US 2014/0112697 A1 · Serrated Shaft Debris Collector

Abstract

A chip or debris trap or collector retains chips, fragments and other debris generated when a serrated or splined, press fit connection is assembled between a shaft and another component such as a housing, gear, pulley or bearing. The chip collector includes a circumferential channel or groove disposed about the shaft adjacent the ring of serrations or male splines and an adjacent circumferential flange. An optional second channel or groove resides in the other component. As the shaft and the component are assembled, chips, fragments or other debris generated by the interference fit and axial sliding assembly of the components are collected in the channel or channels and retained there as the shaft fully seats within the other component.

Claims20

Dependent claims

A chip collector for a press fit assembly comprising, in combination,

a shaft having a region of serrations of a first diameter, a circumferential channel adjacent said region of serrations, a flange of a second diameter adjacent said channel and a cylindrical portion of a third diameter adjacent said flange, and
a component adapted to be secured to said shaft, said component having a first bore of a diameter smaller than said first diameter and substantially equal to said second diameter and a second bore of a diameter smaller than said third diameter,
whereby said flange slidingly seals against said first bore, said circumferential channel collects debris generated when said region of serrations engages and abrades said first bore during assembly of said component on said shaft and said cylindrical portion achieves a press fit in said second bore.

Dependencies are inferred from the claim text.

Serrated Shaft Debris Collector

Life of this patent

Serrated Shaft Debris Collector

Life of this patent

Abstract

Claims20