Helwig Carbon has supplied brushes, holders, and shoes to transportation industry for many years. We understand the need of long service life for power transmission under tough operating conditions for this industry. The innovation of our signature Red Top Pad has revolutionized the life and performance of carbon brushes in the transit industry. The Red Top Pad, coupled with a constant force spring will reduce the effects of vibration, allowing for consistent contact on the brush face. The right combination of these features will allow for maximum life and performance. Our Lead-Free grades are customized to give equivalent or better performance compared to old leaded grades from competition. Let our experience in this market help you with your specific application!