The principal object of the present invention is to produce a face to face plate type swivel with {HEAD ~ an interposed frictionless bearing material} at {TAIL ~ lower cost} without any corresponding loss in simplicity of design, ease of assembly or strength of structure and to improve the ease of operation and ease of maintenance 
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The principal object of the present invention is to produce a face to face plate type swivel with { HEAD ~ an interposed frictionless bearing material } at { TAIL ~ lower cost } without any corresponding loss in simplicity of design , ease of assembly or strength of structure and to improve the ease of operation and ease of maintenance
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