Product configurator: ROBA® topstop®

Plug-and-play solution for standard servo motors
Simple solution for system redundancy
Holds load when motor is dismounted

Brake module with single piece shaft

Drive side: Hollow shaft (Bore)
Output side: Same interface as servo motor

Select

Brake module with coupled shaft, plug-in type

Drive side: Hollow shaft (Bore)
Output side: Same interface as servo motor

Select

Brake module with integrated plug-in shaft coupling

Drive side: Plug-in elastomer coupling shrink disk hub or clamping hub
Output side: Shrink disk hub

Select

Tip: Click on the column that is appropriate to you to configure the product in detail.

Size	100	120	150	175 ¹	200	260
Square flange [mm]	100	130	155	176	194	264
Nominal braking torque standard M_N [Nm]	6	12	45	70	100	200
Nominal braking torque increased [Nm]	12	30	90	120	160	400
Shaft diameter [mm]	14 / 19	19 / 24	24 / 32	35	32 / 38	42 / 48 / 55
Bore diameter [mm]	14 / 19	19 / 24	24 / 32	35	32 / 38	42 / 48 / 55
Centering diameter [mm]	80 / 95	95 / 110	110 / 130	114,3	130 / 180	250

1 Grayed-out sizes are currently not available through our product configurator. We will be happy to review your desired configuration individually – just get in touch with us.

The max. product properties listed above may change during the configuration process. Please note the final product specification in the information text or in the final configuration drawing.

Tip: Click on the column that is appropriate to you to configure the product in detail.

Size	120	150	175 ¹	200	260
Square flange [mm]	130	155	176	194	264
Nominal braking torque standard M_N [Nm]	12	45	70	100	200
Nominal braking torque increased [Nm]	30	90	120	160	400
Shaft diameter [mm]	19 / 24	24 / 32	35	32 / 38	42 / 48 / 55
Bore diameter clamping hub [mm]	15 - 32	19 - 38	20 - 45	20 - 45	35 - 55
Bore diameter shrink disk hub [mm]	15 - 28	19 - 38	20 - 45	20 - 45	35 - 60
Centering diameter [mm]	95 / 110	110 / 130	114,3	130 / 180	250

1 Grayed-out sizes are currently not available through our product configurator. We will be happy to review your desired configuration individually – just get in touch with us.

The max. product properties listed above may change during the configuration process. Please note the final product specification in the information text or in the final configuration drawing.

Tip: Click on the column that is appropriate to you to configure the product in detail.

Size	120	150	175 ¹	200	260
Square flange [mm]	130	155	176	194	264
Nominal braking torque standard M_N [Nm]	12	45	70	100	200
Nominal braking torque increased [Nm]	30	90	120	160	400
Bore diameter clamping hub [mm]	15 - 32	19 - 38	20 - 45	20 - 45	35 - 55
Bore diameter shrink disk hub [mm]	15 - 28	19 - 38	20 - 45	20 - 45	35 - 60
Centering diameter [mm]	95 / 110	110 / 130	114,3	130 / 180	250

1 Grayed-out sizes are currently not available through our product configurator. We will be happy to review your desired configuration individually – just get in touch with us.

The max. product properties listed above may change during the configuration process. Please note the final product specification in the information text or in the final configuration drawing.

Do you have questions about the product ROBA® topstop®?

Whether it's technical details, application options or specific requirements – we're happy to assist you.
Your inquiry will be answered promptly and personally by our experts.

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Product features

Application
Keeps axes secure in every position.
Optimal for vertical axes

Mounting position
On the motor, A-side

Duty cycle
Can be used for 100 % duty cycle

Benefits
Short switching times
High performance density
Long service lifetime
Low rotational moments of inertia

Design
Electromagnetic

Temperature
Insulation class F

Sound
Not noise-damped

Features
Brake with bearing supported shaft
Brake with bearing-supported output shaft and plug-in compensating coupling
Brake with hollow shaft on both sides and plug-in compensating coupling

Construction - Protection class
Closed module with optimized seal
Protection class IP 66

Assembly and maintenance
Plug-and-play solution for standard servo motors
Low-maintenance

Safety
Safe through fail-safe principle
Simple solution for system redundancy
Sensorless brake monitoring with ROBA® brake-checker® and data output with ROBA® gateway
Suitable for emergency stop braking
Optimized solution for functional safety according to DIN EN ISO 13849-1 and for static brake test
Can be regarded as a tried and tested component in terms of the Category 1 of DIN EN ISO 13849-1

Downloads

Available languages

pdf | 2,28 MB Language: en Date: 31.10.2025

Available languages

pdf | 2,05 MB Language: en Date: 13.02.2026

Available languages

pdf | 2,03 MB Language: en Date: 13.02.2026

Available languages

pdf | 2,09 MB Language: en Date: 13.02.2026

Available languages

pdf | 2,18 MB Language: en Date: 13.02.2026

Available languages

pdf | 2,26 MB Language: en Date: 13.02.2026

Available languages

pdf | 477,27 KB Language: en Date: 26.04.2022

Available languages

EN DE

Validation Aid Release

mayr^® validation aid documents provide machine manufacturers with essential information—beyond the standard B10d (MTTF_D) safety values—required for validating the selected product in accordance with DIN EN ISO 13849-2.

If you are using special versions, identifiable by the suffix “S” in the type designation, the applicability of the validation aid must be verified.

Please contact mayr® with the 7-digit mayr^® article number to confirm whether the available validation support is approved for your special version.

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