cover this may be achieved with an inner compressed fiber core it is to be understood that this inner fiber core may be a wrapped fiber core achieved as by wrapping strips of blanket around the shaft this core may be compressed as by radial compression for a wrapped fiber core or axial compression for a fiber core from discs compression for the core can be reduced compression e g compressed at below about 60 percent such inner core may or may not contain one or more of lubricant binder or rigidizer on this more flexible core there can be fabricated or placed a sleeve as discussed hereinabove such also might be a more highly compressed fiber e g compressed above about 60 percent or a highly compressed fiber containing rigidizer or binder or both particularly where the outer cover member is highly compressed fiber it is to be understood that such may be used over a variety of core materials e g including fiber board materials in the service the outer cover member may even serve as a recap on a commercial roller including used rollers such manufacture will then combine the desirable heat insulation characteristic for both the inner and outer members which may be combined with flexibility offered by the inner core coupled with a desirable wear surface for the outer member the following examples show ways in which the invention has been practiced however these examples should not be construed as limiting the invention a commercial ceramic fiber prepared by the blown melt fiberizing of a molten stream of a melt composed of 56 percent alumina and a balance essentially silica is consolidated into blanket form by needling the blanket contains fibers of varying lengths including short fibers having.