Truck Traction Drives & Electric Bus Traction Drive Components

Sotek manufactures precision truck traction drives and electric bus traction drive components for heavy vehicle electrification programs. From our ISO-certified facility in Buffalo, New York, we produce the stator cores, rotor assemblies, and precision lamination stacks that power commercial vehicle and transit fleet traction motors across North America.

As OEMs and Tier 1 suppliers accelerate electrification of heavy-duty trucks, transit buses, and commercial fleets, the demand for high-performance traction motor components has grown significantly. Sotek supports these programs with vertically integrated manufacturing — from electrical steel lamination processing through completed stator and rotor assemblies — all under one roof in Western New York.

Truck Traction Drive Components

Sotek's truck traction drives expertise covers the full spectrum of heavy-duty vehicle electrification. We manufacture stator lamination stacks, rotor cores, and complete stator assemblies for the high-torque, high-cycle traction motors used in Class 6–8 electric and hybrid commercial trucks. Our components are engineered to meet the demanding thermal, mechanical, and performance requirements of truck traction drive systems.

• Stator cores and stator lamination stacks for truck traction motors
• Rotor core assemblies for commercial vehicle drive systems
• Precision electrical steel laminations for high-efficiency truck traction drives
• Prototype-to-production capability for new truck electrification programs

Electric Bus Traction Drive Components

Electric bus traction drive systems require components that deliver consistent performance across millions of start-stop cycles in demanding urban transit environments. Sotek supplies electric bus traction drive components — including stator assemblies, rotor cores, and lamination stacks — to transit OEMs and motor manufacturers supporting municipal bus fleet electrification programs throughout North America.

• Stator assemblies for electric bus traction motors
• Rotor assemblies optimized for electric bus drive cycles
• High-grade electrical steel laminations for transit traction applications
• Full traceability and quality documentation for transit program requirements

Why Choose Sotek for Traction Drive Components

Sotek brings decades of experience in precision electrical motor component manufacturing to every truck and electric bus traction drive program. Our Buffalo, NY facility offers:

• Vertical integration: Steel processing, lamination stamping, stacking, and stator assembly in a single facility
• ISO certification: Quality management systems designed for OEM supply chain requirements
• Engineering support: Application engineering assistance for traction motor design optimization
• Flexible volumes: Prototype, pilot, and full-production capacity for truck and bus traction programs
• U.S. manufacturing: Domestic supply chain for programs requiring American-made components

Related Capabilities

Sotek's traction drive component manufacturing draws on our full range of motor component capabilities. Learn more about our heavy industrial drives manufacturing, rotor assembly services, and stator motor assembly capabilities.