| 摘要 |
A block brake actuator including in a housing a service brake arrangement, having an electric motor and mechanism for transforming its rotary movement into an axial movement of a push rod, and a safety brake arrangement, including at least one powerful spring, which acts in a brake application direction, may be tensioned at a service brake application and may be locked to the housing in a tensioned state. The spring is arranged transverse of the push rod and acts thereon over a wedge and roller arrangement.
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