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ROBA®-servostop® Cobot

ROBA®-servostop® Cobot
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ROBA®-servostop® Cobot

Product catalog summary
Overview: The ROBA®-servostop® is a safety brake for servomotors and lightweight robots, operating on a fail-safe principle. It remains engaged when de-energized, ensuring reliable braking during power failures or emergency stops. It features a specially developed friction lining for effective performance.
Specifications: The brakes operate at temperatures up to 120°C, with a nominal braking torque of 0.23 to 100 Nm and speeds between 3000 to 10500 rpm. They are lightweight, energy-efficient, and easy to install without precise axial positioning.
Design Variants: Available in Classic, Lean, and Cobot designs. The Classic series fits A- or B-bearing shields of servomotors, the Lean series is for compact spaces, and the Cobot variant is optimized for robot joints with a large inner diameter and slim design.
Performance and Installation: High performance density and wear resistance are key features. Installation is easy with a steady air gap that tolerates minor bearing backlash and temperature expansion. They can be installed in any position within servomotors, with specific recommendations for A- and B-bearing shields.
Technical Data: Includes dimensions, nominal braking torque, coil voltage, electrical power, maximum speed, and weight. Installation examples and order numbers for different configurations are provided.
Recommendations: Consider temperature-related braking torque reductions and consult mayr® power transmission for critical applications. Adhere to installation dimensions and select the appropriate brake based on load and test torque.
Installation Specifications: Emphasizes adhering to specified dimensions. Brakes are mounted using threaded holes in the coil carrier and through holes in the bearing flange. The rotor disk with friction lining pads is attached to the shaft collar.
Product Types and Order Numbers: Lists various brake types, such as Type 8981.29001, with specific installation methods. Order numbers indicate size and operating mode.
Performance Specifications: Detailed tables on friction work and dynamic braking torque across sizes and speed ranges. Includes maximum friction work for individual switchings and wear limits based on braking actions.
Switching Times: Provides information on connection times, response delays, and separation times for different brake types and sizes, distinguishing between DC-side and AC-side switching.
Key Parameters: Defines key parameters such as braking torque (MBr), load torque (ML), connection time (t1), and others to aid understanding of technical specifications.
Contact Information: Lists contact details for Mayr's headquarters and representatives in various countries, including Germany, USA, and China, with phone numbers, fax numbers, and email addresses for customer support.
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Catalog excerpts

ROBA®-servostop® Cobot-2

your reliable partner ROBA®-servostop® The perfect safety brakes for servomotors and lightweight robots Reliable function due to fail-safe principle The spring applied ROBA®-servostop® is closed in de-energised condition. It provides the required braking torque even in the event of an emergency stop, a power failure or when the power supply is interrupted. To ensure that the ROBA®-servostop® brakes also provide sufficient friction work in emergency stop situations and brake movements with a defined braking torque, a friction lining developed for this purpose with a corresponding steel counter...

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ROBA®-servostop® Cobot-3

your reliable partner ROBA®-servostop® – Overview of the series ROBA®-servostop® Classic • High braking torque Classic series for installation into A- or B-bearing shield of servomotors • Wear-resistant - large number of emergency stops (dynamic brakings) are allowed • Easy installation Performance data Nominal braking torque: 1.5 up to 100 Nm Max. speed: 3000 up to 9500 rpm Page 4 ROBA®-servostop® Lean • Slim design Slim series for installation into A- or B-bearing shield of servomotors • Easy installation • High performance density at low energy consumption peration with overexcitation and...

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ROBA®-servostop® Cobot-4

ROBA®-servostop® Classic Type 8980.00100 Screw connection on the coil carrier front side Technical Data to 60 °C: For higher temperatures, please consider the following braking torque reductions: >60 °C to 80 °C: 10 % reduction >100 °C to 120 °C: 30% reduction For temperature -20 °C to 0 °C: Observe the “Ambient temperature/Climate conditions” section in the operational instructions! The braking torque values are based on friction values determined in tests at mayr® power transmission. As a friction system is influenced by many parameters, such as mounting situation, temperature, ambient conditions,...

