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Motion System Design

Servo couplings

Stainless steel bellows couplings

Precision couplings Flex B and Flex K provide excellent kinematic properties with three types that offer different combinations of stiffness, radial compensation, and axial motion for high-end servo drives.

Features & benefits

  • High torsional stiffness for drive systems requiring high torsional integrity

  • High positional accuracy, low risk of resonance

  • Three or nine convolutions, or two convolutions with cardan, for different shaft alignments

  • Flex M disc-type precision coupling available for high rotational speeds and motion integrity

Huco Dynatork
Altra Industrial Motion
(888) 999-9860
Circle 151

CD couplings

A special coupling design features a CD disc that has high torsional stiffness, yet allows for misalignment in high-stress applications.

Features & benefits

  • Using finite element analysis, the CD disc can be easily modified along with changes in composite material

  • Custom disc designs (manufactured on laser cutting machines) can add to or lessen coupling flexibility or increase strength and stiffness

  • 40 standard CD coupling models and sizes to work from; custom couplings are configured much faster than couplings using all metal components requiring special dies and tooling

Zero-Max Inc.
(800) 533-1731
Circle 152

Precision couplings

Servomax precision couplings are designed to handle 10,000,000 cycles at rated torque.

Features & benefits

  • Polyurethane insert damps vibration and absorbs slight shaft misalignment in lateral, axial, and angular directions while transmitting backlash-free torque

  • Where failure is a possibility and ease of maintenance critical, the EKH series allows easy installation and removal without disturbing motors and gearboxes; handles torque ranges from 15 to 19,000 in.-lb.

  • Three different insert hardness levels allow choice between torsion resistance and flexibility levels

R+W America
(630) 521-9911
Circle 153

Flexible beam couplings

Zero-backlash beam couplings are machined from a single piece of aluminum and feature multiple spiral cuts to provide high torsional stiffness and torque capabilities.

Features & benefits

  • Multiple spiral cuts accommodate angular and parallel misalignment, as well as axial motion

  • One coupling series features two sets of three cuts, suitable for light-duty power transmission applications, such as coupling a servomotor to a leadscrew; the other series features two sets of two spiral cuts and is designed for precision applications

  • Aluminum or stainless steel; 20 body sizes available with ODs from 10 to 38 mm and bores from 2 to 19 mm

Ruland Manufacturing Co.
(508) 485-1000
Circle 154

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