Mini Disc Style (MD, MDS, and MDSD Series)

  • Zero backlash design
  • Highest torsional stiffness
  • All metal (aluminum hubs, stainless steel discs)
  • Moderate-high torque, low inertia
Mini Disc Style (MD, MDS, and MDSD Series)

Mini Disc Style (MD, MDS, and MDSD Series) Additional Resources

MD Series Overview

  • Standard mini disc configuration; utilizing two disc packs
  • Material: Aluminum hubs with stainless steel discs
  • Nominal Torque: up to 111 in-lbs
  • Torsional Stiffness: up to 26,550 in-lbs/rad
  • Bore Capacity: up to 1.18 inches
  • Max RPM: up to 10,000 RPM
  • Max Temperature: 300°F

MD Series Performance Data

 

Torque

Torque

Max

Weight*

Moment of

Misalignment

 

Nominal*

Stiffness*

 

 

inertia*

Angular

Parallel

Axial

Size

in-lbs

in-lb/rad

RPM

oz

g

lb-in2

degrees

in

in

MD-19C

6

1,770

10,000

0.635

18

0.003

1.5°

0.005

± 0.20

MD-25C

9

3,983

8,000

0.882

25

0.009

1.5°

0.005

± 0.20

MD-32C

22

9,735

6,000

2.116

60

0.033

1.5°

0.006

± 0.20

MD-40C

31

12,390

5,000

3.527

100

0.065

1.5°

0.006

± 0.20

MD-50C

80

19,470

4,000

7.408

210

0.028

1.5°

0.006

± 0.20

MD-63C

111

26,550

3,000

11.993

340

0.718

1.5°

0.006

± 0.20

* Based on minimum bore size.

MDS Series Overview

  • Spacer version of the minidisc style coupling
  • Material: Aluminum hubs with stainless steel discs
  • Nominal Torque: up to 221 in-lbs
  • Torsional Stiffness: up to 22,125 in-lbs/rad
  • Bore Capacity: up to 1.00 inches
  • Max RPM: up to 4,800 RPM
  • Max Temperature: 300°F

MDS Performance Data

 

Torque

Torque

Max

Weight*

Moment of

Misalignment

 

Nominal*

Stiffness*

 

 

inertia*

Angular

Parallel

Axial

Size

in-lbs

in-lb/rad

RPM

oz

g

lb-in2

degrees

in

in

MDS-32C

18

8,850

4,800

1.690

48

0.212

0.006

± 0.016

MDS-40C

35

13,275

3,800

2.860

81

0.055

0.007

± 0.016

MDS-50C

66

17,700

3,100

5.290

150

0.157

0.007

± 0.024

MDS-63C

89

22,125

2,400

8.110

230

0.376

0.012

± 0.031

* Based on minimum bore size.

MDSD Series Overview

  • Single disc pack version of the mini disc coupling
  • Material: Aluminum hubs with stainless steel disc
  • Nominal Torque: up to 89 in-lbs
  • Torsional Stiffness: up to 44,250 in-lbs/rad
  • Bore Capacity: up to 1.00 inches
  • Max RPM: up to 4,800 RPM
  • Max Temperature: 300°F

MDSD Performance Data

 

Torque

Torque

Max

Weight*

Moment of

Misalignment

 

Nominal*

Stiffness*

 

 

inertia*

Angular

Parallel

Axial

Size

in-lbs

in-lb/rad

RPM

oz

g

lb-in2

degrees

in

in

MDSD-32C

18

11,505

4,800

1.3

38

0.015377

N/A

± 0.20

MDSD-40C

35

24,780

3,800

2.3

66

0.041006

N/A

± 0.20

MDSD-50C

66

32,745

3,100

4.2

120

0.126435

N/A

± 0.20

MDSD-63C

89

44,250

2,400

6.7

190

0.287042

N/A

± 0.20

* Based on minimum bore size.