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Double Disk Flexible Coupling

High Torsional Rigidity, High Torque, High Accuracy, High Durability, Backlash 0, Low Inertia Moment, Small Size
● Type:Double disk type
● Body Material:High tensile aluminum alloy
● Application:Stepper Motor, Servo Motor, Encoder
● Allowable Misalignment:Angular Misalignment, Eccentricity, Axial Misalignment
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Price: USD  32.6  -  37.5  EA

* Free shipping to North America and most of Europe for orders of $100 or more

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Free Exchange if the item has quality problems within 1 year. Learn more

Structure

Features

1、From φ16 ~φ55 total 7 models 61 sizes are standard.
2、Hysterisis will be decreased by body shape and original slitting pattern.
3、Original taper crowning shaped screw has used for joint. (PAT.P)※1
4、Side clumping type and setscrew key type are released.

Material

  Material Surface treatment
Body Aluminum alloy Alumite
Spacer Aluminum alloy Alumite
Disk SUS 301
Screw SCM 435 Black oxidation coating

Specification

Type Maximum torque capacity
(N.m)
Torsiona stiffness
(N.m/rad)
Torsional spring constant number
(N.m/rad)
Parallel misalignment capacity
(mm)
Angular misalignment capacity
(°)
End play capacity
(mm)
Axial spring constant number
(N/mm)
Maximum rotatio speed
(rpm)
Moment of inertia
(kg.m²)
MARD-16A-3Y-5Y 0.6 500 600 0.1 1.0 ±0.2 50 10000 4.22×10-7
MARD-16A-4Y-5Y 1.0 500 600 0.1 1.0 ±0.2 50 10000 4.22×10^-7
MARD-16A-4.5Y-5Y 1.0 500 600 0.1 1.0 ±0.2 50 10000 4.22×10^-7
MARD-16A-5Y-5Y 1.0 500 600 0.1 1.0 ±0.2 50 10000 4.22×10^-7
MARD-16A-5Y-6Y 1.0 500 600 0.1 1.0 ±0.2 50 10000 4.22×10^-7
MARD-21A-6Y-6.35Y 1.2 900 1300 0.1 1.0 ±0.2 75 10000 1.11×10^-6
MARD-21A-6.35Y-6.35Y 1.2 900 1300 0.1 1.0 ±0.2 75 10000 1.11×10^-6
MARD-21A-6.35Y-8Y 1.2 900 1300 0.1 1.0 ±0.2 75 10000 1.11×10^-6
MARD-21A-6.35Y-9Y 1.2 900 1300 0.1 1.0 ±0.2 75 10000 1.11×10^-6
MARD-21A-4Y-6.35Y 1.2 900 1300 0.1 1.0 ±0.2 75 10000 1.11×10^-6
MARD-21A-4.5Y-6.35Y 1.2 900 1300 0.1 1.0 ±0.2 75 10000 1.11×10^-6
MARD-21A-5Y-6.35Y 1.2 900 1300 0.1 1.0 ±0.2 75 10000 1.11×10^-6
Type Size Locking screw Tightening torque
(N.m)
Weight
(g)
d1 d2 d3 D L L2 L3 size
MARD-16A-3Y-5Y 3 5 6.5 16.6 23.1 7.2 4.2 M2.6 × 6 1.0 11
MARD-16A-4Y-5Y 4 5 6.5 16.6 23.1 7.2 4.2 M2.6 × 6 1.0 11
MARD-16A-4.5Y-5Y 4.5 5 6.5 16.6 23.1 7.2 4.2 M2.6 × 6 1.0 11
MARD-16A-5Y-5Y 5 5 6.5 16.6 23.1 7.2 4.2 M2.6 × 6 1.0 11
MARD-16A-5Y-6Y 5 6 6.5 16.6 23.1 7.2 4.2 M2.6 × 6 1.0 11
MARD-21A-6Y-6.35Y 6 6.35 9.5 21 24.5 7.0 5.2 M2.6 × 8 1.2 17
MARD-21A-6.35Y-6.35Y 6.35 6.35 9.5 21 24.5 7.0 5.2 M2.6 × 8 1.2 17
MARD-21A-6.35Y-8Y 6.35 8 9.5 21 24.5 7.0 5.2 M2.6 × 8 1.2 17
MARD-21A-6.35Y-9Y 6.35 9 9.5 21 24.5 7.0 5.2 M2.6 × 8 1.2 17
MARD-21A-4Y-6.35Y 4 6.35 9.5 21 24.5 7.0 5.2 M2.6 × 8 1.2 17
MARD-21A-4.5Y-6.35Y 4.5 6.35 9.5 21 24.5 7.0 5.2 M2.6 × 8 1.2 17
MARD-21A-5Y-6.35Y 5 6.35 9.5 21 24.5 7.0 5.2 M2.6 × 8 1.2 17