misalign-para
Note: Disc Type Couplings are sold as hub halves; weight per hub includes magnets.

Magnetic couplings offer a non-contact transfer of torque. They are typically used in pumps for seal-less applications; keeping corrosive, toxic, or flammable liquids from escaping into the atmosphere.

Simple Concept: Opposite Poles Attract.

This attraction is how we transmit torque from one magnetic hub to another. By driving one magnetic hub, torque is transmitted magnetically to the other magnetic hub. This can be done through the air or through a non-magnetic containment barrier such as stainless steel or fiberglass, allowing complete isolation of the inner magnetic hub from the outer magnetic hub. There are no contacting parts.

How Disc Couplings Work

Disc type couplings consist of two opposing discs with powerful rare earth magnets. The torque applied to one disc is transferred through an air gap to the other disc. Because of its simple flat design, you can have angular misalignment of up to 3º or parallel misalignment up to ¼” and still transmit nearly full rotational torque. You could also fabricate an inexpensive flat barrier to separate the atmospheres or fluids surrounding the two discs. This is our simplest and most versatile coupling.

Advantages of Disc Type Couplingsmtd_disc_coup-300

  • No Wearing Parts
  • Synchronous Design, No Slip at Any Speed
  • No Physical Contact Between Driving and Driven Parts
  • Simplifies Containment Barrier
  • Custom Designs Available

 

Specifications in Metric
(Click here for English Measure)
PartNumber KW@
450
RPM
Max
S
peed
Weight
per
hub
Torque
N
ORMAL
Torque
PEAK
A B C
(MAX)
D E G H CUT
SHEET
.pdf
SOLID
MODEL
.SLDPRT
.STEP
HP RPM kg Nm Nm mm mm mm mm mm mm mm pdf click here step-2964
MTD-0.2 0.02 42500 0.05 0.12 0.16 26.9 21 See
Chart
for
these
sizes
15.9 15.9 3.2 N/A
MTD-0.3 0.05 26000 0.1 0.5 0.6 43.7 21 15.0 15.0 4.80 N/A
MTD-0.6 0.10 23000 0.1 0.7 0.9 50.3 28 15.0 15.0 4.80 N/A
MTD-1 0.15 19000 0.3 1.0 1.4 60.0 38 19.1 19.1 4.80 N/A
MTD-2 0.28 15500 0.6 1.7 2.3 72.6 51 25.4 25.4 4.80 N/A
MTD-5 1.22 11700 1.0 5.0 5.4 97.5 70 35 25.4 25.4 4.80 N/A
MTD-8 1.23 10500 1.2 8.1 9.0 107 70 35 25.4 25.4 6.35 N/A
MTD-12 1.85 9000 2.0 12.2 13.5 130 76 42 38.1 31.8 6.35 52
MTD-20 3.08 9200 2.2 20.3 22.6 125 70 42 38.1 31.8 6.35 52
MTD-30 4.63 9200 3.1 30.5 34.0 125 108 55 47.5 41.4 6.35 68
MTD-40 6.17 7800 4.1 40.6 45.2 147 108 65 52.6 46.0 6.35 78
MTD-50 8.02 7800 3.2 53.1 61.0 147 60 38 41.7 31.8 6.35 48

Click here to Download eDrawings Viewer

Bore Code Chart in Metric
(Click here for English Measure)
Bore Code Size 0000 0197 0236 0315 0394 0433 0472 0551 0709 0748
SOLID 5mm 6mm 8mm 10mm 11mm 12mm 14mm 18mm 19mm
MTD 0.2 X X X X
MTD 0.3 X X X X X
MTD 0.6 X X X X X X
MTD 1 X X X X X X X
MTD 2 X X X X X X
Note:
Stock sizes (MTD-0.2 through MTD-2) are kept on the shelf.
Larger units are made to order. Please call the factory for bore codes and availability of larger units.
Technical Data
Material
400 Series Stainless Steel
Magnet (Nickel-Plated)
NdFeB*
Operating Temp*
140C
*Note:
Disc couplings are also available with SmCo magnets, rated up to 280C (536F)