Evaporative Cooler Bearing Maintenance
Oiling and inspecting your Evaporative Cooler or Swamp Cooler bearing block bearings can save you major headaches and expense. On most Coolers, oiling the bearings is a very simple job. The majority of residential and small commercial models come with a bronze bearing. There are no moving parts to these bearings as there are with ball bearings. Bronze bearings are made with a sleeve of bronze inside a steel die-cast housing. The blower shaft spins inside the bronze sleeve.