Should I Choose Sealed or Grease-Lubricated Undercarriage Components?

Sealed sprockets and sealed track rollers suit dusty, continuous operations where the machine rarely stops and maintenance windows are costly, while grease-lubricated components suit milder duties where field serviceability matters and budgets are sensitive to initial outlay. Choosing the wrong route is worse than choosing the wrong brand, since sealing a machine that needs on-site part swaps defers the problem to the next major teardown. Sealing means no routine disassembly for greasing under normal conditions, not permanent immunity, as the seals themselves age with heat, dust and ultraviolet exposure.