Measures the ability of a grease to protect a bearing against corrosion in the presence of water. Two sets of grease-coated bearings per station are partially immersed in water and rotated at a speed of 80 rpm in a sequence of running and resting periods. At end of the test, the raceways of the bearing outer rings are inspected for rust. Performs both standing and dynamic test of lubricating greases and oils. Capable of performing 4/6/8 tests at a time. Consisting of : Test rig with base plate, electric motor with gear and run/stop electronic timer, steel shaft, plummer blocks, self-aligning ball bearings, adapter sleeves, sleeve nuts and V-ring seals. Power supply 220 V, 1 Phase, 50 Hz