Automobile One-Box Brake Motor Shaft

The ONE-BOX Motor Shaft is a core actuating component of modern new energy vehicle brake-by-wire systems. It precisely integrates a brushless motor with a ball screw mechanism, instantly converting electronic control signals into powerful mechanical thrust to directly drive the hydraulic piston and generate braking pressure. This design completely replaces the vacuum booster required in traditional fuel vehicles, perfectly solving the problem of lacking a stable vacuum source in electric vehicles.

Specificationscharacteristic parameter

Product Specifications	hollow shaft structure available (with full customization available upon request)
Surface Treatment	Anti-corrosion coating (customizable as required)
Material	45# steel;42CrMo alloy steel
Oil-Free Surface	Yes
Response Time	Millisecond-level (significantly faster than traditional hydraulic braking)
Features	High transmission efficiency (>90%); Fully decoupled design; Lightweight; Supports redundant braking for ADAS

Product RoleApplication Scenarios

The ONE-BOX Motor Shaft plays a vital role in the braking system of new energy vehicles (BEVs and HEVs). It efficiently and precisely converts electronic braking signals into mechanical thrust to build hydraulic pressure. Acting as the "heart" of the intelligent braking assembly, it directly determines braking response speed, energy recovery efficiency, and autonomous driving redundancy. This component is key to ensuring the driver's control stability and safety under various road conditions, especially during emergency braking or adverse weather.

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Steel sheet uncoiling

Purlin fabricating

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Our ONE-BOX Motor Shaft is precisely engineered to meet the diverse needs of modern electric and hybrid vehicles. Available with integrated brushless motor and ball screw configurations, it offers flexible, customizable solutions for both OEM and aftermarket clients.

Many customers require tailored features — such as hollow shaft design to reduce weight and improve integration, or fully decoupled pedal feel for optimized regenerative braking. With strong engineering capabilities, we deliver reliable, long-lasting ONE-BOX motor shafts that meet specific performance, assembly, and ADAS redundancy requirements.

SummaryAutomotive Industry System

To ensure consistent product quality and manufacturing excellence, our company is certified to ISO 9001 and IATF 16949 standards. These certifications reflect our commitment to international quality management systems and automotive industry compliance.

In short, the ONE-BOX Motor Shaft is an essential core component of any efficient brake-by-wire system. It not only enhances braking safety with millisecond-level response but also contributes to extended vehicle range through efficient energy recovery and overall driving reliability. If you are looking for a high-quality, high-performance actuation solution for your NEV braking system, our product is the perfect choice — a small component investment for a safer, smarter, and more efficient journey.