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ROBA®-servostop® Lean

ROBA®-servostop® Lean
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ROBA®-servostop® Lean

Product catalog summary
Overview: The document outlines the technical specifications and installation guidelines for ROBA®-servostop® safety brakes, designed for servomotors and lightweight robots. These brakes operate on a fail-safe principle, ensuring reliability during power failures or emergency stops.
Specifications: ROBA®-servostop® brakes are available in Classic, Lean, and Cobot series, tailored for specific applications. They offer nominal braking torque from 0.23 to 100 Nm and maximum speeds between 3000 to 10500 rpm, depending on the model.
Key Features:
  • Fail-safe operation with a spring-applied mechanism.
  • High temperature resistance up to 120°C.
  • Lightweight and compact design for robotic applications.
  • High performance density and energy efficiency.
  • Easy installation without axial positioning adjustments.
Installation Guidelines: Brakes can be installed in any position within servomotors, ideally in the A-bearing shield to minimize temperature expansion effects. Installation involves screwing the brakes via threaded holes in the coil carrier, with braking torque transmitted through the rotor's toothing to the hub.
Performance Data: Detailed tables provide dimensions, nominal braking torque, coil voltage, electrical power, and speed limits for each brake type. Recommendations for temperature-related torque reductions and ambient condition considerations are included.
Recommendations: For critical applications, consulting mayr® power transmission for an application check is advised. The document stresses the importance of considering parameters like temperature, wear, and mounting conditions that influence braking torque.
Installation Specifications: Brakes should be mounted via threaded holes in the coil carrier and through holes in the bearing flange provided by the customer, with emphasis on observing installation dimensions.
Product Types and Order Numbers: Various brake types, such as Type 8981.29001, are listed with details on screw connections and rotor disk attachments. An example order number illustrates the configuration.
Performance Specifications: Detailed tables on friction work and dynamic braking torque across different sizes and operating modes are provided, including data on maximum friction work, dynamic braking torque, and wear for different speed ranges.
Switching Times: Information on connection times, response delays, and separation times for different brake types and sizes is provided, highlighting differences between DC-side and AC-side switching.
Key Parameters: Definitions for key parameters such as braking torque (MBr), load torque (ML), connection time (t1), and others are provided to aid understanding of the technical data.
Contact Information: Contact details for Mayr's representatives and branch offices in various countries, including Germany, China, Great Britain, France, Italy, Singapore, Switzerland, USA, and others, are listed.
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Catalog excerpts

ROBA®-servostop® Lean-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® Lean-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® Lean-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® Lean-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® Lean-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® Lean-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® Lean-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® Lean-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® Lean-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® Lean-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.