Machine Tool Components Torque limiters, servo couplings and safety brakes

We ensure maximum safety and precision

With backlash-free torque limiters and servo couplings as well as reliable safety brakes, mayr ® power transmission provides the ideal components for machine tools and machining centres. They ensure maximum safety, process accuracy and chipping performance and reduce downtimes and costs. As specialists for power transmission, mayr ® provides holistic solutions from one source.

 

 

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EAS®-Compact®

The backlash-free, load disconnecting torque limiting clutch.

  • Instant separation on overload
  • Permanent backlash-free torque transmission
  • Readable torque adjustment
  • Synchronous, ratchetting and overload designs
  • Favorable torque curve in the drive line on overload
  • High performance density
  • Construction type "short hub" also available in rustproof design and in sealed design

EAS®-smartic®

The installation space-optimised torque limiting clutch.

  • Simple torque adjustment, can be directly read off
  • Quick installation via clamping hub
  • Backlash-free torque transmission
  • Good dynamic characteristics
  • Cost-effective and reliable

smartflex®

Reliable, flexible and permanently backlash-free shaft coupling

  • Excellent misalignment capability (compensation of shaft misalignments)
  • Minimum mass moment of inertia
  • High torsional rigidity
  • High availability due to flexible modular construction
  • Simple and fast attachment via one screw
  • Nominal torque: 16 up to 700 Nm

The torque on the clamping connection, which is transmitted via frictional locking, is dependent on the hub bore (shaft diameter). For permitted values and detailed information on size selection, please see the Product Catalogue.

primeflex®

Top quality steel bellows coupling

  • Plug-in type
  • Backlash-free
  • Safe disassembly without putting the steel bellows at risk, even after longer periods of operation
  • Extremely compact design with high performance density
  • Easy installation via clamping or shrink disk connections
  • Frictional locking and positive locking shaft-hub connections
  • Excellent misalignment capability
  • Can be dimensioned variably from the modular construction
  • Cost-effective

ROBA®-DS (servo)

Compact, torsionally rigid, backlash-free shaft coupling

  • Extremely compact design due to the application of steel and high-strength aluminium alloys
  • High performance density: High torques at comparably small volumes
  • Backlash-free torque transmission with high torsional rigidity
  • Wear-free and maintenance-free

ROBA®-DS (steel)

Compact, torsionally rigid, backlash-free shaft coupling

  • Very high performance density
  • Very high, consistent torsional rigidity
  • The full nominal torque can be transmitted, even in case of misalignments and alternating loads
  • Extremely robust
  • Can be used in temperatures of up to 250 °C
  • Nominal torque: 190 up to 110,000 Nm
  • certified: up to construction size 2200 by the DNV GL

ROBA®-ES

Backlash-free, vibration damping, simple plug-in installation and maintenance-free shaft coupling

  • Torsionally flexible
  • Vibration-damping
  • Plug-in type, suitable for blind assembly
  • Nominal torque: 4 up to 1040 Nm

The torque on the backlash-free shaft-hub connection, which is transmitted via frictional locking, is dependent on the hub bore (shaft diameter). For permitted values and detailed information on size selection, please see the Product Catalogue.

ROBA®-topstop®

Modular safety brake system for A-bearing-side servomotor attachment

  • Secure holding of the axis in any position, even with de-installed servomotor, for example during machine maintenance
  • The perfect brake system for vertical axes and for handling large weights
  • Long service lifetime, even with frequent EMERGENCY STOP braking actions
  • Monitoring of the operating condition via integrated switch
  • Short, compact design
  • Low dead weight
  • Low self-heating, even at 100% duty cycle

ROBA®-alphastop®

Safety brake for A-bearing-side attachment onto Fanuc motors

  • Complete with backlash-free shaft coupling
  • Simple installation between servomotor and mounting flange
  • Completely enclosed brake housing
  • Insulation material class F
  • Can be used for 100 % duty cycle

