The Metropolitan Transportation Authority (MTA) is North America’s largest transportation network, serving a population of 15.3 million people in the 5,000-square-mile area fanning out from New York City through Long Island, south-eastern New York State, and Connecticut. By far the largest part of MTA’s network is the NYCT subway, which has weekday ridership of some 5.7million passengers.
MTA NYC Transit Department of Subways has a specific track curve lubrication system. The Track Lubrication Department Subdivision operate, maintain, service and repair almost 300 track lubricators. These lubricators contain a pumping system that can push grease up to 2,000ft through steel tubing to apply grease to numerous tracks, up to 10 different locations throughout their curves. This system requires a grease with excellent pumpability, to be temperature stable and not have drastic viscosity changes from Winter to Summer. The grease needs to stay where it has been applied and be spread around the curves with the trains.
