Conveyor roller assembly,申请号US20020246029-传众专利搜索

Conveyor roller assembly

申请公布号：US6702091(B2)

申请号：US20020246029

申请日期：2002.09.18

申请公布日期：2004.03.09

申请人：

ROLCON, INC.

发明人：NIMMO FRANK D.;MERZ WILLIAM R.;NEWTON W. HOWARD

分类号：B65G39/12;(IPC1-7):B65G13/00

主分类号：B65G39/12

摘要：An elongated cylindrical roller tube is rotatably supported between frame members by a pair of bearing units secured to opposite end portions of the tube. Each bearing unit includes a tubular shaft supporting a hexagonal stub axle for axial movement between an outwardly projecting position engaging a frame member and an inwardly retracted position against the bias of a spring member. An anti-friction bearing is mounted on the tubular shaft and is retained within the roller tube by an annular adapter. An annular dust cover projects radially outwardly from the tubular shaft to protect the bearing. Some parts are molded of an electrically conductive plastics material, and each hexagonal stub axle has a slightly resilient outer surface and a tapered and twisted outer tip portion. The stub axles are reinforced by axially extending core pins or by opposite end portions of a cylindrical connecting rod.