When it comes to the bearings, Tibban centrifugal pumps use well protected heavy duty bearings where oil seals and water slingers are deliberated to keep fluid and dirt out of the bearing cavity, therefore no corrosion is to be expected. When it comes to the 118 centrifugal pumps, it has been designed with eccentric locks which are used so the shaft can be easily detached without particular gears, making adjustments possible without strain. The different 118 curves range from 1500 RPM to 3500 RPM so you have part lists to choose from when in need of using one of these pumps.