Patent ID: 6085402
Filing Date: 2000-07-11
Classification: A63C,B23P,F16C,Y10T

Abstract:
A method of removing a bearing insert from a hub of a skate wheel, comprising the steps of:providing a tool having a cylindrical wall defining a hollow shaft with first and second ends, a set of retractable nipples located within the hollow shaft at the second end and extending transversely through the cylindrical wall, a means for retracting the set of nipples transversely into the hollow shaft, and a means for activating the means for retracting;providing a bearing insert mounted within a hub of a skate wheel, wherein the bearing, insert includes a cylindrical outer race, a cylindrical inner race concentrically arranged with respect to the outer race and having a central axial bore having a diameter, and a set of ball bearings located between the outer race and the inner race;providing a tubular element extending from an end of said bearing insert, wherein the tubular element has an inner circumferential wall that defines a central axial bore that is coaxially aligned with the central axial bore of the inner race and is of generally the same diameter as that of the central axial bore of the inner race, and also has a means along the inner circumferential wall for receiving the set of nipples;applying a force to said means for activating, thereby forcing said means for activating into the first end of said hollow shaft, thereby activating said means for retracting, and thereby causing said set of nipples to be retracted transversely into said hollow shaft; then with said set of nipples retracted into said hollow shaft, inserting said cylindrical wall into and through the central axial bore of said bearing insert and then into the central axial bore of said tubular element; thenreleasing the force from said means for activating, thereby causing said means for retracting to force said means for activating from the first end of said shaft, and also causing said set of nipples to transversely extend through said cylindrical wall and into engagement with said means for receiving; and thenwith said set of nipples engaged with said means for receiving, applying a pulling force to said cylindrical wall, thereby pulling said bearing insert out of said hub followed by said tubular element.