Shop 200 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:
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Series 200 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 ▼ |
|---|---|---|---|---|---|---|---|
| M20010808S | 200 1-1/4BX1/4K : Magnaloy 200 HUB 1-1/4" BORE X 1/4" KEY X 1.368/1.373 D | 200 | Keyed | 1.25 (1-1/4") | 0.25 (1/4") | 1-3 Days | $33.99 |
| M20010808 | 200 1-1/4BX1/4K : Magnaloy 200 HUB 1-1/4" BORE X 1/4" KEY | 200 | Keyed | 1.25 (1-1/4") | 0.25 (1/4") | 1-3 Days | $24.99 |
| M20010810 | 200 1-1/4BX5/16K : Magnaloy 200 HUB 1-1/4" BORE X 5/16" KEY | 200 | Keyed | 1.25 (1-1/4") | 0.3125 (5/16") | 1-3 Days | $24.99 |
| M200108NC | 200 1-1/4BXNOK : Magnaloy 200 HUB 1-1/4" BORE X NO KEY W/CLAMP | 200 | Keyed | 1.25 (1-1/4") | NONE | 1-3 Days | $65.99 |
| M200108N | 200 1-1/4BXNOK : Magnaloy 200 HUB 1-1/4" BORE X NO KEY | 200 | Keyed | 1.25 (1-1/4") | NONE | 1-3 Days | $33.99 |
| M20010408C | 200 1-1/8BX1/4K : Magnaloy 200 HUB 1-1/8" BORE X 1/4" KEY W/CLAMP | 200 | Keyed | 1.125 (1-1/8") | 0.25 (1/4") | 1-3 Days | $54.99 |
| M20010408 | 200 1-1/8BX1/4K : Magnaloy 200 HUB 1-1/8" BORE X 1/4" KEY | 200 | Keyed | 1.125 (1-1/8") | 0.25 (1/4") | Same Day | $24.99 |
| M200104N | 200 1-1/8BXNOK : Magnaloy 200 HUB 1-1/8" BORE X NO KEY | 200 | Keyed | 1.125 (1-1/8") | NONE | 1-3 Days | $33.99 |
| M20011210 | 200 1-3/8BX5/16K : Magnaloy 200 HUB 1-3/8" BORE X 5/16" KEY | 200 | Keyed | 1.375 (1-3/8") | 0.3125 (5/16") | Same Day | $24.99 |
| M200112N | 200 1-3/8BXNOK : Magnaloy 200 HUB 1-3/8" BORE X NO KEY | 200 | Keyed | 1.375 (1-3/8") | NONE | 1-3 Days | $33.99 |
| M200110N | 200 1-5/16BXNOK : Magnaloy 200 HUB 1-5/16" BORE X NO KEY | 200 | Keyed | 1.3125 (1-5/16") | NONE | 1-3 Days | $33.99 |
| M20001604 | 200 1/2BX1/8K : Magnaloy 200 HUB 1/2" BORE X 1/8" KEY | 200 | Keyed | 0.5 (1/2") | 0.125 (1/8") | Same Day | $24.99 |
| M200016N | 200 1/2BXNOK : Magnaloy 200 HUB 1/2" BORE X NO KEY | 200 | Keyed | 0.5 (1/2") | NONE | 1-3 Days | $33.99 |
| M200M1003 | 200 10MMBX3MMK : Magnaloy 200 HUB 10MM BORE X 3MM KEY | 200 | Keyed | 10mm | 3mm | 1-3 Days | $33.99 |
| M200M10NC | 200 10MMBXNOK : Magnaloy 200 HUB 10MM BORE X NO KEY W/CLAMP | 200 | Keyed | 10mm | NONE | 1-3 Days | $65.99 |
| M20002206 | 200 11/16BX3/16K : Magnaloy 200 HUB 11/16" BORE X 3/16" KEY | 200 | Keyed | 0.6875 (11/16") | 0.1875 (3/16") | 1-3 Days | $24.99 |
| M200M1104 | 200 11MMBX4MMK : Magnaloy 200 HUB 11MM BORE X 4MM KEY | 200 | Keyed | 11mm | 4mm | 1-3 Days | $33.99 |
| M200M1204 | 200 12BX4 : Magnaloy 200 HUB 12" BORE X4 METRIC | 200 | Keyed | 12mm | 4mm | 1-3 Days | $33.99 |
| M200M1305 | 200 13MMBX5MMK : Magnaloy 200 HUB 13MM BORE X 5MM KEY | 200 | Keyed | 13mm | 5mm | 1-3 Days | $33.99 |
| M200M14N | 200 14 MMBXNOK : Magnaloy 200 HUB 14 MM BORE X NO KEY | 200 | Keyed | 14mm | NONE | 1-3 Days | $33.99 |
| M200M1403 | 200 14MMBX3MMK : Magnaloy 200 HUB 14MM BORE X 3MM KEY | 200 | Keyed | 14mm | 3mm | 1-3 Days | $33.99 |
| M200M1405 | 200 14X 5MMK : Magnaloy 200 HUB 14X 5MM KEY METRIC | 200 | Keyed | 14mm | 5mm | 1-3 Days | $33.99 |
| M200M1404 | 200 14X4 : Magnaloy 200 HUB 14X4 METRIC | 200 | Keyed | 14mm | 4mm | 1-3 Days | $33.99 |
| M20003008 | 200 15/16BX1/4K : Magnaloy 200 HUB 15/16" BORE X 1/4" KEY | 200 | Keyed | 0.9375 (15/16") | 0.25 (1/4") | 1-3 Days | $24.99 |
