SB100 Safety Brake

The SB100 is a model of a spring-applied safety brake​ (also commonly referred to as a fail-safe brake​ or holding brake). It is typically used as a critical safety component in industrial machinery. Here is a description of its features and function:

Core Operating Principle:

The SB100 operates on a fail-safe, spring-applied​ mechanism. Multiple robust internal springs are used to apply the braking force. The brake is normally engaged; it is released only when an external force (usually hydraulic or pneumatic pressure) overcomes the spring force. If the pressure is lost, the springs instantly and automatically apply the brake. This ensures safety in the event of a power failure, pressure loss, or emergency stop.

Key Characteristics:

Compact & High Torque:​ The "100" in the model name often indicates a specific torque rating or size series. The design is engineered to deliver a high braking torque relative to its physical size.

Multiple Friction Discs:​ It typically uses a pack of alternating steel and friction discs. When applied, the springs compress this pack, creating a large friction surface area for high torque in a compact space.

Zero Backlash:​ Once engaged, the brake provides a rigid, direct connection with zero backlash, essential for precise positioning and holding.

Manual Release:​ Most models include a provision for manual release (e.g., via a screw or lever) for maintenance or setup without system pressure.

Direct Mounting:​ It is designed for direct flange-mounting onto a motor or gearbox shaft, often serving as a shaft-mounted brake.

Sealed Construction:​ Housing is sealed to protect internal components (springs, discs) from contaminants like dust, moisture, and oil, ensuring long-term reliability.

Typical Applications:

The SB100 safety brake is used wherever uncontrolled movement poses a hazard. Common applications include:

Axis brakes​ on industrial robots and robotic arms.

Servo motor brakes​ on CNC machines, indexing tables, and automated manufacturing equipment.

Holding brakes​ for vertical axes on Z-drives, elevators, and lifts.

Emergency stops​ on conveyors, cranes, winches, and material handling systems.

Summary:

The SB100 is a compact, multi-disc, failsafe brake designed to hold a load securely in a stopped position. Its primary function is safety and prevention of unintended movement, making it an indispensable component in automated systems where personnel safety and equipment protection are paramount.

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