Introduction
ZF-RailFlex is a fiber composite coupling designed for electrically driven trains, adapted from automotive technology to meet rail industry requirements. It offers low-maintenance and low-friction characteristics, reducing life cycle costs.

Specifications
The coupling is designed to handle torque transmission with axial and radial offset, accommodating dynamic conditions such as crossovers and uneven rails. It operates within a range of 1,200 to 10,000 Nm and up to 5,100 rpm.

Design and Functionality
ZF-RailFlex features concentrically arranged fiber packages that ensure reliable energy transmission and offset equalization between the motor and transmission. The modular kit design allows for easy assembly and quick replacement of resilient elements without special tools.

Benefits

• No maintenance required as the coupling is grease and oil-free.
• Easy assembly and quick replacement of parts.
• Reduced weight and transmission loss, with 20% to 30% damping of peak torque values, protecting motor and transmission.
• Electrically insulating and decoupled powertrain for lower noise and increased comfort.
• Significant reduction in life cycle costs for operators.

Contact Information
ZF Friedrichshafen AG, Industrial Technology, Special Driveline Technology, 88038 Friedrichshafen, Germany. Phone: +49 7541 77-8403, Fax: +49 7541 77-90-8403, Website: www.zf.com/rail