A wedge brake generates holding force by driving a wedge element into position, typically creating a strong mechanical locking effect that resists travel under wind loads. It is commonly used as a storm brake solution for rail-mounted equipment where very high holding force and compact design are required. Wedge-type systems can provide high resistance with favorable force multiplication.
A wheel brake (wheel-side brake) acts directly on the wheel or wheel-related surfaces to prevent movement. By braking at the wheel, the system can be effective for parking and storm securing without relying solely on drivetrain components. Wheel brakes may be hydraulic and often include fail-safe characteristics depending on design.
Which is better depends on the application. Wedge brakes are often chosen for high wind loads and strong mechanical securing. Wheel brakes can be simpler to integrate in some layouts and may provide balanced securing across multiple wheels. In corrosive port environments, sealing, coatings, and stainless hardware can be as important as the brake type itself.