 Open the catalog to page 4
ROBA®-servostop® Cobot-5

your reliable partner ROBA®-servostop® Classic – InstallationExamples Screw connection on the coil carrier front side Screw connection on the coil carrier back side The brakes are screwed on via threaded holes in the coil carrier and through holes, e.g., in the bearing flange (provided by the customer). The braking torque is transmitted into the hub via the toothing of the rotors. The hub must be fixed axially. Observe the installation dimensions! The braking torque is transmitted from the hub to the shaft via a key (provided by the customer). The brakes are screwed on via threaded holes in the...

 Open the catalog to page 5
ROBA®-servostop® Cobot-6

Technical Data We reserve the right to make dimensional and constructional alterations. 1) Braking torque tolerance: + 75 % 2) Suitable for a temperature of 0 up to 60 °C: For higher temperatures, please consider the following braking torque reductions: >60 °C to 80 °C: 10 % reduction For temperature -20 °C to 0 °C: Observe the “Ambient temperature/Climate conditions” section in the operational instructions! 3) The braking torque values are based on friction values determined in tests at mayr® power transmission. As a friction system is influenced by many parameters, such as mounting situation,...

 Open the catalog to page 6
ROBA®-servostop® Cobot-7

your reliable partner ROBA®-servostop® Lean – InstallationExamples Screw connection on the coil carrier front side Screw connection on the coil carrier back side The brakes are screwed on via threaded holes in the coil carrier and through holes, e.g., in the bearing flange (provided by the customer). The braking torque is transmitted into the hub via the toothing of the rotors. The hub must be fixed axially. Observe the installation dimensions! The braking torque is transmitted from the hub to the shaft via a key (provided by the customer). The brakes are screwed on via threaded holes in the...

 Open the catalog to page 7
ROBA®-servostop® Cobot-8

your reliable partner We reserve the right to make dimensional and constructional alterations. 1) Braking torque tolerance: + 75 % 2) Suitable for a temperature of 0 up to 60 °C: For higher temperatures, please consider the following braking torque reductions: >60 °C to 80 °C: 10 % reduction For temperature -20 °C to 0 °C: Observe the “Ambient temperature/Climate conditions” section in the operational instructions! 3) The braking torque values are based on friction values determined in tests at mayr® power transmission. As a friction system is influenced by many parameters, such as mounting situation,...

 Open the catalog to page 8
ROBA®-servostop® Cobot-9

o mayr your reliable partner _ The brakes are screwed on via threaded holes in the coil carrier with through holes, e.g., in the bearing flange (provided by the customer). The rotor disk with the friction lining pads is screwed to the collar of the stepped shaft or hollow shaft (provided by the customers). Observe the installation dimensions! The brake is mounted via through holes, e.g., in the bearing shield (provided by the customer) and threaded holes in the coil carrier rear side. The rotor disk with the friction lining pads is screwed to the collar of the stepped shaft or hollow shaft (provided...

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ROBA®-servostop® Cobot-11

Keys MBr = Braking torque Ml = Load torque Connection time Response delay on connection UH = Holding voltage UN = Coil nominal voltage U0 = Overexcitation voltage

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ROBA®-servostop® Cobot-12

**mayr your reliable partner Headquarters Chr. Mayr GmbH + Co. KG EichenstraBe 1, D-87665 Mauerstetten Tel.: +49 83 41/8 04-0, Fax: +49 83 41/80 44 21 www.mayr.com, E-Mail: [email protected] Service Germany/Austria Branch office China Mayr Zhangjiagang Power Transmission Co., Ltd. Fuxin Road No.1298, Yangshe Town 215637 Zhangjiagang Tel.: 05 12/58 91-75 67 Fax: 05 12/58 91-75 66 [email protected] France Mayr France S.A.S. Z.A.L. du Minopole Rue Nungesser et Coli 62160 Bully-Les-Mines Tel.: 03.21.72.91.91 Fax: 03.21.29.71.77 [email protected] Great Britain Mayr Transmissions Ltd. Valley Road,...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.