公开(公告)号：US3667818A

公开(公告)日：1972-06-06

申请号：US3667818D

申请日：1970-10-19

Applicant: KEYSTONE CONSOLIDATED IND INC

Inventor： ADAMSKI VINCENT WALLACE ,  MOORE ERNEST BEATTY

IPC: F16N21/02 ,  F16C1/24

CPC classification number: F16N21/02

Abstract: A HEAVY DUTY CASTER AXLE HAVING AN INTEGRAL GREASE FITTING FORMED AT ONE END PROTECTED BY A RADIALLY AND FORWARDLY EXTENDING ANNULAR FLANGE WHICH SUBSTANTIALLY ENCOMPASSES THE GREASE FITTING. AN AXIAL PASSAGE IS FORMED THROUGH THE GREASE FITTING AND EXTENDS INTO THE AXLE TO TERMINATE IN A DIAMETRICALLY EXTENDING PASSAGE OPENING TO THE EXTERIOR SURFACE THEREOF. THE AXLE AND FITTING ARE FORMED FROM A CYLINDRICAL BLANK BY THE STEPS OF FORMING AN ENLARGED RADIAL FLANGE SPACED FROM ONE END OF THE

BLANK, FORMING THE END OF THE BLANK AT THE FLANGE TO PROVIDE THE OUTLINE OF THE FITTING, DRILLING AN AXIAL PASSAGE INTO THE FORMED END AND SHANK AND A TRANSVERSE PASSAGE, AND EITHER FORMING THE FLANGE INTO A PROTECTIVE CUP OR ATTACHING A PROTECTIVE CUP ONTO THE FITTING END AND FLANGE.