2-3/8" BORE X 5/16" KEY SPECIAL 600 Keyed 2.375 (2-3/8") 0.3125 (5/16") 1-3 Days $120.99
M60021220DSS 600 2-3/8BX5/8K : Magnaloy 600 HUB 2-3/8" BORE X 5/8" KEY W/DBL SET SCREW 600 Keyed 2.375 (2-3/8") 0.625 (5/8") 7-10 Days $99.99
M60021220DSS45 600 2-3/8BX5/8K : Magnaloy 600 HUB 2-3/8" BORE X 5/8" KEY DBL SET SCREW AT 45DEG 600 Keyed 2.375 (2-3/8") 0.625 (5/8") 7-10 Days $99.99
M60021220C 600 2-3/8BX5/8K : Magnaloy 600 HUB 2-3/8" BORE X 5/8" KEY W/CLAMP 600 Keyed 2.375 (2-3/8") 0.625 (5/8") 1-3 Days $134.99
M60021220 600 2-3/8BX5/8K : Magnaloy 600 HUB 2-3/8" BORE X 5/8" KEY 600 Keyed 2.375 (2-3/8") 0.625 (5/8") 1-3 Days $96.99
M600212N 600 2-3/8BXNOK : Magnaloy 600 HUB 2-3/8" BORE X NO KEY 600 Keyed 2.375 (2-3/8") NONE 1-3 Days $120.99
M60021020S 600 2-5/16BX5/8K : Magnaloy 600 HUB 2-5/16" BORE X 5/8" KEY SPECIAL 600 Keyed 2.3125 (2-5/16") 0.625 (5/8") 1-3 Days $120.99
M60022016S 600 2-5/8BX1/2K : Magnaloy 600 HUB 2-5/8" BORE X 1/2" KEY SPECIAL 600 Keyed 2.625 (2-5/8") 0.5 (1/2") 1-3 Days $120.99
M60022012S 600 2-5/8BX3/8K : Magnaloy 600 HUB 2-5/8" BORE X 3/8" KEY SPECIAL 600 Keyed 2.625 (2-5/8") 0.375 (3/8") 1-3 Days $120.99
M60022020 600 2-5/8BX5/8 : Magnaloy 600 HUB 2-5/8" BORE X 5/8 600 Keyed 2.625 (2-5/8") 0.625 (5/8") 1-3 Days $96.99
M60022020DSS 600 2-5/8BX5/8K : Magnaloy 600 HUB 2-5/8" BORE X 5/8" KEY W/DBL SET SCREW 600 Keyed 2.625 (2-5/8") 0.625 (5/8") 7-10 Days $99.99
M60022020DSS45 600 2-5/8BX5/8K : Magnaloy 600 HUB 2-5/8" BORE X 5/8" KEY DBL SET SCREW AT 45DEG 600 Keyed 2.625 (2-5/8") 0.625 (5/8") 7-10 Days $99.99
M60022020C 600 2-5/8BX5/8K : Magnaloy 600 HUB 2-5/8" BORE X 5/8" KEY W/CLAMP 600 Keyed 2.625 (2-5/8") 0.625 (5/8") 1-3 Days $134.99
M600220N 600 2-5/8BXNOK : Magnaloy 600 HUB 2-5/8" BORE X NO KEY 600 Keyed 2.625 (2-5/8") NONE 1-3 Days $120.99
M60021416S 600 2-7/16BX1/2K : Magnaloy 600 HUB 2-7/16" BORE X 1/2" KEY SPECIAL 600 Keyed 2.4375 (2-7/16") 0.5 (1/2") 1-3 Days $120.99
M60021420SC 600 2-7/16BX5/8K : Magnaloy 600 HUB 2-7/16" BORE X 5/8" KEY SPECIAL W/CLAMP 600 Keyed 2.4375 (2-7/16") 0.625 (5/8") 1-3 Days $160.99
M60021420S 600 2-7/16BX5/8K : Magnaloy 600 HUB 2-7/16" BORE X 5/8" KEY SPECIAL 600 Keyed 2.4375 (2-7/16") 0.625 (5/8") 1-3 Days $120.99
M60021820S 600 2-9/16BX5/8K : Magnaloy 600 HUB 2-9/16" BORE X 5/8" KEY SPECIAL. 600 Keyed 2.5625 (2-9/16") 0.625 (5/8") 1-3 Days $120.99
M60020816S 600 2.246/2.247BX1/2K : Magnaloy 600 HUB 2.246/2.247" BORE X 1/2" KEY SPECIAL 600 Keyed 2.25 (2-1/4") 0.5 (1/2") 1-3 Days $120.99
M600M2006DSS 600 20MMBX6MMK : Magnaloy 600 HUB 20MM BORE X 6MM KEY W/DBL SET SCREW 600 Keyed 20mm 6mm 7-10 Days $125.99
M600M2006 600 20MMBX6MMK : Magnaloy 600 HUB 20MM BORE X 6MM KEY 600 Keyed 20mm 6mm 1-3 Days $120.99
M600M2508 600 25MMBX8MMK : Magnaloy 600 HUB 25MM BORE X 8MM KEY METRIC 600 Keyed 25mm 8mm 1-3 Days $120.99
M600M2808 600 28MMBX8MMK : Magnaloy 600 HUB 28MM BORE X 8MM KEY 600 Keyed 28mm 8mm 1-3 Days $120.99
M60020016DSS45 600 2BX1/2K : Magnaloy 600 HUB 2" BORE X 1/2" KEY DBL SET SCREW @45 600 Keyed 2" 0.5 (1/2") 7-10 Days $99.99
M60020016DSS 600 2BX1/2K : Magnaloy 600 HUB 2" BORE X 1/2" KEY DBL SET SCREW 600 Keyed 2" 0.5 (1/2") 7-10 Days $99.99
M60020016C 600 2BX1/2K : Magnaloy 600 HUB 2" BORE X 1/2" KEY W/CLAMP 600 Keyed 2" 0.5 (1/2") 1-3 Days $134.99
M60020016 600 2BX1/2K : Magnaloy 600 HUB 2" BORE X 1/2" KEY 600 Keyed 2" 0.5 (1/2") 1-3 Days $96.99
M60020012S 600 2BX3/8K : Magnaloy 600 HUB 2" BORE X 3/8" KEY SPECIAL 600 Keyed 2" 0.375 (3/8") 1-3 Days $146.99
M60020020S 600 2BX5/8K : Magnaloy 600 HUB 2" BORE X 5/8" KEY SPECIAL 600 Keyed 2" 0.625 (5/8") 1-3 Days $146.99
M60020018S 600 2BX9/16K : Magnaloy 600 HUB 2" BORE X 9/16" KEY SPECIAL 600 Keyed 2" 0.5625 (9/16") 1-3 Days $120.99
M600200N 600 2BXNOK : Magnaloy 600 HUB 2" BORE X NO KEY 600 Keyed 2" NONE 1-3 Days $120.99



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
600H : Magnaloy 670 Insert, 55D, Hytrel, M670H5
$57.00$48.99
Sale Off
600V : Magnaloy 670 Insert, 80A, Viton, M670V8
$203.00$172.99


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.