Shop 800 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

1-3/4" to 3-3/4", Specials available upon request

Click HERE to view the Catalog

Click HERE to view the entire Keyed Coupling Collection



 Series 800 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
M80030824DSS 800 3-1/4BX3/4K : Magnaloy 800 HUB 3-1/4" BORE X 3/4" KEY DBL SET SCREW 800 Keyed 3.25 (3-1/4") 0.75 (3/4") 7-10 Days $298.99
M80030824 800 3-1/4BX3/4K : Magnaloy 800 HUB 3-1/4" BORE X 3/4" KEY 800 Keyed 3.25 (3-1/4") 0.75 (3/4") 1-3 Days $291.99
M80030424SDSS 800 3-1/8BX3/4K : Magnaloy 800 HUB 3-1/8" BORE X 3/4 KEY SPECIAL W/DBL SET SCREW 800 Keyed 3.125 (3-1/8") 0.75 (3/4") 7-10 Days $328.99
M80030424S 800 3-1/8BX3/4K : Magnaloy 800 HUB 3-1/8" BORE X 3/4 KEY SPECIAL 800 Keyed 3.125 (3-1/8") 0.75 (3/4") 1-3 Days $320.99
M80030424SDSS45 800 3-1/8BX3/4K : Magnaloy 800 HUB 3-1/8" BORE X 3/4 KEY SPECIAL W/DBL SET SCREW 45 DEG 800 Keyed 3.125 (3-1/8") 0.75 (3/4") 7-10 Days $328.99
M80030420S 800 3-1/8BX5/8K : Magnaloy 800 HUB 3-1/8" BORE X 5/8" KEY SPECIAL 800 Keyed 3.125 (3-1/8") 0.625 (5/8") 1-3 Days $320.99
M80030624S 800 3-3/16BX3/4K : Magnaloy 800 HUB 3-3/16" BORE X 3/4 KEY SPECIAL 800 Keyed 3.1875 (3-3/16") 0.75 (3/4") 1-3 Days $320.99
M80030624SDSS45 800 3-3/16BX3/4K : Magnaloy 800 HUB 3-3/16" BORE X 3/4 KEY SPECIAL W/DBL SET SCREW@45DEG 800 Keyed 3.1875 (3-3/16") 0.75 (3/4") 7-10 Days $328.99
M80032424S 800 3-3/4BX3/4K : Magnaloy 800 HUB 3-3/4" BORE X 3/4 KEY SPECIAL 800 Keyed 3.75 (3-3/4") 0.75 (3/4") 1-3 Days $320.99
M80032428DSS45 800 3-3/4BX7/8K : Magnaloy 800 HUB 3-3/4" BORE X 7/8" KEY DBL SET SCREW AT 45DEG 800 Keyed 3.75 (3-3/4") 0.875 (7/8") 7-10 Days $298.99
M80032428C 800 3-3/4BX7/8K : Magnaloy 800 HUB 3-3/4" BORE X 7/8" KEY W/CLAMP 800 Keyed 3.75 (3-3/4") 0.875 (7/8") 1-3 Days $330.99
M80032428DSS 800 3-3/4BX7/8K : Magnaloy 800 HUB 3-3/4" BORE X7/8" KEY DBL SET SCREW 800 Keyed 3.75 (3-3/4") 0.875 (7/8") 7-10 Days $298.99
M80032428 800 3-3/4BX7/8K : Magnaloy 800 HUB 3-3/4" BORE X7/8" KEY 800 Keyed 3.75 (3-3/4") 0.875 (7/8") 1-3 Days $291.99
M80031224S 800 3-3/8BX3/4K : Magnaloy 800 HUB 3-3/8" BORE X 3/4 KEY SPECIAL 800 Keyed 3.375 (3-3/8") 0.75 (3/4") 1-3 Days $320.99
M80031220S 800 3-3/8BX5/8K : Magnaloy 800 HUB 3-3/8" BORE X 5/8" KEY SPECIAL 800 Keyed 3.375 (3-3/8") 0.625 (5/8") 1-3 Days $320.99