| M20003010S | 200 15/16BX5/16K : Magnaloy 200 HUB 15/16" BORE X 5/16" KEY | 200 | Keyed | 0.9375 (15/16") | 0.3125 (5/16") | 1-3 Days | $33.99 |
| M200M1504 | 200 15MMBX4MMK : Magnaloy 200 HUB 15MM BORE X 4MM KEY | 200 | Keyed | 15mm | 4mm | 1-3 Days | $45.99 |
| M200M1505 | 200 15MMBX5MMK : Magnaloy 200 HUB 15MM BORE X 5MM KEY | 200 | Keyed | 15mm | 5mm | 1-3 Days | $33.99 |
| M200M1605 | 200 16X 5MMK : Magnaloy 200 HUB 16X 5MM KEY METRIC | 200 | Keyed | 16mm | 5mm | 1-3 Days | $33.99 |
| M200M1604 | 200 16X4 : Magnaloy 200 HUB 16X4 METRIC | 200 | Keyed | 16mm | 4mm | 1-3 Days | $33.99 |
| M200M1703 | 200 17MMBX3MMK : Magnaloy 200 HUB 17MM BORE X 3MM KEY | 200 | Keyed | 17mm | 3mm | 1-3 Days | $33.99 |
| M200M17NC | 200 17MMBXNOK : Magnaloy 200 HUB 17MM BORE X NO KEY W/CLAMP | 200 | Keyed | 17mm | NONE | 1-3 Days | $65.99 |
| M200M1705 | 200 17X 5MMK : Magnaloy 200 HUB 17X 5MM KEY METRIC | 200 | Keyed | 17mm | 5mm | 1-3 Days | $33.99 |
| M200M1806 | 200 18MMBX6MMK : Magnaloy 200 HUB 18MM BORE X 6MM KEY METRIC | 200 | Keyed | 18mm | 6mm | 1-3 Days | $33.99 |
| M200M1904 | 200 19MMBX4MMK : Magnaloy 200 HUB 19MM BORE X 4MM KEY | 200 | Keyed | 19mm | 4mm | 1-3 Days | $33.99 |
| M200M1905 | 200 19MMBX5MMK : Magnaloy 200 HUB 19MM BORE X 5MM KEY | 200 | Keyed | 19mm | 5mm | 1-3 Days | $45.99 |
| M200M1906 | 200 19MMBX6MMK : Magnaloy 200 HUB 19MM BORE X 6MM KEY METRIC | 200 | Keyed | 19mm | 6mm | 1-3 Days | $33.99 |
| M200M19N | 200 19MMBXNOK : Magnaloy 200 HUB 19MM BORE X NO KEY | 200 | Keyed | 19mm | NONE | 1-3 Days | $33.99 |
| M20010008C | 200 1BX1/4K : Magnaloy 200 HUB 1" BORE X 1/4" KEY W/CLAMP | 200 | Keyed | 1" | 0.25 (1/4") | 1-3 Days | $54.99 |
| M20010008 | 200 1BX1/4K : Magnaloy 200 HUB 1" BORE X 1/4" KEY | 200 | Keyed | 1" | 0.25 (1/4") | Same Day | $24.99 |
| M20010006 | 200 1BX3/16K : Magnaloy 200 HUB 1" BORE X 3/16" KEY | 200 | Keyed | 1" | 0.1875 (3/16") | 1-3 Days | $24.99 |
| M200100N | 200 1BXNOK : Magnaloy 200 HUB 1" BORE X NO KEY | 200 | Keyed | 1" | NONE | 1-3 Days | $33.99 |
| M200M2004 | 200 20MMBX4MMK : Magnaloy 200 HUB 20MM BORE X 4MM KEY | 200 | Keyed | 20mm | 4mm | 1-3 Days | $33.99 |
| M200M2005 | 200 20MMBX5MMK : Magnaloy 200 HUB 20MM BORE X 5MM KEY | 200 | Keyed | 20mm | 5mm | 1-3 Days | $33.99 |
| M200M2006 | 200 20MMBX6MMK : Magnaloy 200 HUB 20MM BORE X 6MM KEY METRIC | 200 | Keyed | 20mm | 6mm | 1-3 Days | $33.99 |
| M200M2205 | 200 22BX5MMK : Magnaloy 200 HUB 22" BORE X 5MM KEY METRIC | 200 | Keyed | 22mm | 5mm | 1-3 Days | $33.99 |
| M200M2206 | 200 22BX6MMK : Magnaloy 200 HUB 22" BORE X 6MM KEY METRIC | 200 | Keyed | 22mm | 6mm | 1-3 Days | $33.99 |
| M200M2204 | 200 22MMBX4MM K : Magnaloy 200 HUB 22MM BORE X 4MM KEY | 200 | Keyed | 22mm | 4mm | 1-3 Days | $33.99 |
| M200M2208 | 200 22MMBX8MMK : Magnaloy 200 HUB 22MM BORE X 8MM KEY | 200 | Keyed | 22mm | 8mm | 1-3 Days | $33.99 |
| M200M2410 | 200 24MMBX10MMK : Magnaloy 200 HUB 24MM BORE X 10MM KEY | 200 | Keyed | 24mm | 10mm | 1-3 Days | $33.99 |
| M200M2406 | 200 24MMBX6MMK : Magnaloy 200 HUB 24MM BORE X 6MM KEY | 200 | Keyed | 24mm | 6mm | 1-3 Days | $33.99 |
Showing all products
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.
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.