backstop (type RSBW ) is a FDC sprag type freewheel. It is bearing supported, centered plain bearings for low rotational speeds. 1.type RSBW backstop is a FDC sprag type freewheel. It is bearing supported, centered plain bearings for low rotational speeds.2.Unit is delivered grease lubricated ready for installation in either a horizontal or vertical position.3.Primarily used as a back stop. this ...
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