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公开(公告)号：EP1009878A1
公开(公告)日：2000-06-21
申请号：EP97935250.7
申请日：1997-07-18
CPC分类号： F16C13/028 , D21G1/022
摘要： A controlled crown roll utilizes a crown support piston (76) with a glide shoe (78) with a cavity (80) in the face of the glide shoe centered under the nip loading line. The cavity is surrounded by a land area (83), the majority of which is located away from the nip load. Use of a low viscosity hydraulic fluid, for example, 15.6 cP, with a hydraulic film thickness of 0.002 inches, results in significantly lower friction between the glide shoe and the interior surface (40) of the rotating mantle. Recesses in the piston sides form hydrostatic thrust bearings (82) which perform the centering function for the piston and the glide shoe.
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公开(公告)号：EP1009878B1
公开(公告)日：2002-10-16
申请号：EP97935250.7
申请日：1997-07-18
CPC分类号： F16C13/028 , D21G1/022
摘要： A controlled crown roll utilizes a crown support piston (76) with a glide shoe (78) with a cavity (80) in the face of the glide shoe centered under the nip loading line. The cavity is surrounded by a land area (83), the majority of which is located away from the nip load. Use of a low viscosity hydraulic fluid, for example, 15.6 cP, with a hydraulic film thickness of 0.002 inches, results in significantly lower friction between the glide shoe and the interior surface (40) of the rotating mantle. Recesses in the piston sides form hydrostatic thrust bearings (82) which perform the centering function for the piston and the glide shoe.
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