M80031214S 800 3-3/8BX7/16K : Magnaloy 800 HUB 3-3/8" BORE X 7/16" KEY SPECIAL 800 Keyed 3.375 (3-3/8") 0.4375 (7/16") 1-3 Days $320.99
M80031228C 800 3-3/8BX7/8 : Magnaloy 800 HUB 3-3/8" BORE X7/8 W/CLAMP 800 Keyed 3.375 (3-3/8") 0.875 (7/8") 1-3 Days $330.99
M80031228DSS 800 3-3/8BX7/8K : Magnaloy 800 HUB 3-3/8" BORE X 7/8" KEY DBL SET SCREW 800 Keyed 3.375 (3-3/8") 0.875 (7/8") 7-10 Days $298.99
M80031228CDSS 800 3-3/8BX7/8K : Magnaloy 800 HUB 3-3/8" BORE X 7/8" KEY W/CLAMP & DBL SET SCREW 800 Keyed 3.375 (3-3/8") 0.875 (7/8") 7-10 Days $336.99
M80031228DSS45 800 3-3/8BX7/8K : Magnaloy 800 HUB 3-3/8" BORE X 7/8" KEY W/DBL SET SCREW 45 DEG 800 Keyed 3.375 (3-3/8") 0.875 (7/8") 7-10 Days $298.99
M80031228 800 3-3/8BX7/8K : Magnaloy 800 HUB 3-3/8" BORE X 7/8" KEY 800 Keyed 3.375 (3-3/8") 0.875 (7/8") 1-3 Days $291.99
M80032028DSS45 800 3-5/8BX7/8K : Magnaloy 800 HUB 3-5/8" BORE X 7/8" KEY DBL SET SCREW AT 45DEG 800 Keyed 3.625 (3-5/8") 0.875 (7/8") 7-10 Days $298.99
M80032028DSS 800 3-5/8BX7/8K : Magnaloy 800 HUB 3-5/8" BORE X 7/8" KEY DBL SET SCREW 800 Keyed 3.625 (3-5/8") 0.875 (7/8") 7-10 Days $298.99
M80032028 800 3-5/8BX7/8K : Magnaloy 800 HUB 3-5/8" BORE X7/8" KEY 800 Keyed 3.625 (3-5/8") 0.875 (7/8") 1-3 Days $291.99
M80031428S 800 3-7/16BX7/8K : Magnaloy 800 HUB 3-7/16" BORE X7/8" KEY SPECIAL 800 Keyed 3.4375 (3-7/16") 0.875 (7/8") 1-3 Days $320.99
M80032832C 800 3-7/8BX1K : Magnaloy 800 HUB 3-7/8" BORE X 1" KEY W/CLAMP 800 Keyed 3.875 (3-7/8") 1" 1-3 Days $330.99
M80032832DSS45 800 3-7/8BX1K : Magnaloy 800 HUB 3-7/8" BORE X 1" KEY W/DBL SET SCREW 45 DEG 800 Keyed 3.875 (3-7/8") 1" 7-10 Days $298.99
M80032832DSS 800 3-7/8BX1K : Magnaloy 800 HUB 3-7/8" BORE X 1" KEY W/DBL SET SCREW 800 Keyed 3.875 (3-7/8") 1" 7-10 Days $298.99
M80032832 800 3-7/8BX1K : Magnaloy 800 HUB 3-7/8" BORE X 1" KEY 800 Keyed 3.875 (3-7/8") 1" 1-3 Days $291.99
M80032828SDSS45 800 3-7/8BX7/8K : Magnaloy 800 HUB 3-7/8" BORE X7/8" KEY SPECIAL W/DBL SET SCREW @45DEG 800 Keyed 3.875 (3-7/8") 0.875 (7/8") 7-10 Days $328.99
M80032828S 800 3-7/8BX7/8K : Magnaloy 800 HUB 3-7/8" BORE X7/8" KEY SPECIAL 800 Keyed 3.875 (3-7/8") 0.875 (7/8") 1-3 Days $320.99
M800M30N 800 30MMBNOK : Magnaloy 800 HUB 30MM BORE W/ NO KEY 800 Keyed 30mm NONE 1-3 Days $320.99
M800M3210 800 32MMBX10MMK : Magnaloy 800 HUB 32MM BORE X 10MM KEY METRIC 800 Keyed 32mm 10mm 1-3 Days $320.99
