Install Locations
Direct coupled overhung fan. This type of fan is entirely supported by the motor bearings, so there are no fan bearings.
Install Locations
Overhung fan with fan bearings. This fan can be coupling driven or belt driven. Ensure there is clearance under the machine guard to install sensors, guard modification may be required. Do not cover access to the grease ports.
Install Locations
This is a frequent layout for a cooling tower fan. The fan may have a gearbox, or may be belt driven without a gearbox. In the scenario of the gearbox, there may or may not be independent fan bearings to support the fan shaft. If there are fan bearings, install on them in addition to the gearbox.
Depending on the size of the gearbox, it may require, 2, 3, or 4 sensors. Right angle gearboxes frequently have an intermediate shaft. In the image below, install on the bottom gearbox bearing to capture the bearing for the intermediate shaft as well as the bearing for the output shaft.
Install Locations
This is a frequent layout for a cooling tower fan. The fan may have a gearbox, or may be belt driven without a gearbox. In the scenario of the belt, there will be at least 2 fan shaft bearings, but in some cases there may be 3 or 4 bearings. Be sure to install on each of the fan support bearings.
The below image shows a vertical shaft, but there are many fan applications (including cooling tower applications) that have a horizontal shaft. Other examples of horizontal shaft fans of this design include fans inside ducting (In-Line Duct Fans) or Air Handling Unit fans.
