Product Details Supplier Info More products

Mayr Transmissions has designed the Roba disk pack coupling to provide backlash-free, positive locking in applications featuring very low tightening torques.

The Roba disk pack couplings cover a nominal torque range of 22,000Nm to 110,000Nm.

They are coupled via a new cone connection to the transmissions hubs rather than using traditional ground bolts with frictional locking.

Installation and de-installation is said to be easier and can be carried out without displacement of the hubs.

Key specifications

  • Positive connection is backlash-free and reduces the screw tightening torques to a fraction of the equivalent friction-locked couplings
  • Roba DS couplings have high torque density, are insensitive to extremes of temperature, are torsionally rigid and maintenance free
  • The couplings transmit torque backlash free, without wear, and compensate for shaft misalignments
  • Double-jointed couplings can be manufactured with custom spacers
  • When tightening, the cone shaped mounting parts create expansion forces to be generated which expand the parts radially, within elastic limits, resulting in a backlash-free connection of the disk pack
  • The disk packs can be installed or removed with a socket set or torque wrench

Mayr Transmissions

Mayr are the first choice for torque limiters, clutches, electromagnetic safety brakes and precision shaft couplings.

Mayr combine more than 110 years of innovation, manufacturing technology and quality control with world-class levels of customer service to ensure we maintain our market leading position.

Torque limiters and friction clutches

  • Backlash free ball indent, magnetic and friction torque limiters for the protection of rotating machinery and other drive systems.
  • Torque range from 0.1 to 100,000Nm.

Electromagnetic safety brakes

  • Single and multi-circuit, holding and dynamic fail-safe brakes with EN81, IP67 and BGV C 1 options.
  • Torque range from 1.1 to 50,000Nm.

Precision shaft couplings

  • Torsionally rigid, backlash-free, flexible shaft couplings in a range of designs including metal disk, carbon spacer, bellows and elastomeric spider.
  • Torque range up to 110,000Nm.

Mayr’s products can be found in many of today’s most demanding of applications including:

  • Stage and theatre
  • Winching and hoisting
  • Water treatment
  • Wind energy
  • Bottling and packaging equipment
  • Machine tools
  • Food processing.

With a huge range of standard products and the ability to design and make application specific designs, you can be sure Mayr will have the perfect product for your equipment. Please contact us to discuss your requirements.

View full profile