M800M3810DSS45 800 38MMBX10MMK : Magnaloy 800 HUB 38MM BORE X 10MM KEY W/DBL SET SCREW AT 45DEG 800 Keyed 38mm 10mm 7-10 Days $328.99
M800M3810 800 38MMBX10MMK : Magnaloy 800 HUB 38MM BORE X 10MM KEY 800 Keyed 38mm 10mm 1-3 Days $320.99
M80030016S 800 3BX1/2K : Magnaloy 800 HUB 3" BORE X 1/2" KEY SPECIAL 800 Keyed 3" 0.5 (1/2") 1-3 Days $351.99
M80030024DSS45 800 3BX3/4K : Magnaloy 800 HUB 3" BORE X 3/4" KEY W/DBL SET SCREW AT 45DEG 800 Keyed 3" 0.75 (3/4") 7-10 Days $298.99
M80030024DSS120 800 3BX3/4K : Magnaloy 800 HUB 3" BORE X 3/4" KEY W/DBL SET SCREW @ 120 DEGREES 800 Keyed 3" 0.75 (3/4") 7-10 Days $298.99
M80030024C 800 3BX3/4K : Magnaloy 800 HUB 3" BORE X 3/4" KEY W/CLAMP 800 Keyed 3" 0.75 (3/4") 1-3 Days $330.99
M80030024 800 3BX3/4K : Magnaloy 800 HUB 3" BORE X 3/4" KEY 800 Keyed 3" 0.75 (3/4") 1-3 Days $291.99
M80030020S 800 3BX5/8K : Magnaloy 800 HUB 3" BORE X 5/8" KEY SPECIAL 800 Keyed 3" 0.625 (5/8") 1-3 Days $320.99
M80030020SDSS45 800 3BX5/8K : Magnaloy 800 HUB 3" BORE X 5/8" KEY SPECIAL DBL SET SCREW@45 DEGREE 800 Keyed 3" 0.625 (5/8") 7-10 Days $328.99
M800M4012 800 40MMBX12MMK : Magnaloy 800 HUB 40MM BORE X 12MM KEY METRIC 800 Keyed 40mm 12mm 1-3 Days $320.99
M800M4012DSS 800 40MMBX12MMK : Magnaloy 800 HUB 40MM BORE X 12MM KEY W/DBL SET SCREW 800 Keyed 40mm 12mm 7-10 Days $328.99
M800M4012C 800 40MMBX12MMK : Magnaloy 800 HUB 40MM BORE X 12MM KEY W/CLAMP 800 Keyed 40mm 12mm 1-3 Days $360.99
M800M4012DSS45 800 40MMBX12MMK : Magnaloy 800 HUB 40MM BORE X 12MM KEY W/DBL SET SCREWAT 45DEG 800 Keyed 40mm 12mm 7-10 Days $328.99
M800M4212 800 42MMBX12MMK : Magnaloy 800 HUB 42MM BORE X 12MM KEY METRIC 800 Keyed 42mm 12mm 1-3 Days $320.99
M800M4212DSS 800 42MMBX12MMK : Magnaloy 800 HUB 42MM BORE X 12MM KEY W/DBL SET SCREW 800 Keyed 42mm 12mm 7-10 Days $328.99
M800M4212DSS45 800 42MMBX12MMK : Magnaloy 800 HUB 42MM BORE X 12MM KEY DBL SET SCREW AT 45DEG 800 Keyed 42mm 14mm 7-10 Days $328.99
M800M4514DSS 800 45MMBX14MMK : Magnaloy 800 HUB 45MM BORE X 14MM KEY W/DBL SET SCREW 800 Keyed 45mm 14mm 7-10 Days $328.99



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
800H : Magnaloy 870 Insert, 55D, Hytrel, M870H5
$135.00$114.99
Sale Off
800N : Magnaloy 870 Insert, 80A, Neoprene, M870N8
$127.00$107.99
Sale Off
800U : Magnaloy 870 Insert, 90A, Urethane, M870U9
$129.00$109.99
Sale Off
800V : Magnaloy 870 Insert, 80A, Viton, M870V8
$1,014.00$858.99


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.