The Turbine Rotor Bearing is vital part of the multi-block turbine in Big Reactors. A turbine must have exactly

128px-Block Turbine Rotor Bearing

one rotor bearing in it for the structure to complete.

Rotor Bearings can be placed on any inside wall part of the turbine. The best place to put the bearing is the centre of the turbine as it determines where the Turbine Rotor Shafts will be. This will also give you more room to attach rotor blades and to build turbine coils, as well as a more pleasing symmetrical look.