ROBA®-pinionstop

Safe rack and pinion brake

  • Safe holding of the axis via manufacturer-assembled brake module with pinion shaft
  • Independent, electromagnetically released safety brake system
  • Integrated release monitoring
  • Sealed brake housing
  • Possibility of individual dimensioning and design of the brake configuration
  • Easy installation
  • Easy implementation of a redundant brake system (acc. Category 3) via attachment of a second ROBA-pinionstop brake or via application of an additional brake on the servomotor


ROBA®-pinionstop safety brakes are dimensioned and designed individually. Contact us! We are happy to help you find the optimum solution for your application. (The basis for the ROBA®-pinionstop is mainly the construction series ROBA-stop®-M (catalogue K.891.V_ _._ _). Depending on the installation situation, the toothed rack profile and the technical requirements, we create the appropriate brake for you with an integrated pinion.)

ROBA-stop®-M

The robust, cost-effective motor brake

  • Maintenance-free ( no re-adjustments necessary)
  • Easy installation
  • Completely enclosed brake housing in Protection IP 54 or IP 65
  • Insulation material class F
  • Can be used for 100% duty cycle
  • Short switching times

O-ring Installation ROBA-stop®-M - mayr® power transmission

ROBA®-linearstop

Hydraulic – Pneumatic – Electromagnetic

Highlights and Advantages
  • Safety brake system according to the fail-safe principle
  • Backlash-free force transmission having an effect on both sides
  • No self-reinforcement during clamping
  • Clearing the clamping device is not necessary
  • Maximum performance density
  • Suitable for EMERGENCY STOP braking actions
  • Suitable for dynamic braking actions
  • Minimum reaction times
  • Integrated switching condition monitoring possible
  • Long service lifetime
  • Can easily be integrated into existing constructions

ROBA®-linearstop hydraulic

Type 380.01 _.0

Clamps a piston rod via a spring-loaded device at the exact position required and backlash-free. The brake is opened with a hydraulic pressure of 35 – 75 bar.

Suitable for EMERGENCY STOP braking actions.

Nominal holding force: 4000 – 50000 N

For data and description, please see pages 6/7 in our catalog.

 

ROBA®-linearstop pneumatic

Type 381.0__._ (acc. Trade Association test regulation)
Clamps a piston rod via a spring-loaded device at the exact position required and backlash-free. The brake is opened with a pneumatic pressure of 4 – 6 bar.

Suitable for EMERGENCY STOP braking actions (tested by TÜV-SÜD, German Technical Inspectorate).

Type 381. 1 _ _ . _ for dynamic braking actions (acc. Trade Association test regulation)
Clamps and brakes a piston rod via a springloaded device at the exact position required and backlash-free. The brake is opened with a pneumatic pressure of 4 – 6 bar. If the Technical Data are observed, more than 20,000 dynamic braking actions are possible (tested by the TÜV-SÜD, German Technical Inspectorate).

Nominal holding force: 450 – 40000 N

For data and description, please see pages 8/9 in our catalog.

ROBA®-linearstop electromagnetic

Type 382.0__._

Clamps a piston rod via a spring-loaded device at the exact position required and backlash-free. Brake is opened through electromagnetic actuation with DC current.

Nominal holding force: 200 – 17000 N

For data and description, please see pages 12/13 in our catalog.

 

ROBA®-guidestop

Decelerate reliable and safety – Clamp rigidly and backlash-free

  • Maximum safety due to fail-safe principle
  • Design uses two braking circuits for double the holding force or a redundant function
  • Safety and reliability thanks to direct, backlash-free clamping
  • High degree of rigidity up to the full nominal force
  • Very high holding forces
  • Designed for standard linear guides

The backlash-free and rigid clamping

  • Reinforces the NC axis
  • Is gentle on the ball screw spindle
  • Improves process accuracy
  • Increases the machining performance