ELEVANDI ABSS Anti-Lock Rear Drum Brake Lock Series

The ELEVANDI ABSS Anti-Lock Rear Drum Brake Lock series is designed for shared e-bikes, rental vehicles and OEM fleet platforms that need rear-wheel braking and vehicle-controlled wheel locking in one matched assembly. Each model combines expansion-brake performance, an electronic lock, Hall speed sensing and a mechanical locking-safety layer at the rear hub or rear motor left side.

Three models support different project priorities. ABSS3716 is the lightweight 95 mm direction with 3 magnets per ring and >=160 N.m lock-structure torque resistance. ABSS3725 retains the 95 mm brake diameter and >=160 N.m resistance while using four evenly distributed magnets for projects that specify that sensing layout. ABSS3708 moves to a 110 mm brake structure and >=300 N.m resistance for higher-demand fleet applications.

Across the series, 5V-60V DC, project-selected UART/RS485/CAN/I2C interfaces, project-defined electronic protection speed, a 30 RPM mechanical safety locking condition, OTA support and an IPX7 lock core provide a consistent engineering basis. RoHS / REACH and public validation media are confirmed for all three models.

• Three Real Model Directions: Separates lightweight 95 mm, 4-magnet 95 mm and heavy-duty 110 mm project requirements.
• Braking And Locking Integration: Combines rear expansion-brake performance with vehicle-controlled wheel immobilization.
• Hall Speed Sensing: Uses model-specific 3- or 4-magnet layouts to provide wheel-movement input to the vehicle project.
• Two-Level Locking Safety: Coordinates project-defined electronic protection with a 30 RPM mechanical safety locking condition.
• Defined Resistance Selection: Provides >=160 N.m or >=300 N.m lock-structure torque-resistance directions by model.
• Flexible Vehicle Interfaces: Offers UART, RS485, CAN or I2C as project-selected communication options.
• Fleet-Oriented Electrical Range: Supports confirmed 5V-60V DC and power from the main controller, IoT unit or battery.
• Environmental Validation Basis: Includes an IPX7 lock core, temperature/humidity fields and 72-hour neutral salt-spray testing.
• OTA And Compliance: Supports electronic-lock OTA online upgrade and confirmed RoHS / REACH publication.

During braking, the expansion-brake mechanism applies the brake shoes against the internal braking surface to generate rear-wheel braking. This expansion-brake performance is evaluated in accordance with ISO 4210-2015, while electronic-lock integration and complete-vehicle validation are confirmed within the OEM project.

For locking, the selected vehicle controller sends a lock or unlock command through the project interface. Hall speed sensing supplies wheel-movement information for the project-defined electronic protection strategy. A separate 30 RPM mechanical safety locking condition helps suppress unintended engagement outside the intended locking range. The protection architecture focuses on lock engagement and operates independently from the mechanical braking action.

The series is intended for shared e-bikes, rental e-bikes, public mobility vehicles and OEM rear-wheel platforms that need a fixed brake-lock component, vehicle-side communication and project-defined locking safety. Model selection depends on brake diameter, sensing layout, required lock-structure resistance and rear-wheel packaging.

Before sampling, provide the rear hub or rear motor drawing, 95 mm or 110 mm brake requirement, 10/12 mm axle-hole direction, wheel diameter, vehicle weight and load, operating conditions, voltage, selected interface, controller/IoT architecture, sensing layout and lock/unlock workflow. Confirm the final accessory BOM, connector, cable routing, brake actuation, installation clearance and complete-vehicle validation plan in the approved project documents.